Product Description
GRANVILLE GEARBOX REDUCER
> Work with the largest manufacturers of worm gear reducer and door operators in Asia boasts the best machining and inspecting facilities in the world.
> Over years self- development and introduction of technology from Japan, Italy, and Germany with our partner, Granville transmission
products are widely used in the industry of metallurgy, mining, electronics, construction, conveying, chemical, textile, food, medicine, printing, rubber, and nation and defense.
> The factory not only has an advanced quality control system but the world a modern production facility.
WHAT WE DO
01 Introduction
> Granville manufactures standard and custom gear drives for industrial and specialty applications. The product line is the most extensive line of gear reducers in China and offers a solution for every power transmission need.
02 Advantages
> Comprehensive range
> The best machining and inspecting facilities
> Correcting alignment issues in dock or in operation
> Has a large portfolio of various bearings and housings meet the industry’s need
> Perfect sealing, minimize risk of leakage and environmental impact
> Offers a range of oil and grease lubrication solutions
MAIN PRODUCTS
| 1 | Warm Gear Reducer |
| 2 | SKRF Helical Geared Motors |
| 3 | Gate Operators |
| 4 | Cyclo Drive Reducer |
| 5 | Screw Actuater |
| 6 | Coupling |
GIL K SERIES HELICAL-WORM GEAR MOTOR
K series ( Two-Stage and Three-Stage )
Helical-bevel gear units from GIL-EURODRIVE provide a high degree of efficiency of over 90% in both torque directions and at all input speeds. With performance designed to last – high-endurance gearing enables high-torque, wear-free operation. With our remarkably efficient helical-bevel gear motors, you have energy-efficient angular gear drives at your fingertips. As they also have a long maintenance-free service life, they can be used in every application with AC asynchronous motors, asynchronous and synchronous servomotors. A reduced backlash version is available for precise positioning tasks for K37 to K187.
| SPECIES | |
| MODEL ( Two-Stage ) | K 19 , 29 , 39 , 49 |
| MODEL ( Three-Stage ) | K 37 , 47 , 57 , 67 , 77 , 87 , 97 , 107 , 127 , 157 , 167 , 187 |
| MOTOR POWER RANGE | 0.12 KW ~ 225KW |
| GEAR RATIO | 2.8 ~ 197.37 |
| MULTI-STAGE GEAR UNIT REDUCTION RATIO | 94 ~ 32625 |
| OUTPUT TORQUE [Nm] | 80 ~ 50000 ( Also in reduced backlash version ) |
| MOTOR VOLTAGE | THREE PHASE 220~240 / 380~420VAC |
| RATED FREQUENCY | 50 / 60HZ |
| MOUNTING | – REFER GEAR UNIT VERSIONS |
Available versions:
– Foot-mounted or flange-mounted
– B5 or B14 Flange-mounted
– CZPT or hollow shaft
– Hollow shaft with keyed connection, shrink disc, splined hollow shaft or TorqLOC
Your advantages
– High power density
– Wear-free
– Long service life
– > 90% gear unit efficiency
– Multi-stage gear unit for low output speeds
– Two-stage or three-stage versions
– Reduced backlash option for three-stage version
Helical-bevel gear unit versions
| Version | Size 19, 29, 39, 49, 37, 47, 57, 67, 77, 87, 97, 107, 127, 157, 167, 187 |
| K.. ( Foot-mounted ) | K19, K29, K39, K49, K37, K47, K57, K67, K77, K87, K97, K107, K127, K157, K167, K187 |
| KA..B ( Foot-mounted / Hollow shaft ) | KA19B, KA29B, KA39B, KA49B, KA37B, KA47B, KA57B, KA67B, KA77B, KA87B, KA97B, KA107B, KA127B, KA157B, KA167B, KA187B |
| KV..B ( Foot-mounted / Hollow shaft / Splined hollow shaft ) | KV37B, KV47B, KV57B, KV67B, KV77B, KV87B, KV97B, KV107B, KV127B, KV157B, KV167B, KV187B |
| KH..B ( Foot-mounted / Hollow shaft / Shrink disk ) | KH19B, KH29B, KH39B, KH49B, KH37B, KH47B, KH57B, KH67B, KH77B, KH87B, KH97B, KH107B, KH127B, KH157B, KH167B, KH187B |
| KF.. ( B5 Flange-mounted ) | KF19, KF29, KF39, KF49, KF37, KF47, KF57, KF67, KF77, KF87, KF97, KF107, KF127, KF157, KF167, KF187 |
| KAF.. ( B5 Flange-mounted / Hollow shaft ) | KAF19, KAF29, KAF39, KAF49, KAF37, KAF47, KAF57, KAF67, KAF77, KAF87, KAF97, KAF107, KAF127, KAF157 |
| KVF.. ( B5 Flange-mounted / Hollow shaft / Splined hollow shaft ) | KVF37, KVF47, KVF57, KVF67, KVF77, KVF87, KVF97, KVF107, KVF127, KVF157, KVF167, KVF187 |
| KHF.. ( B5 Flange-mounted / Hollow shaft / Shrink disk ) | KHF19, KHF29, KHF39, KHF49, KHF37, KHF47, KHF57, KHF67, KHF77, KHF87, KHF97, KHF107, KHF127, KHF157, KHF167, KHF187 |
| KA.. ( Hollow shaft ) | KA37, KA47, KA57, KA67, KA77, KA87, KA97, KA107, KA127, KA157, KA167, KA187 |
| KV.. ( Hollow shaft / Splined hollow shaft ) | KV37, KV47, KV57, KV67, KV77, KV87, KV97, KV107, KV127, KV157, KV167, KV187 |
| KH.. ( Hollow shaft / Shrink disk ) | KH37, KH47, KH57, KH67, KH77, KH87, KH97, KH107, KH127, KH157, KH167, KH187 |
| KT.. ( Hollow shaft / TorqLOC ) | KT37, KT47, KT57, KT67, KT77, KT87, KT97, KT107, KT127, KT157, KT167, KT187 |
| KAZ.. ( B14 Flange-mounted / Hollow shaft ) | KAZ37, KAZ47, KAZ57, KAZ67, KAZ77, KAZ87, KAZ97, KAZ107, KAZ127, KAZ157, KAZ167, KAZ187 |
| KVZ.. ( B14 Flange-mounted / Hollow shaft / Splined hollow shaft ) | KVZ37, KVZ47, KVZ57, KVZ67, KVZ77, KVZ87, KVZ97, KVZ107, KVZ127, KVZ157, KVZ167, KVZ187 |
| KHZ.. ( B14 Flange-mounted / Hollow shaft / Shrink disk ) | KHZ37, KHZ47, KHZ57, KHZ67, KHZ77, KHZ87, KHZ97, KHZ107, KHZ127, KHZ157, KHZ167, KHZ187 |
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| Application: | Motor, Electric Cars, Motorcycle, Machinery, Agricultural Machinery |
|---|---|
| Gear Shape: | Bevel Gear |
| Type: | Worm Reducer |
| Samples: |
US$ 1/Set
1 Set(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What Is a Helical Gearbox?
Basically, a gearbox is a rotating circular machine part that consists of toothed components, which mesh together. Its function is to transfer speed and torque to other parts of the machine. It is also similar to a lever, and operates on the same principle.
Double helical gears
Having a helical gearbox has many advantages, including higher efficiency, high strength, and a superior gear system. However, it has its drawbacks. One of these drawbacks is the axial thrust. Axial thrust is not a problem with single helical gears, but it is a problem with double helical gears.
In double helical gears, there are two sets of teeth that are arranged in a V-shape. In one set of teeth, there is a groove that enables the axial force to be cancelled out. The groove eliminates the need for thrust bearings and allows for efficient handling of high capacity power transmission.
Aside from the axial thrust, there are also issues with face contact. Asymmetric load sharing and oscillation put substantial alternating loads on the shaft bearings. These alternating loads can lead to early bearing failure.
Fortunately, helical gears are smoother than spur gears, which means they can withstand more load. They also have greater pitch circle diameter than spur gears. However, they are limited in their scope. The pitch error distribution on the helical gears is typically limited to 50 mm peak-to-peak amplitude. It is important to control the phase difference of oncoming gears with high accuracy.
Typically, the helical gears that are used in a gear box are assembled from the same module. This allows for interchangeability of components and economical construction. A normal module set can use the same tooth-cutting tools that are used for spur gears.
Double helical gears are used in power transmission in fluid pumps and gas turbines. They are also commonly used in planetary reduction gear boxes for engines in civil aviation.
Generally, double helical gears are larger than single helical gears. They are typically generated from a special generator. They are also more expensive.
However, manufacturers are looking to find gears that are more convenient to use. One solution is to manufacture double helical gears on a multi-tasking machine tool. This allows the gear to be machined in complicated shapes.
The multi-tasking machine tool can also modify the tooth surface. This is useful for 3D printing helical gears with a high level of accuracy.
Crossed-axis helical gears
Several factors affect the performance of crossed-axis helical gears. One of the important factors is the position of the gears on the cross shaft. The gears will not perform properly if they are not oriented in a different direction.
Crossed-axis helical gears have a special situation, in which they will not function properly if the gears are oriented in the same direction. This is especially true for automobile oil pump/distribution shafts. Depending on the situation, gears will operate as a normal helical gear or as a spur gear.
Compared to spur gears, crossed-axis helical gears have relatively higher capacity. However, the transverse contact ratio of these gears is reduced. This decrease is dependent on the pressure angle. The pressure angle affects the curvature radii of the teeth. In addition, the length of the contact line is reduced. This shortens the efficiency of the gear.
Helix angle of crossed-axis helical gears is 45 degrees. It may be a left-handed or a right-handed gear. The pitch circle diameter of a helical gear may be big compared to that of a spur gear. This is due to the fact that the gears are cut at an angle to the shaft.
In the axial direction, the meshing of helical gears is very similar to spur gears. However, there are a few design rules to optimize these gears.
The first rule is that the gears must be staggered in opposite directions. If the gears are not staggered, the contact lines cannot be changed.
The second rule states that the pitch of a helical gear is dependent on its helix angle. It is possible to calculate the pitch circle of a helical gear, by integrating along the face width. In addition, the length of the contact lines decreases as the pressure angle increases. However, this decrease is not as large as that of a spur gear.
Right angle helical gears
Choosing a right angle helical gearbox can be difficult. With so many types, sizes, and configurations to choose from, it can be difficult to figure out which one is right for your application. The key to choosing the right gearbox is understanding your application and what factors are most important to you.
For example, if you are looking for a gearbox that can be used in a high-speed, high-torque application, the most important consideration is the efficiency of the product. Right-angle gearboxes are compact and easy to maintain, making them ideal for high-torque applications.
Some applications that require high-torque gears include pulp and paper manufacturing, food processing, mining, and car washes. Some of the advantages of right angle gears include high efficiency, low maintenance, and low noise. If you are in the market for a right angle helical gearbox, make sure to select a supplier that can provide you with a wide range of options.
Right-angle helical gearboxes come in several different bevel configurations. Spiral bevel gears require precision and are difficult to manufacture. However, they can be used interchangeably. Spiral miter gears are designed to rotate in the same direction as the input shaft, which helps ensure a smooth, direct transfer of power.
If you are considering a helical gearbox for a high-speed application, you will need to know your preferred input/output ratio. The standard ratios are 1:1 and 2:1. If you need a step-up ratio, you can install an additional output shaft opposite the input shaft.
Other benefits include lower running noise, superior strength, and durability. Because they are made of larger teeth, helical gears are less likely to wear out. Also, helical gears provide higher power carrying capacity.
To determine which type of right angle gearbox is best suited for your application, you should discuss your needs with your supplier. They should be able to offer a wide range of options, including custom solutions. They should also provide you with a list of past clients and online reviews.
To find a right angle helical gearbox that can meet your needs, it’s important to understand the various design features. For example, you should make sure that your gearbox has a self-locking capability, which means that the load cannot drive the worm. Having a self-locking gearbox also means that you do not need to install a braking system.
Spiral teeth
Using helical gearboxes to drive a motor car or truck is an efficient method of power transmission. However, the efficiency of this method depends on the helix angle of the gear. The helix angle is the angle that the gear teeth are cut at.
Helical gearboxes may be of different helix angles, depending on the specific gear set. The helix angle can vary between 15 and 30 degrees. This is important because the helix angle has a significant effect on the position of tooth contact. If the contact is not in a proper position, then there will be a large amount of vibration. This will affect the speed of the gear.
Helical gearboxes can be of two types: crossed axis and parallel axis. Crossed axis gears are usually used to connect parallel shafts. They have the same center gap as spur gears. On the other hand, parallel axis gears are usually used to drive a motor. The difference between the two types of gearboxes is their design and arrangement.
In addition to the helix angle, the gears may have different fillet, teeth, and radius. This means that the gear will have different NVH characteristics. In addition, there are different types of spiral teeth that may be used in the gearbox.
Hypoid gears are also similar to spiral bevel gears, but they differ in that the axes of the gear shaft do not intersect the axis of the hypoid gear. The hypoid gear exerts a very high thrust load on the bearings.
When compared to a straight bevel gear, the hypoid gear experience a smoother, less noisy operation. They also produce less shock loading.
Spiral bevel gears are also designed to produce less vibration. They are also more cost-effective. However, they require a larger diameter to transmit the same torque. This can lead to a reduced mechanical efficiency and lower fuel economy.
The best spiral bevel gears can carry a higher thrust load than straight teeth. This is why they are preferred for applications that require heavy load efficiency.
They are also appreciated for their NVH characteristics. They are also a quieter option for applications that require high speed. Helical gears can be used in many different industries. The food, automotive, and oil industries are examples of these types of gears.
editor by CX 2023-10-25
China OEM K Series Helical Bevel Gearbox with 220V/380V Geared Motor Explosion Proof Gear Speed Reducer supplier
Product Description
Helical Bevel Gear Motor (K Type)
|
Input Configurations |
Motor mounted | |
| IEC B5/B14 Motor Flange (AM Flange) | ||
| Servo Motor Flange (AQA Flange) | ||
| Shaft Input (AD connection) | ||
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Output Configurations |
Solid output shaft |
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Solid output shaft with flange |
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Hollow output shaft |
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Hollow output shaft with flange |
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Variants of the Helical Bevel Gear Unit Series K / KF / KA / KAF |
Foot- or flange-mounted |
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B5 or B14 flange-mounted |
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Solid shaft or hollow shaft |
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Hollow shaft with keyed connection, shrink disk, splined hollow shaft, or Torque Arm |
Technical Data:
| Housing material | Cast iron/Ductile iron |
| Housing hardness | HBS190-240 |
| Gear material | 20CrMnTi alloy steel |
| Surface hardness of gears | HRC58°~62 ° |
| Gear core hardness | HRC33~40 |
| Input / Output shaft material | 42CrMo alloy steel |
| Input / Output shaft hardness | HRC25~30 |
| Machining precision of gears | accurate grinding, 6~5 Grade |
| Lubricating oil | GB L-CKC220-460, Shell Omala220-460 |
| Heat treatment | tempering, cementiting, quenching, etc. |
| Efficiency | 94%~96% (depends on the transmission stage) |
| Noise (MAX) | 60~68dB |
| Temp. rise (MAX) | 40°C |
| Temp. rise (Oil)(MAX) | 50°C |
| Vibration | ≤20µm |
| Backlash | ≤20Arcmin |
| Brand of bearings | China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, NSK. |
| Brand of oil seal | NAK — ZheJiang or other brands requested |
Specification
|
Model |
Shaft Dia. mm |
Horizontal Center Height mm |
External Flange Dia. mm |
Power |
Ratio (i) |
Nominal Torque (Nm) |
|
|
Solid Shaft |
Hollow Shaft |
||||||
|
K/KF/KA/KAF37 |
ф25 |
ф30 |
100 |
160 |
0.12-2.2 |
8-102 |
180 |
|
K/KF/KA/KAF47 |
ф30 |
ф35 |
112 |
200 |
0.18-4 |
8-126 |
380 |
|
K/KF/KA/KAF57 |
ф35 |
ф40 |
132 |
250 |
0.25-5.5 |
8-143 |
580 |
|
K/KF/KA/KAF67 |
ф40 |
ф40 |
140 |
250 |
0.37-7.5 |
8-143 |
680 |
|
K/KF/KA/KAF77 |
ф50 |
ф50 |
180 |
300 |
0.75-11 |
8-175 |
1300 |
|
K/KF/KA/KAF87 |
ф60 |
ф60 |
212 |
350 |
1.5-18.5 |
8-197 |
2500 |
|
K/KF/KA/KAF97 |
ф70 |
ф70 |
265 |
450 |
2.2-30 |
8-197 |
3900 |
|
K/KF/KA/KAF107 |
ф90 |
ф90 |
315 |
450 |
4-45 |
8-197 |
6800 |
|
K/KF/KA/KAF127 |
ф110 |
ф100 |
375 |
550 |
7.5-90 |
8-197 |
11200 |
|
K/KF/KA/KAF157 |
ф120 |
ф120 |
450 |
660 |
11-110 |
8-198 |
11700 |
|
K/KF/KA/KAF167 |
ф160 |
ф135 |
500 |
– |
15-160 |
8-186 |
32000 |
|
K/KF/KA/KAF187 |
ф190 |
ф155 |
600 |
– |
18.5-200 |
8-186 |
50000 |
Company Profile
Packing
Scenarioes
FAQ
Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc.
Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection.
Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice.
Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on.
Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors.
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Foot/Flange Mounted |
| Layout: | Coaxial |
| Gear Shape: | Cylindrical Gear |
| Step: | Single-Step |
| Customization: |
Available
| Customized Request |
|---|
Helical Gearbox
Depending on the helical gearbox, it can be either Crossed-axis or Inline. Basically, helical gearboxes are composed of a set of toothed gears that mesh with other toothed parts to transmit torque and speed to other parts of the machine.
Right angle helical gearboxes
Choosing the right angle gearbox can be difficult. This is because the design and specifications will depend on the type of application. The right gearbox can make or break the efficiency of the system. For example, a right angle gearbox will need to be corrosion resistant if it is used in a washdown application. It may also require special grease for use in cold temperatures.
There are many different types of right angle gearboxes. The types include worm, hypoid, and spiral bevel gearboxes. The most common are worm gearboxes. These are a great option for applications that need high torque and power. However, they are not as efficient as spur gears.
Helical gearboxes are ideal for heavy-duty industrial applications such as conveyors, blowers, and elevators. They are quiet and have better speed capabilities than spur gears. They can handle larger loads because of their gradual engagement. They are also capable of adjusting the rotation angle by 90 degrees. They are also more efficient at high speeds.
Spiral bevel gearboxes require more precision to manufacture. They are also more expensive to produce. This is because the teeth need to be drilled and shaped to fit the shafts. The gearbox needs to be designed with tight tolerances and requires basic lubrication. Its operating cycle is long.
Helical gearboxes can be used in conjunction with other gearboxes. For example, the output shaft may be a hollow shaft, or it may be designed with dual counter-rotating shafts. They can also be designed to operate in either a clockwise or counter-clockwise direction.
Right angle gearboxes are ideal for high-speed applications. They require less maintenance than other industrial components. They may require corrosion resistant plating or stainless steel shafts. If you are considering a right angle gearbox, check with a distributor to see what types of products are available. A representative will be able to help you with installation. They may also offer custom gearbox solutions to fit your needs.
A gearbox is made up of four main components. These components include the input shaft, the output shaft, the gear, and the backlash.
Crossed-axis helical gears
Normally, helical gearboxes are used to increase torque between two rotating shafts. Compared to other types of gearboxes, helical gearboxes offer greater speed and power carrying capacity. They are also quieter and smoother in operation. These gearboxes are used in many industries such as food processing, plastic, rubber, and oil industries. These gears also have the advantage of being cheaper than spur gears.
These gears are designed with special teeth that are positioned at an angle to the face of the gear. As they rotate, the teeth engage gradually. They have longer teeth, which allow them to carry heavy loads. The contact area also increases as the gears rotate.
A cross axis helical gearbox is one of the most common types of gearboxes. This gearbox has an advantage over spur gears, since it uses bearings to support the thrust load. It can also adjust the rotation angle by 90 degrees. These gearboxes are typically used to drive automobile oil pump/distribution shafts. They are also used to drive blowers. They have a large thrust force.
The cross axis helical gearbox has the advantage of using bearings to support the thrust load. However, it also has the disadvantage of using a large amount of bearings. In addition, these gears are not suitable for speed reduction beyond 1:2.
Thermoplastic crossed axis helical gears are a convenient solution for high volume applications. These gears are self-locking and offer high torque. These gears are also very durable. They are also available in a variety of configurations and sizes. They are used in a wide range of industries, including the textile industry. The output torque of these gears is also very high.
Crossed helical gears are also used to transmit motion and power between perpendicular but non-intersecting shafts. To achieve this, two mating helical gears must have the same helix angle, pressure angle, and normal pitch. They should also be mounted on perpendicular but non-intersecting, parallel shafts.
To calculate the real radial pitch of a gear, the angle of cut is measured. The gear teeth are then cut at an angle to the face of the gear. The helix angle is also measured.
Inline helical gears
Unlike spur gears, helical gears have a large surface contact and are characterized by low noise and large torque. Moreover, helical gears also have a high degree of meshing performance. They are also compact and durable.
As the name suggests, helical gears are produced using hard steel teeth. They are also hobbed to ensure smooth running and accurate surface finish. In addition, all gearing is ground for increased efficiency.
Inline helical gearboxes are used in a number of applications, including waste water systems and in solvent extraction. They are also used in industries like power plants and food & tobacco. They have good efficiency and are low in cost. They also have interchangeability and high durability. They can be installed in a single piece aluminum alloy housing. They can also be foot mounted or flange mounted. They are available in single stage and three stage constructions.
Helical gearboxes are typically used in high-load applications, such as in cement and waste water systems. They are also suitable for industrial applications, including in manufacturing. They are also used in applications where there is a large speed variation range. They are suitable for a wide temperature range, from -10 degC to 40 degC.
A helical gearbox has a high degree of interchangeability, and can be installed with a wide range of motors. They are also available in flame proof versions. They can also be supplied with an integrated output flange. They have standard IEC inputs, making them easy to install and operate. They also have a removable inspection cover, which allows periodic inspection of gearing. They can also be supplied with integral mounting bases.
The transmission ratio of helical gearboxes is finely graded to meet different working conditions. They also have an output torque that ranges from 1.4-250. They are also available in a modular model, which allows them to be produced in an economical manner. They can also be installed with a standard IEC input, which makes them easy to fit with any IEC motor. They also have a permanent nameplate, which indicates the ratio and the output torque.
Helix angle
Using a helical gearbox is a more economical and efficient way of creating a gearbox. It is also beneficial for production because it allows for more interchangeable components. It can also be used in the oil and plastic industries. It has advantages over conventional gears because it runs quieter.
The helical gearbox is a type of gearbox that uses a helical cut on the teeth of the gears. It carries more surface contact than conventional gears, which increases the power carrying capacity. It is also more durable and quieter than conventional gears.
The helical gearbox is generally used in enclosed gear systems because it allows for higher tooth overlap and smoother performance. It also eliminates thrust forces. The helical gearbox can be made of two helical sections that are close together. It is common to use double helical gearboxes in enclosed gear systems. The gears can be ground and hardened.
The radial pitch of helical gears is about eight millimeters. In the helical gearbox, the radial pitch of the gears is the same as the pitch of the spur gears. Using the same tooth cutting tools, it is possible to make helical gears more economically.
The pitch of the helical gearbox will vary with the helix angle. Typically, the helix angle is between 15 and 30 degrees. The pitch will also change with the number of teeth in the spur gear. The pitch will increase when the number of teeth increases.
The pitch is also affected by the pressure angle of the tooth. The pressure angle affects the normal force and curvature radii. The length of the helical gear contact line decreases as the pressure angle increases. This can also be seen when considering contact on the tooth surface. The helix angle is also important when calculating the forces between the helical gears.
It is important to understand that helical gears generate axial forces within the gear-mesh. These forces need to be supported by bearings. They also generate heat. This heat is also detrimental to the efficiency of the gear. It can also cause power loss.
editor by CX 2023-05-10
China Hot selling K Series Helical Bevel Gearbox with 220V/380V Geared Motor Explosion Proof Gear Speed Reducer helical gearbox assembly
Product Description
Helical Bevel Gear Motor (K Type)
|
Input Configurations |
Motor mounted | |
| IEC B5/B14 Motor Flange (AM Flange) | ||
| Servo Motor Flange (AQA Flange) | ||
| Shaft Input (AD connection) | ||
|
Output Configurations |
Solid output shaft |
|
|
Solid output shaft with flange |
||
|
Hollow output shaft |
||
|
Hollow output shaft with flange |
||
|
Variants of the Helical Bevel Gear Unit Series K / KF / KA / KAF |
Foot- or flange-mounted |
|
|
B5 or B14 flange-mounted |
||
|
Solid shaft or hollow shaft |
||
|
Hollow shaft with keyed connection, shrink disk, splined hollow shaft, or Torque Arm |
Technical Data:
| Housing material | Cast iron/Ductile iron |
| Housing hardness | HBS190-240 |
| Gear material | 20CrMnTi alloy steel |
| Surface hardness of gears | HRC58°~62 ° |
| Gear core hardness | HRC33~40 |
| Input / Output shaft material | 42CrMo alloy steel |
| Input / Output shaft hardness | HRC25~30 |
| Machining precision of gears | accurate grinding, 6~5 Grade |
| Lubricating oil | GB L-CKC220-460, Shell Omala220-460 |
| Heat treatment | tempering, cementiting, quenching, etc. |
| Efficiency | 94%~96% (depends on the transmission stage) |
| Noise (MAX) | 60~68dB |
| Temp. rise (MAX) | 40°C |
| Temp. rise (Oil)(MAX) | 50°C |
| Vibration | ≤20µm |
| Backlash | ≤20Arcmin |
| Brand of bearings | China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, NSK. |
| Brand of oil seal | NAK — ZheJiang or other brands requested |
Specification
|
Model |
Shaft Dia. mm |
Horizontal Center Height mm |
External Flange Dia. mm |
Power |
Ratio (i) |
Nominal Torque (Nm) |
|
|
Solid Shaft |
Hollow Shaft |
||||||
|
K/KF/KA/KAF37 |
ф25 |
ф30 |
100 |
160 |
0.12-2.2 |
8-102 |
180 |
|
K/KF/KA/KAF47 |
ф30 |
ф35 |
112 |
200 |
0.18-4 |
8-126 |
380 |
|
K/KF/KA/KAF57 |
ф35 |
ф40 |
132 |
250 |
0.25-5.5 |
8-143 |
580 |
|
K/KF/KA/KAF67 |
ф40 |
ф40 |
140 |
250 |
0.37-7.5 |
8-143 |
680 |
|
K/KF/KA/KAF77 |
ф50 |
ф50 |
180 |
300 |
0.75-11 |
8-175 |
1300 |
|
K/KF/KA/KAF87 |
ф60 |
ф60 |
212 |
350 |
1.5-18.5 |
8-197 |
2500 |
|
K/KF/KA/KAF97 |
ф70 |
ф70 |
265 |
450 |
2.2-30 |
8-197 |
3900 |
|
K/KF/KA/KAF107 |
ф90 |
ф90 |
315 |
450 |
4-45 |
8-197 |
6800 |
|
K/KF/KA/KAF127 |
ф110 |
ф100 |
375 |
550 |
7.5-90 |
8-197 |
11200 |
|
K/KF/KA/KAF157 |
ф120 |
ф120 |
450 |
660 |
11-110 |
8-198 |
11700 |
|
K/KF/KA/KAF167 |
ф160 |
ф135 |
500 |
– |
15-160 |
8-186 |
32000 |
|
K/KF/KA/KAF187 |
ф190 |
ф155 |
600 |
– |
18.5-200 |
8-186 |
50000 |
Company Profile
Packing
Scenarioes
FAQ
Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc.
Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection.
Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice.
Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on.
Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors.
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Foot/Flange Mounted |
| Layout: | Coaxial |
| Gear Shape: | Cylindrical Gear |
| Step: | Single-Step |
| Customization: |
Available
| Customized Request |
|---|
Advantages of a Helical Gearbox
Usually helical gearboxes are used for industrial purposes. They are usually found in power generation units, where the input of energy is converted into output. There are several different types of helical gearboxes, including spiral and herringbone. You should familiarize yourself with the different types before choosing one for your project.
Helix angle
Generally, the angle between a gear tooth and its shaft axis is called the helix angle. This angle is important in motion conversion and power transfer. It is not to be confused with the lead angle, which is used to reference a line perpendicular to the axis of the gear.
The helical gearbox is used in several industrial applications. The oil and sugar industries, blowers, and feeders are among those that utilize helical gears. They are smoother than spur gears, and they also have quieter operation.
Helical gearboxes can be made modularly. This allows for more economical construction and interchangeability of components. These gearboxes are also used in enclosed gear systems. In a helical gearbox, each section of the box must stagger in a different direction. This helps in maintaining the integrity of the component.
Helical gears can be used in applications that require a high degree of quality control. This is necessary to minimize the effects of wear and tear. The use of extreme pressure lubricants is recommended for helical gears that operate at right angles. However, these are not recommended for bronze gears.
Besides the helix angle, the contact ratio also affects the performance of the gear. The more surface contact between the teeth, the greater the sliding. The heat produced is also detrimental to performance. It is necessary to use a lubricant that will reduce friction between the tooth surfaces. Proper lubrication reduces wear and minimizes heat.
When determining the optimum helix angle for a gear, it is important to consider the diameter of the gear. Helical gears have a minimum helix angle of 15 to 30 degrees. A higher helix angle increases the axial force generated by the gear, and a lower helix angle increases the contact stress.
Spiral gears
Using spiral gears in a helical gearbox offers several advantages, including smoothness and quiet operation. In addition, helical gearboxes are highly effective and can tolerate more load. Spiral gears are also more cost effective. However, they are more difficult to produce.
Helical gears are similar to spur gears in that they have teeth at an angle. However, the helix angle of the teeth in a helical gear is not fixed. This angle affects the position of the tooth’s contact with the mating gear. It also affects the normal force of the teeth.
The helix angle of the gear’s teeth is also dependent on the direction of rotation of the gear. For example, a spiral gear with a helix angle of 15 degrees is usually perpendicular to the axis of the gear. Similarly, a helical gear with a helix angle of 30 degrees is usually oblique to the axis of the gear.
Helical gears also provide a method for connecting shafts that are not parallel. These gears are usually used in industries such as conveyors, food industries, plastic industries, and oil industries. The main advantage of helical gears is that they are smoother than spur gears. However, the downside is higher wear and friction.
Helical gears are also used to transmit motion between parallel shafts. Helical gears are also used in high-load applications. This makes them a good choice for heavy-duty applications.
Helical gears are also superior to spur gears in load carrying capacity. Helical gears are smoother and quieter than spur gears. However, they also have a higher friction factor. In addition, they require special hobbing cutters.
Helical gears can also be classified according to their reference section in the standard plane. The center gap of helical gears with a reference section in the turning plane is the same as that of spur gears.
Herringbone gears
Among the different types of gearboxes, the helical gearbox is one of the most common. It is widely used in industrial applications, such as geared motors, worm gearboxes, and planetary gear trains.
A helical gear is a directional gear with a vertical axis. Its unique feature is the helix angle, which is the angle of the helix on the indexing cylindrical surface. The helix angle is set to a value of eight to fifteen degrees in design. The real radial pitch, which is the pitch of the gear when it rotates clockwise, varies with the helix angle.
Helical gears are classified according to the reference section in the turning and standard planes. Helical gears with a reference section in the standard plane have the same number of teeth as spur gears. On the other hand, helical gears with a reference section in a turning plane have the same center gap as spur gears.
The main advantage of helical gears is the high power-to-weight ratio. Aside from that, they are compact and have good meshing performance.
Another advantage is their high torque carrying capacity. This can be achieved by increasing the helix angle. The larger the helix angle, the smoother the gear’s motion. Moreover, the larger the helix angle, the larger the coincidence degree. This is useful in applications with high shock and vibration.
The production process for herringbone gears is more difficult and expensive than the other types. It is difficult to cut and shape herringbone gears. A simple gear hobbing machine is not suitable for this type of gear. However, the milling process can be used to process some herringbone gears.
Some of the problems related to herringbone gears are a lack of axial load, high friction and the interference of axial component forces. The meshing of teeth in herringbone gears can help reduce these problems.
Noise, vibration & harshness (NVH) characteristics
NVH testing is an important aspect of new driveline product development. It is typically performed during passenger car development, and is used for quality assurance of exterior and interior noise. This is an important topic in hybrid vehicles and electric vehicles, and continues to grow as the automotive industry expands.
A typical NVH test involves a rolling road dynamometer and signals are recorded and stored on a hard disk. These are then processed to produce variation distributions. Among other things, a lumped parameter system dynamics model was developed to run large size DOE studies efficiently.
Among the many components in the NVH chain, the bevel gear plays a major role in the final drive. Its characteristics are complex and time-varying, but they are important enough to be studied.
A new bevel gear OTE calculation method will be discussed in this paper. It is important to note that the NVH performance of an electric drive helical gear transmission system can be improved by thermal deformation of the bearing. It is also possible to achieve robust NVH performance in aluminum axle design by optimizing gear design, bearing optimization, and driveline system dynamics.
The gear train also has some lesser-known NVH performance characteristics. It is known that a gear train is an excitation source, and this is the topic of another study. It is also important to note that a helical gear system will exhibit non-linear behaviors when it changes working speed.
Applications
Compared to spur gears, helical gears offer greater load carrying capacity and smoother operation. They are also quieter, as the gears have larger teeth. These are the main reasons for their widespread use.
The main difference between helical gears and spur gears is the way teeth are cut. Teeth in helical gears are cut at an angle, in order to allow more teeth to interact in the same direction. This reduces shock loads and vibration. Helical gears are also much more durable than spur gears.
Helical gears can be used in a variety of applications. They are often chosen over spur gears for applications that require non-parallel shafts. They are also popular in the printing industry, the plastics industry, and the cement industry. They can also be used in conveyors and coolers.
Helical gears are made of a material that provides excellent durability, corrosion resistance, and a strong working load. They are also less expensive to produce. They are attached to a shaft using a press fit or adhesive. The attachment method can be a hub or an integral shaft.
Helical gears are also produced in a radial module form. This is the most economical option. This allows helical gears to be manufactured in a compact format. It also ensures that the bearing positioning requirements are met.
Helical gears are also produced with special grinding stones. These are needed for every helix angle. The helix angle determines the real radial pitch. This also affects the normal force of the tooth.
When mating helical gears to parallel shafts, they are right-handed. These gears can be made with a normal module set or by using special hobbing tools.
editor by CX 2023-05-09
China Standard Hot Selling K Series Helical Gear Units Bevel Geared Motor Gearbox helical gearbox diagram
Product Description
Product Description
Product Description
-K Series Helical Bevel Gearbox
Product Features
1. Input mode: Coupled motor, belted motor, input shaft or connection flange.
2. Output: Right angle
3. Compact structure. Rigid tooth face. Carrying greater torque, high loading capacity.
4.High precision gear, ensuring the unit to operate stably, smooth transmission.
5. Low noise, long lifespan. Large overlap coefficient, abrasion resistant.
Product Parameters
1. Technical data
| Size | 38 | 48 | 58 | 68 | 78 | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Structure | K KA KF KAF KAZ KAT KAB | |||||||||||
| Input power rating(kw) | 0.18~3 | 0.18~3 | 0.18~5.5 | 0.18~5.5 | 0.37~11 | 0.75~22 | 1.3~30 | 3~45 | 7.5~90 | 11~160 | 11~200 | 18.5~200 |
| Ratio | 5.36~ 106.38 |
5.81~ 131.87 |
6.57~ 145.15 |
7.14~4 4.79 |
7.22~ 192.18 |
7.19~ 197.27 |
8.95~ 175.47 |
8.74~ 141.93 |
8.68~ 146.07 |
12.66~ 150.03 |
17.35~ 164.44 |
17.97~ 178.37 |
| Maximum Torque(N.m) | 200 | 400 | 600 | 820 | 1550 | 2770 | 4300 | 8000 | 13000 | 18000 | 32000 | 50000 |
| Weight | 11 | 20 | 27 | 33 | 57 | 85 | 130 | 250 | 380 | 610 | 1015 | 1700 |
2: Design option
| K series gear units are available in the following designs | |
| KAZ..Y.. | Short-flange-mounted helical-bevel gear units with hollow shaft |
| K…Y… | Foot-mounted helical-bevel gear units with CZPT shaft |
| KAT…Y… | Torque-arm-mounted helical-bevel gear units with hollow shaft |
| KAB…Y… | Foot-mounted helical-bevel gear units with hollow shaft |
| K(KF,KA,KAF,KAB,KAZ)S… | Shaft input helical-bevel gear units |
| KA…Y… | Helical-bevel gear units with hollow shaft |
| KA(K, KF ,KAF, KAB ,KAZ)R..Y… | Combinatorial helical-bevel gear units |
| KF…Y… | Flange-mounted helical-bevel gear units with CZPT shaft |
| KA(K, KF ,KAF ,KAZ)S…R… | Shaft input combinatorial helical-bevel gear units |
| KAF…Y… | Flange-mounted helical-bevel gear units with hollow shaft |
| KA(K, KF ,KAF, KAB ,KAZ)…Y… | When equipping the user’s motor or the special 1 ,the flange is required to be connected |
Materials Data Sheet
|
Housing material |
Grey Cast iron |
|
Housing hardness |
HBS163~255 |
|
Gear material |
20CrMnTi alloy steel |
|
Surface hardness of gears |
HRC58°~62 ° |
|
Gear core hardness |
HRC33~48 |
|
Input / Output shaft material |
40Cr alloy steel |
|
Input / Output shaft hardness |
HRC32~36 |
|
Machining precision of gears |
accurate grinding, 6~5 Grade |
|
Lubricating oil |
GB L-CKC220-460, Shell Omala220-460 |
|
Heat treatment |
tempering, cementiting, quenching, normalizing, etc. |
|
Efficiency |
94%~96% (depends on the transmission stage) |
|
Noise (MAX) |
60~68dB |
|
Temp. rise (MAX) |
40°C |
|
Temp. rise (Oil)(MAX) |
50°C |
|
Vibration |
≤20µm |
|
Backlash |
≤20Arcmin |
|
Brand of bearings |
China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, SKF, FAG, INA, NSK. |
|
Brand of oil seal |
NAK — ZheJiang or other brands requested |
Detailed Photos
Our process of production
Our product line
Company Profile
Company Profile
Bode was founded in 2007, which is located in HangZhou city, ZHangZhoug province. As 1 professional manufacturer and exporter, we have more than 17 years’ experience in R & D of worm reducer, gear reducer, gearbox , AC motor and relative spare parts. We have factory with advanced production and test equipment, the strong development of team and producing capacity offer our customers with high quality products. Our products widely served to various industries of Metallurgy, Chemicals, lifting, mining, Petroleum, textile, medicine, wooden etc. Main markets: China, Africa, Australia, Vietnam, Turkey, Japan, Korea, Philippines… Welcome to ask us any questions, good offer always for you for long term business.
FAQ
Q1: Are you trading company or manufacturer?
A: We are factory.
Q2: What kinds of gearbox can you produce for us?
A: Main products of our company: R, S, K, F series helical-tooth reducer, RV series worm gear reducer,H Series Parallel Shaft Helical Reduction Gear Box
Q3: Can you make as per custom drawing?
A: Yes, we offer customized service for customers.
Q4: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
Q5: What information shall we give before placing a purchase order?
A: a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.
Q6: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
Q7: What is your terms of payment ?
A: 30% Advance payment by T/T after signing the contract.70% before delivery
If you are interested in our product, welcome to contact with us.
Our team will do our best to meet your need 🙂
| Application: | Motor, Machinery, Marine, Agricultural Machinery |
|---|---|
| Function: | Distribution Power, Change Drive Torque, Speed Changing, Speed Reduction |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Step: | Three-Step |
| Samples: |
US$ 90/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
What Is a Helical Gearbox?
Basically, a gearbox is a rotating circular machine part that consists of toothed components, which mesh together. Its function is to transfer speed and torque to other parts of the machine. It is also similar to a lever, and operates on the same principle.
Double helical gears
Having a helical gearbox has many advantages, including higher efficiency, high strength, and a superior gear system. However, it has its drawbacks. One of these drawbacks is the axial thrust. Axial thrust is not a problem with single helical gears, but it is a problem with double helical gears.
In double helical gears, there are two sets of teeth that are arranged in a V-shape. In one set of teeth, there is a groove that enables the axial force to be cancelled out. The groove eliminates the need for thrust bearings and allows for efficient handling of high capacity power transmission.
Aside from the axial thrust, there are also issues with face contact. Asymmetric load sharing and oscillation put substantial alternating loads on the shaft bearings. These alternating loads can lead to early bearing failure.
Fortunately, helical gears are smoother than spur gears, which means they can withstand more load. They also have greater pitch circle diameter than spur gears. However, they are limited in their scope. The pitch error distribution on the helical gears is typically limited to 50 mm peak-to-peak amplitude. It is important to control the phase difference of oncoming gears with high accuracy.
Typically, the helical gears that are used in a gear box are assembled from the same module. This allows for interchangeability of components and economical construction. A normal module set can use the same tooth-cutting tools that are used for spur gears.
Double helical gears are used in power transmission in fluid pumps and gas turbines. They are also commonly used in planetary reduction gear boxes for engines in civil aviation.
Generally, double helical gears are larger than single helical gears. They are typically generated from a special generator. They are also more expensive.
However, manufacturers are looking to find gears that are more convenient to use. One solution is to manufacture double helical gears on a multi-tasking machine tool. This allows the gear to be machined in complicated shapes.
The multi-tasking machine tool can also modify the tooth surface. This is useful for 3D printing helical gears with a high level of accuracy.
Crossed-axis helical gears
Several factors affect the performance of crossed-axis helical gears. One of the important factors is the position of the gears on the cross shaft. The gears will not perform properly if they are not oriented in a different direction.
Crossed-axis helical gears have a special situation, in which they will not function properly if the gears are oriented in the same direction. This is especially true for automobile oil pump/distribution shafts. Depending on the situation, gears will operate as a normal helical gear or as a spur gear.
Compared to spur gears, crossed-axis helical gears have relatively higher capacity. However, the transverse contact ratio of these gears is reduced. This decrease is dependent on the pressure angle. The pressure angle affects the curvature radii of the teeth. In addition, the length of the contact line is reduced. This shortens the efficiency of the gear.
Helix angle of crossed-axis helical gears is 45 degrees. It may be a left-handed or a right-handed gear. The pitch circle diameter of a helical gear may be big compared to that of a spur gear. This is due to the fact that the gears are cut at an angle to the shaft.
In the axial direction, the meshing of helical gears is very similar to spur gears. However, there are a few design rules to optimize these gears.
The first rule is that the gears must be staggered in opposite directions. If the gears are not staggered, the contact lines cannot be changed.
The second rule states that the pitch of a helical gear is dependent on its helix angle. It is possible to calculate the pitch circle of a helical gear, by integrating along the face width. In addition, the length of the contact lines decreases as the pressure angle increases. However, this decrease is not as large as that of a spur gear.
Right angle helical gears
Choosing a right angle helical gearbox can be difficult. With so many types, sizes, and configurations to choose from, it can be difficult to figure out which one is right for your application. The key to choosing the right gearbox is understanding your application and what factors are most important to you.
For example, if you are looking for a gearbox that can be used in a high-speed, high-torque application, the most important consideration is the efficiency of the product. Right-angle gearboxes are compact and easy to maintain, making them ideal for high-torque applications.
Some applications that require high-torque gears include pulp and paper manufacturing, food processing, mining, and car washes. Some of the advantages of right angle gears include high efficiency, low maintenance, and low noise. If you are in the market for a right angle helical gearbox, make sure to select a supplier that can provide you with a wide range of options.
Right-angle helical gearboxes come in several different bevel configurations. Spiral bevel gears require precision and are difficult to manufacture. However, they can be used interchangeably. Spiral miter gears are designed to rotate in the same direction as the input shaft, which helps ensure a smooth, direct transfer of power.
If you are considering a helical gearbox for a high-speed application, you will need to know your preferred input/output ratio. The standard ratios are 1:1 and 2:1. If you need a step-up ratio, you can install an additional output shaft opposite the input shaft.
Other benefits include lower running noise, superior strength, and durability. Because they are made of larger teeth, helical gears are less likely to wear out. Also, helical gears provide higher power carrying capacity.
To determine which type of right angle gearbox is best suited for your application, you should discuss your needs with your supplier. They should be able to offer a wide range of options, including custom solutions. They should also provide you with a list of past clients and online reviews.
To find a right angle helical gearbox that can meet your needs, it’s important to understand the various design features. For example, you should make sure that your gearbox has a self-locking capability, which means that the load cannot drive the worm. Having a self-locking gearbox also means that you do not need to install a braking system.
Spiral teeth
Using helical gearboxes to drive a motor car or truck is an efficient method of power transmission. However, the efficiency of this method depends on the helix angle of the gear. The helix angle is the angle that the gear teeth are cut at.
Helical gearboxes may be of different helix angles, depending on the specific gear set. The helix angle can vary between 15 and 30 degrees. This is important because the helix angle has a significant effect on the position of tooth contact. If the contact is not in a proper position, then there will be a large amount of vibration. This will affect the speed of the gear.
Helical gearboxes can be of two types: crossed axis and parallel axis. Crossed axis gears are usually used to connect parallel shafts. They have the same center gap as spur gears. On the other hand, parallel axis gears are usually used to drive a motor. The difference between the two types of gearboxes is their design and arrangement.
In addition to the helix angle, the gears may have different fillet, teeth, and radius. This means that the gear will have different NVH characteristics. In addition, there are different types of spiral teeth that may be used in the gearbox.
Hypoid gears are also similar to spiral bevel gears, but they differ in that the axes of the gear shaft do not intersect the axis of the hypoid gear. The hypoid gear exerts a very high thrust load on the bearings.
When compared to a straight bevel gear, the hypoid gear experience a smoother, less noisy operation. They also produce less shock loading.
Spiral bevel gears are also designed to produce less vibration. They are also more cost-effective. However, they require a larger diameter to transmit the same torque. This can lead to a reduced mechanical efficiency and lower fuel economy.
The best spiral bevel gears can carry a higher thrust load than straight teeth. This is why they are preferred for applications that require heavy load efficiency.
They are also appreciated for their NVH characteristics. They are also a quieter option for applications that require high speed. Helical gears can be used in many different industries. The food, automotive, and oil industries are examples of these types of gears.
editor by CX 2023-04-19
China Gphq K Series Right Angle Helical-Bevel Gear Motor Geared Reducer Gearbox for Breweries bevel helical gearbox assembly
Item Description
K 90 degree bevel gear reducer motor
K helical pace gearbox motor is designed based on modularization, which carry several distinction types of mixtures, mounting kinds, and construction types. The depth classification of ratio can satisfy different of functioning condition. Substantial Transmission efficiency, low power use, outstanding functionality. The hard tooth floor equipment use the higher good quality alloy steel, the method of carburizing and quenching, grinding ,which give it pursuing characters: Stable transmission, reduced noise and temperature, higher loading, extended functioning lifestyle.
GPHQ K helical bevel equipment box motor supplies :
| housing content: | HT2OO high-toughness forged iron or HT250 Higher toughness forged iron |
| Gear content: | 20CrMnTi |
| Housing hardness | HBS90-240 |
| Area hardness of equipment | HRC58°-62° |
| Gear main hardness | HRC33°-40° |
| Input/Output shaft substance | 40Cr |
| Input/Output shaft hardness | HBS241°-286° |
| Shaft at oil seal place hardness | HRC48 ° -fifty five ° |
| Machining precision of gears substance | Exact grinding 6-5 quality |
| Efficiency | up to ninety eight% |
| Noise(Max) | 60-68dB |
| Temp.increase: | 40°C |
| Vibration | ≤20um |
| Motor | IP54, F course ,B5 FLANGE |
| coloration : | blue (if you want big quantity ,we can carried out as your wished colour ) |
Our reduction geared motor Gain
1,affordable value with excellent quality
2,shipping and delivery in time
three,risk-free ,trustworthy ,affordable and durable
four,steady transmission ,tranquil operation
five,sleek managing and low noise
6,great visual appeal ,sturdy provider life
7,higher warmth-radiating performance ,large carrying ability
8,every single gearbox have to be examined just before packing
9.reply in high performance for the duration of 1 functioning day
10. skilled to produce gearbox and electric motor .
If there is any issue, please never hesitate to speak to with me (EVA), U can send us your inquiry. And you will get reaction in 1 doing work working day.
MOTOR CATALOGUE :
CERTIFICATION :
Generating Procedure:
Deal :
for 1 container, right loading ,for considerably less, all products with pallet.
FAQ
1, Q:what’s your MOQ for ac gearbox motor ?
A: 1pc is ok for every sort electric gear box motor
2, Q: What about your guarantee for your induction pace reducer motor ?
A: 1 calendar year ,but other than gentleman-manufactured ruined
three, Q: which payment way you can acknowledge ?
A: TT, western union .
four, Q: how about your payment way ?
A: a hundred%payment in innovative less $5000 ,30% payment in innovative payment , 70% payment before sending in excess of $5000.
5, Q: how about your packing of speed reduction motor ?
A: plywood case ,if dimension is tiny ,we will pack with pallet for considerably less 1 container
six, Q: What data ought to be offered, if I get electric powered helical geared motor from you ?
A: rated electricity, ratio or output velocity,kind ,voltage , mounting way , quantity , if far more is better ,
|
US $50-5,000 / Piece | |
5 Pieces (Min. Order) |
###
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Function: | Speed Changing, Speed Reduction |
| Layout: | Bevel |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Double-Step |
###
| Customization: |
Available
|
|---|
###
| housing material: | HT2OO high-strength cast iron or HT250 High strength cast iron |
| Gear material: | 20CrMnTi |
| Housing hardness | HBS90-240 |
| Surface hardness of gear | HRC58°-62° |
| Gear core hardness | HRC33°-40° |
| Input/Output shaft material | 40Cr |
| Input/Output shaft hardness | HBS241°-286° |
| Shaft at oil seal position hardness | HRC48 ° -55 ° |
| Machining precision of gears material | Accurate grinding 6-5 grade |
| Efficiency | up to 98% |
| Noise(Max) | 60-68dB |
| Temp.rise: | 40°C |
| Vibration | ≤20um |
| Motor | IP54, F class ,B5 FLANGE |
| color : | blue (if you need big quantity ,we can done as your wanted color ) |
|
US $50-5,000 / Piece | |
5 Pieces (Min. Order) |
###
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Function: | Speed Changing, Speed Reduction |
| Layout: | Bevel |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Double-Step |
###
| Customization: |
Available
|
|---|
###
| housing material: | HT2OO high-strength cast iron or HT250 High strength cast iron |
| Gear material: | 20CrMnTi |
| Housing hardness | HBS90-240 |
| Surface hardness of gear | HRC58°-62° |
| Gear core hardness | HRC33°-40° |
| Input/Output shaft material | 40Cr |
| Input/Output shaft hardness | HBS241°-286° |
| Shaft at oil seal position hardness | HRC48 ° -55 ° |
| Machining precision of gears material | Accurate grinding 6-5 grade |
| Efficiency | up to 98% |
| Noise(Max) | 60-68dB |
| Temp.rise: | 40°C |
| Vibration | ≤20um |
| Motor | IP54, F class ,B5 FLANGE |
| color : | blue (if you need big quantity ,we can done as your wanted color ) |
NVH Characteristics of Helical Gearbox
Typically, a helical gearbox is used in the transmission of torque, speed, or both. Its primary function is to rotate a circular machine part while simultaneously meshing with other toothed parts. It operates on the same principle as a lever.
Typical applications
Typical applications of helical gearboxes include conveyors, blowers, and elevators. They are also used in the construction of plastics and rubber. Their basic benefits include reduced vibration, lower noise levels, and high load carrying capacity. They are also known to be more durable and quiet than spur gears.
There are several factors that should be taken into consideration when choosing the right gear set for a particular application. These include power requirements, torque requirements, and the environment in which it will operate. Also, bearings and lubricants will need to be considered.
Helical gears are used for heavy load applications, as they provide a high load-carrying capacity. They also are less expensive than spur gears. However, their efficiency is lower than spur gears. This is due to the fact that helical gears have larger teeth. They also have a lower dynamic load than spur gears. This reduces wear and tear on the gears.
Helical gears are also used in high-speed applications. They can also be used with non-parallel shafts. They are typically chosen over spur gears for non-parallel applications. However, helical gears are prone to misalignment due to axial thrust. This can be corrected by adjusting the bearing position.
Helical gears can also be used as power transmitting gears. They are commonly used in transmissions in the automotive industry. They are also used in a wide range of other industrial applications. These include blowers, feeders, coolers, and conveyors. They can also be used in the food and oil industries.
The most common types of helical gearboxes are single and double helical gearboxes. Single helical gears have one helical section that is parallel to the axis. Those with a circular arc curved tooth are also available.
NVH characteristics
NVH characteristics of helical gearbox are a major consideration in the development of new driveline products. NVH can be quantified using wavelet analysis, order analysis and statistical energy analysis. These techniques are typically used in the frequency domain, but can also be used in the real time domain.
The most basic NVH method uses a modal analysis to quantify the transmission noise. Simplified models use sinusoidal stiffness variations, but can also be used to study special effects.
One of the most important aspects of NVH is the integrity of the signal chain. The signal chain is affected by the gear meshing impact and the main transmission housing excitation. The first step in quantifying NVH is to establish a signal chain. This can be done by comparing the signals that are recorded on an analog to digital converter or hard disk. Then, using fast Fourier transforms, signals are converted from the time domain into the frequency domain.
For NVH analysis, it is important to obtain a representative prototype of the production vehicle. This is necessary early in the design phase, as changes to the final product often require substantial design modifications.
For helical gearboxes, the main benefit of reverse module configuration is that the radial type gearbox is more economical to produce. The radial type gearbox uses the same tooth-cutting tools as a spur gear, but can be produced more economically.
The basic characteristics of helical gears are that they have more surface contact and are more powerful in their carrying capacity. Because of this, the helical gearbox is typically used for high-load applications. However, helical gearboxes tend to produce lower efficiencies than spur types.
Thermal deformation of bearings can also change NVH characteristics of a helical gear transmission system. In this study, the effects of bearing temperature rise on the nonlinear dynamic characteristics of a helical gear system are investigated.
Helix
Compared to conventional gears, helical gears have more surface contact and produce less noise. These gears are a great choice for home and light industrial applications, especially where high-efficiency is required.
Helical gears produce axial thrust force through a special lubricant. They are used in different industries, such as automotive, oil, food, plastic, and textile. They are also used in blowers, feeders, and geared motors.
In helical gears, there is a special tooth at an angle to the axis of rotation. This tooth retains contact while the gear rotates into full engagement. Typically, the angle between the helix and the axis of rotation is 15 to 30 degrees. This angle is important for determining the number of teeth.
Compared to a straight cut gear, a helical gear has a higher power to weight ratio. This means that the helical gear can accommodate a higher load.
Helical gears are typically paired, with each gear containing a v-shaped tooth. The v-shaped tooth is designed to allow for a greater contact ratio, while maintaining an acceptable minimum amount of bottom clearance. However, the tooth tip may fracture if it is too thin.
A mathematical definition of the helix angle is important for the design of a helical gear. The helix angle is defined in the section on geometry of helical gear teeth.
The angle between the helix and the axial axis of rotation is used to calculate the axial contact ratio of a gear. This ratio is defined as the sum of the total number of contact lines, or teeth. If the overlap ratio of a gear pair is zero, then the axial contact ratio is also zero.
A helical gearbox can be a highly efficient transmission system, but may suffer from transmission error. This is the result of the axial thrust force, which is dissipated when it enters contact with an opposing tooth. To minimize the amount of power loss in a helical gear box, several approaches have been developed.
Transverse and normal planes of the teeth
Generally, helical gear teeth have two planes: the transverse and normal planes. The normal plane is perpendicular to the pitch plane. The transverse plane is perpendicular to the axial plane.
When a tooth is in contact, the load is normal to the surface at the contact point. This is known as the pressure angle. This angle is a function of the tooth’s radial position on the shaft axis. The angle can also be used to describe the shape of a tooth.
In helical gears, the normal pressure angle is the angle of the load line into the plane normal to the tooth axis. It is important to know the pressure angle when calculating the forces in a helical gear pair. This angle is usually between 15 and 30 degrees.
The helical gearbox is the most widely used gearbox. It consists of a set of helical gears connected by parallel shafts. It is also used in blowers, textile, sugar, and marine applications. It has a higher contact level and less vibration than conventional gears.
Helical gears can be used in feeders, blowers, and rubber and plastic applications. They are quieter than conventional gears, which is especially important in the food industry. They also transfer larger loads. They are also durable and can be used in blowers.
Helical gears have a slanted tooth trace. They are less noisy than conventional gears, which makes them ideal for marine applications. They also transmit rotation smoothly. They have an effective axial thrust force and transmit less vibration. They are used in many industrial applications, including the oil industry and the food industry.
Helical gears on non-parallel shafts have two major circles: the pitch circle and the root diameter. These circles can be different, so different tooth shapes can be used in the radial module system.
Impact of external thrust on helical gears
Considering that gearboxes are often a key component of power transmissions, the impact of external thrust on gearboxes has been investigated. This paper presents a theoretical model, accompanied by experimental measurements. In particular, this paper focuses on the effects of the thrust collar on the transfer path.
The thrust collar has been successfully proven to reduce the axial thrust between helical gears. It also reduces the acoustic impact of the gearbox by attenuating the radiated sound power. This has been accomplished by incorporating a sound damping mechanism that includes Rayleigh damping. The oil film that surrounds the thrust collar is another damping element.
In addition to reducing gearbox vibration, the oil film damping may attenuate coupled degrees of freedom. To test this, a theoretical model of a gearbox equipped with a thrust collar was developed. This model was then used in a gearbox dynamics simulation model to analyze the effects of the thrust collar on the transferpath.
The first partial model shows how the oil film and the radiated sound power could alter the acoustic performance of a gearbox. In particular, the sound pressure levels of exciting frequencies are compared at the top cover of the gearbox in the vertical direction. This was done using an accelerometer.
The second partial model is a simulation of airborne sound from the gearbox housing. This is done using the compound of the motor excitation and the meshing excitation. This is done by measuring the frequency of radiated sound at four different combinations of torque and speed.
In addition, the helical gear has been sliced into an arbitrary number of cross sections. Each gear is then mounted on a shaft, which rotates with a different timing. The helical gear is compared to a corresponding spur gear for comparison. The spur gear has a higher root stress, but its relative contact stress isn’t nearly as big as that of the helical gear.
editor by czh 2023-01-12
China High Torque K Series Helical Bevel Gear Motor Reducer Gearbox crossed helical gearbox
Item Description
High torque K series helical bevel gear motor reducer gearboxne
Item Description
Description: K Collection Helical Bevel Gearbox
Overview
(1) Input mode: coupled motor, belted motor, enter shaft or relationship flange.
(2) Correct angle output.
(3) Compact structure.
(4) Rigid tooth experience.
(5) Carrying higher torque, higher loading potential.
(6) Large precision gear, making sure the device to operate stably, clean transmission.
(7) Minimal sound, lengthy lifespan.
(8) Large overlap coefficient, abrasion resistant.
Detailed Images
K collection gear units are available in the subsequent patterns:
KAZ..Y..Quick-flange-mounted helical-bevel gear units with hollow shaft
K…Y…Foot-mounted helical-bevel equipment units with sound shaft
KAT…Y…Torque-arm-mounted helical-bevel equipment units with hollow shaft
KAB…Y…Foot-mounted helical-bevel equipment units with hollow shaft
K(KF,KA,KAF,KAB,KAZ)S…Shaft enter helical-bevel gear units
KA…Y…Helical-bevel gear models with hollow shaft
KA(K, KF ,KAF, KAB ,KAZ)R..Y..Combinatorial helical-bevel equipment units
KF…Y…Flange-mounted helical-bevel gear models with sound shaft
KA(K, KF ,KAF ,KAZ)S…R…Shaft enter combinatorial helical-bevel gear units
KAF…Y…Flange-mounted helical-bevel gear units with hollow shaft
KA(K, KF ,KAF, KAB ,KAZ)…Y…When equipping the user’s motor or the unique 1 ,the flange is necessary to be related
The weights are imply values, only for reference.
Optimum torque signifies the largest 1 of the optimum torque related to the different ratio for the specified dimensions.
Rated Electricity:.18KW~200KW
Rated Torque:Up to 50000N.m
Equipment Arrangement:Bevel Helical Hardened Gearbox
Enter Velocity:50HZ or 60HZ of 4Pole,6Pole and 8pole motor
Ratio:5.36~192.eighteen
Solution Parameters
Structure:
| K(-) |
K(A) | K(F) | Input power range | Output speed | Output torque |
| Foot-mounted | Hollow shaft output |
Flange-mounted | .eighteen-200kw | .1-270r/min | Up to 50000Nm |
Input energy score and greatest torque:
| Measurement |
38 | 48 | 58 | sixty eight | seventy eight | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Construction |
K KA KF KAF KAZ KAT KAB | |||||||||||
| Input power score(kw) |
.18~ 3. |
.eighteen~ 3. |
.eighteen~ 5.five |
.eighteen~ five.5 |
.37~ 11 |
.75~ 22 |
1.3~ 30 |
three~ forty five |
seven.5~ 90 |
11~ 160 |
11~ two hundred |
18.5~ 200 |
| Ratio | five.36~ 106.38 |
five.eighty one~ 131.87 |
six.57~ one hundred forty five.fifteen |
seven.fourteen~ forty four.79 |
7.22~ 192.18 |
seven.19~ 197.27 |
eight.95~ a hundred seventy five.forty seven |
eight.74~ 141.ninety three |
eight.68~ 146.07 |
12.66~ one hundred fifty.03 |
17.35~one sixty four.forty four |
17.ninety seven~ 178.37 |
| Greatest Torque(N.m) |
two hundred | 400 | 600 | 820 | 1550 | 2770 | 4300 | 8000 | 13000 | 18000 | 32000 | 50000 |
Gear device fat:
| Dimensions |
38 | 48 | 58 | sixty eight | seventy eight | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Fat |
eleven | twenty | 27 | 33 | 57 | eighty five | one hundred thirty | 250 | 380 | 610 | 1015 | 1700 |
Packaging & Delivery
Firm Profile
Right after Income Service
| Pre-sale solutions | 1. Decide on tools product. |
| 2.Layout and manufacture items according to clients’ special requirement. | |
| three.Practice specialized private for customers | |
| Services in the course of marketing | one.Pre-check out and acknowledge merchandise in advance of supply. |
| two. Help customers to draft resolving plans. | |
| After-sale solutions | 1.Aid clients to put together for the first development plan. |
| two. Train the 1st-line operators. | |
| 3.Get initiative to eliminate the difficulty swiftly. | |
| four. Give technical exchanging. |
FAQ
1. How to decide on a gearbox which fulfills our need?
You can refer to our catalogue to pick the gearbox or we can aid to decide on when you provide
the technological information of needed output torque, output speed and motor parameter etc.
two. What information shall we give ahead of inserting a obtain get?
a) Sort of the gearbox, ratio, input and output kind, input flange, mounting placement, and motor details and so forth.
b) Housing coloration.
c) Acquire amount.
d) Other specific requirements.
3. What industries are your gearboxes being utilised?
Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry,
escalator,computerized storage gear, metallurgy, environmental safety, logistics and and so forth.
4.Do you offer any checking out?
Yes! We sincerely invite you to visit us! We can select you from airport, railway station and so on. Also, we can prepare housing for you. Please allow us know in sophisticated.
five.Is your top quality good?
Good quality by no means notify lies, we’re theprofessional manufacturer and exporter of gear reducer and motor in Asia, who has been offered license considering that 1982. Also, we had reached ISO9001 and CE Certification amongst all producers.
Contact:
If you are interested in our merchandise, welcome you make contact with me.
Our team will support any need you may have.
| Application: | Motor, Machinery |
|---|---|
| Function: | Change Drive Torque, Speed Changing, Speed Reduction |
| Layout: | Right Angle |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Four-Step |
###
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) |
|---|
###
| Customization: |
Available
|
|---|
###
| K(-) |
K(A) | K(F) | Input power range | Output speed | Output torque |
| Foot-mounted | Hollow shaft output |
Flange-mounted | 0.18-200kw | 0.1-270r/min | Up to 50000Nm |
###
| Size |
38 | 48 | 58 | 68 | 78 | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Structure |
K KA KF KAF KAZ KAT KAB | |||||||||||
| Input power rating(kw) |
0.18~ 3.0 |
0.18~ 3.0 |
0.18~ 5.5 |
0.18~ 5.5 |
0.37~ 11 |
0.75~ 22 |
1.3~ 30 |
3~ 45 |
7.5~ 90 |
11~ 160 |
11~ 200 |
18.5~ 200 |
| Ratio | 5.36~ 106.38 |
5.81~ 131.87 |
6.57~ 145.15 |
7.14~ 44.79 |
7.22~ 192.18 |
7.19~ 197.27 |
8.95~ 175.47 |
8.74~ 141.93 |
8.68~ 146.07 |
12.66~ 150.03 |
17.35~1 64.44 |
17.97~ 178.37 |
| Maximum Torque(N.m) |
200 | 400 | 600 | 820 | 1550 | 2770 | 4300 | 8000 | 13000 | 18000 | 32000 | 50000 |
###
| Size |
38 | 48 | 58 | 68 | 78 | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Weight |
11 | 20 | 27 | 33 | 57 | 85 | 130 | 250 | 380 | 610 | 1015 | 1700 |
###
| Pre-sale services | 1. Select equipment model. |
| 2.Design and manufacture products according to clients’ special requirement. | |
| 3.Train technical personal for clients | |
| Services during selling | 1.Pre-check and accept products ahead of delivery. |
| 2. Help clients to draft solving plans. | |
| After-sale services | 1.Assist clients to prepare for the first construction scheme. |
| 2. Train the first-line operators. | |
| 3.Take initiative to eliminate the trouble rapidly. | |
| 4. Provide technical exchanging. |
| Application: | Motor, Machinery |
|---|---|
| Function: | Change Drive Torque, Speed Changing, Speed Reduction |
| Layout: | Right Angle |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Four-Step |
###
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) |
|---|
###
| Customization: |
Available
|
|---|
###
| K(-) |
K(A) | K(F) | Input power range | Output speed | Output torque |
| Foot-mounted | Hollow shaft output |
Flange-mounted | 0.18-200kw | 0.1-270r/min | Up to 50000Nm |
###
| Size |
38 | 48 | 58 | 68 | 78 | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Structure |
K KA KF KAF KAZ KAT KAB | |||||||||||
| Input power rating(kw) |
0.18~ 3.0 |
0.18~ 3.0 |
0.18~ 5.5 |
0.18~ 5.5 |
0.37~ 11 |
0.75~ 22 |
1.3~ 30 |
3~ 45 |
7.5~ 90 |
11~ 160 |
11~ 200 |
18.5~ 200 |
| Ratio | 5.36~ 106.38 |
5.81~ 131.87 |
6.57~ 145.15 |
7.14~ 44.79 |
7.22~ 192.18 |
7.19~ 197.27 |
8.95~ 175.47 |
8.74~ 141.93 |
8.68~ 146.07 |
12.66~ 150.03 |
17.35~1 64.44 |
17.97~ 178.37 |
| Maximum Torque(N.m) |
200 | 400 | 600 | 820 | 1550 | 2770 | 4300 | 8000 | 13000 | 18000 | 32000 | 50000 |
###
| Size |
38 | 48 | 58 | 68 | 78 | 88 | 98 | 108 | 128 | 158 | 168 | 188 |
| Weight |
11 | 20 | 27 | 33 | 57 | 85 | 130 | 250 | 380 | 610 | 1015 | 1700 |
###
| Pre-sale services | 1. Select equipment model. |
| 2.Design and manufacture products according to clients’ special requirement. | |
| 3.Train technical personal for clients | |
| Services during selling | 1.Pre-check and accept products ahead of delivery. |
| 2. Help clients to draft solving plans. | |
| After-sale services | 1.Assist clients to prepare for the first construction scheme. |
| 2. Train the first-line operators. | |
| 3.Take initiative to eliminate the trouble rapidly. | |
| 4. Provide technical exchanging. |
What Is a Helical Gearbox?
Basically, a gearbox is a rotating circular machine part that consists of toothed components, which mesh together. Its function is to transfer speed and torque to other parts of the machine. It is also similar to a lever, and operates on the same principle.
Double helical gears
Having a helical gearbox has many advantages, including higher efficiency, high strength, and a superior gear system. However, it has its drawbacks. One of these drawbacks is the axial thrust. Axial thrust is not a problem with single helical gears, but it is a problem with double helical gears.
In double helical gears, there are two sets of teeth that are arranged in a V-shape. In one set of teeth, there is a groove that enables the axial force to be cancelled out. The groove eliminates the need for thrust bearings and allows for efficient handling of high capacity power transmission.
Aside from the axial thrust, there are also issues with face contact. Asymmetric load sharing and oscillation put substantial alternating loads on the shaft bearings. These alternating loads can lead to early bearing failure.
Fortunately, helical gears are smoother than spur gears, which means they can withstand more load. They also have greater pitch circle diameter than spur gears. However, they are limited in their scope. The pitch error distribution on the helical gears is typically limited to 50 mm peak-to-peak amplitude. It is important to control the phase difference of oncoming gears with high accuracy.
Typically, the helical gears that are used in a gear box are assembled from the same module. This allows for interchangeability of components and economical construction. A normal module set can use the same tooth-cutting tools that are used for spur gears.
Double helical gears are used in power transmission in fluid pumps and gas turbines. They are also commonly used in planetary reduction gear boxes for engines in civil aviation.
Generally, double helical gears are larger than single helical gears. They are typically generated from a special generator. They are also more expensive.
However, manufacturers are looking to find gears that are more convenient to use. One solution is to manufacture double helical gears on a multi-tasking machine tool. This allows the gear to be machined in complicated shapes.
The multi-tasking machine tool can also modify the tooth surface. This is useful for 3D printing helical gears with a high level of accuracy.
Crossed-axis helical gears
Several factors affect the performance of crossed-axis helical gears. One of the important factors is the position of the gears on the cross shaft. The gears will not perform properly if they are not oriented in a different direction.
Crossed-axis helical gears have a special situation, in which they will not function properly if the gears are oriented in the same direction. This is especially true for automobile oil pump/distribution shafts. Depending on the situation, gears will operate as a normal helical gear or as a spur gear.
Compared to spur gears, crossed-axis helical gears have relatively higher capacity. However, the transverse contact ratio of these gears is reduced. This decrease is dependent on the pressure angle. The pressure angle affects the curvature radii of the teeth. In addition, the length of the contact line is reduced. This shortens the efficiency of the gear.
Helix angle of crossed-axis helical gears is 45 degrees. It may be a left-handed or a right-handed gear. The pitch circle diameter of a helical gear may be big compared to that of a spur gear. This is due to the fact that the gears are cut at an angle to the shaft.
In the axial direction, the meshing of helical gears is very similar to spur gears. However, there are a few design rules to optimize these gears.
The first rule is that the gears must be staggered in opposite directions. If the gears are not staggered, the contact lines cannot be changed.
The second rule states that the pitch of a helical gear is dependent on its helix angle. It is possible to calculate the pitch circle of a helical gear, by integrating along the face width. In addition, the length of the contact lines decreases as the pressure angle increases. However, this decrease is not as large as that of a spur gear.
Right angle helical gears
Choosing a right angle helical gearbox can be difficult. With so many types, sizes, and configurations to choose from, it can be difficult to figure out which one is right for your application. The key to choosing the right gearbox is understanding your application and what factors are most important to you.
For example, if you are looking for a gearbox that can be used in a high-speed, high-torque application, the most important consideration is the efficiency of the product. Right-angle gearboxes are compact and easy to maintain, making them ideal for high-torque applications.
Some applications that require high-torque gears include pulp and paper manufacturing, food processing, mining, and car washes. Some of the advantages of right angle gears include high efficiency, low maintenance, and low noise. If you are in the market for a right angle helical gearbox, make sure to select a supplier that can provide you with a wide range of options.
Right-angle helical gearboxes come in several different bevel configurations. Spiral bevel gears require precision and are difficult to manufacture. However, they can be used interchangeably. Spiral miter gears are designed to rotate in the same direction as the input shaft, which helps ensure a smooth, direct transfer of power.
If you are considering a helical gearbox for a high-speed application, you will need to know your preferred input/output ratio. The standard ratios are 1:1 and 2:1. If you need a step-up ratio, you can install an additional output shaft opposite the input shaft.
Other benefits include lower running noise, superior strength, and durability. Because they are made of larger teeth, helical gears are less likely to wear out. Also, helical gears provide higher power carrying capacity.
To determine which type of right angle gearbox is best suited for your application, you should discuss your needs with your supplier. They should be able to offer a wide range of options, including custom solutions. They should also provide you with a list of past clients and online reviews.
To find a right angle helical gearbox that can meet your needs, it’s important to understand the various design features. For example, you should make sure that your gearbox has a self-locking capability, which means that the load cannot drive the worm. Having a self-locking gearbox also means that you do not need to install a braking system.
Spiral teeth
Using helical gearboxes to drive a motor car or truck is an efficient method of power transmission. However, the efficiency of this method depends on the helix angle of the gear. The helix angle is the angle that the gear teeth are cut at.
Helical gearboxes may be of different helix angles, depending on the specific gear set. The helix angle can vary between 15 and 30 degrees. This is important because the helix angle has a significant effect on the position of tooth contact. If the contact is not in a proper position, then there will be a large amount of vibration. This will affect the speed of the gear.
Helical gearboxes can be of two types: crossed axis and parallel axis. Crossed axis gears are usually used to connect parallel shafts. They have the same center gap as spur gears. On the other hand, parallel axis gears are usually used to drive a motor. The difference between the two types of gearboxes is their design and arrangement.
In addition to the helix angle, the gears may have different fillet, teeth, and radius. This means that the gear will have different NVH characteristics. In addition, there are different types of spiral teeth that may be used in the gearbox.
Hypoid gears are also similar to spiral bevel gears, but they differ in that the axes of the gear shaft do not intersect the axis of the hypoid gear. The hypoid gear exerts a very high thrust load on the bearings.
When compared to a straight bevel gear, the hypoid gear experience a smoother, less noisy operation. They also produce less shock loading.
Spiral bevel gears are also designed to produce less vibration. They are also more cost-effective. However, they require a larger diameter to transmit the same torque. This can lead to a reduced mechanical efficiency and lower fuel economy.
The best spiral bevel gears can carry a higher thrust load than straight teeth. This is why they are preferred for applications that require heavy load efficiency.
They are also appreciated for their NVH characteristics. They are also a quieter option for applications that require high speed. Helical gears can be used in many different industries. The food, automotive, and oil industries are examples of these types of gears.
editor by czh 2023-01-08