Hollow Shaft K Series Helical Bevel Reducer Gearbox
As a leading professional manufacturer in China, we specialize in producing K series helical bevel geared motors, renowned for their compact design and exceptional torque output. These right-angle K series motors are engineered to provide peak performance and unwavering reliability, boasting an efficiency rating exceeding 95% alongside impressive torque density. The durable gearing, crafted for an extended service life, positions these drives as an optimal solution for continuous, high-demand applications. Whether operating in challenging industrial settings or requiring consistent power delivery, our K series motors stand out as a dependable choice for businesses seeking robust and efficient machinery.
The helical-bevel gear units in our K series offer an outstanding efficiency of over 96%, performing exceptionally well in both torque directions and across all input speeds. Designed with high-endurance gearing, these units ensure a wear-free, high-torque operation that lasts, making them a sustainable option for energy-conscious users. Our highly efficient helical-bevel gear motors provide angular drives that save energy while maintaining top-tier functionality. With a long, maintenance-free lifespan, they are compatible with AC asynchronous motors, as well as both asynchronous and synchronous servo motors, making them versatile for virtually any application. For tasks requiring pinpoint accuracy, we also offer a reduced backlash variant, enhancing precision in positioning operations.
Technical Parameters:
| Available Models | KA37, KA47, KA57, KA67, KA77, KA87, KA97, KA107, KA127, KA157, KA187, KA47RF37, KA57RF37, KA67RF37, KA77RF37, KA87RF37, KA97RF37, KA107RF37, KA127RF77, KA127RF87,KA157RF97, KA167RF97, KA187RF97, KA157RF107, KA167RF107, KA187RF107 |
| Ratio | 5.36~179.86 (imax:13461) |
| Input power | 0.12 ~ 200 kW |
| Max torque | 200~50000 N.m |
CHARACTERISTICS
- Adopt optimized design, module combination.
- Right angle output, wide application.
- It adopts advanced grinding technology and shape modification technology, which has high bearing capacity, reliable operation and low noise.
- Good sealing performance, suitable for a wide range of working conditions.
- High transmission efficiency and energy saving.
- Can be combined with various motors with wider ratio range
- Cost-effective and easy to maintain.
Product Form
- Transmission Stage: 3 stage.
- Assembly Form: Foot mounted, Flange mounted, B14 small flange mounted, torque arm mounted.
- Right Angle Output: Solid shaft, Hollow shaft ( flat key, shrink disk, involute spline), Splined solid shaft
Technical Data
- Size: KA37~KA187
- Technical Data(N·m): 200~50000
- Gear Ratio: 5.36~179.86 (imax:13461)
- Input Power(kW):0.12~200
Input Power Rating and Output Torque
| Size | 37 | 47 | 57 | 67 | 77 | 87 | 97 | 107 | 127 | 157 | 167 | 187 |
| 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 | 1.1-30 | 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 | 7.14-144.79 | 7.22-175.45 | 7.19-192.27 | 8.95-175.47 | 8.74-141.93 | 8.68-146.07 | 12.66-150.03 | 17.35-164.44 | 17.97-178.37 |
| Max torque (N.m) | 200 | 400 | 600 | 820 | 1550 | 2700 | 4300 | 8000 | 13000 | 18000 | 32000 | 50000 |
Available Models:
Version | Size | ||||||
37 | 47 | 57 | 67 | 77 | 87 | ||
K.. | Foot-mounted helical bevel gearbox | K37 | K47 | K57 | K67 | K77 | K87 |
KA..B | Foot-mounted / Hollow shaft helical bevel gearbox | KA37B | KA47B | KA57B | KA67B | KA77B | KA87B |
KV..B | Foot-mounted / Hollow shaft / Splined hollow shaft helical bevel gearbox | KV37B | KV47B | KV57B | KV67B | KV77B | KV87B |
KH..B | Foot-mounted / Hollow shaft / Shrink disc helical bevel gearbox | KH37B | KH47B | KH57B | KH67B | KH77B | KH87B |
KF.. | B5 flange-mounted helical bevel gearbox reducer | KF37 | KF47 | KF57 | KF67 | KF77 | KF87 |
KAF.. | B5 Flange-mounted / Hollow shaft helical bevel gearbox | KAF37 | KAF47 | KAF57 | KAF67 | KAF77 | KAF87 |
KVF.. | B5 Flange-mounted / Hollow shaft / Splined hollow shaft helical bevel gearbox | KVF37 | KVF47 | KVF57 | KVF67 | KVF77 | KVF87 |
KHF.. | B5 Flange-mounted / Hollow shaft / Shrink disc helical bevel gearbox | KHF37 | KHF47 | KHF57 | KHF67 | KHF77 | KHF87 |
KA.. | Hollow shaft helical bevel gearbox | KA37 | KA47 | KA57 | KA67 | KA77 | KA87 |
KV.. | Hollow shaft / Splined hollow shaft helical bevel gearbox | KV37 | KV47 | KV57 | KV67 | KV77 | KV87 |
KH.. | Hollow shaft / Shrink disc helical bevel gearbox | KH37 | KH47 | KH57 | KH67 | KH77 | KH87 |
KAT.. | Hollow shaft / Torque arm helical bevel gearbox | KAT37 | KAT47 | KAT57 | KAT67 | KAT77 | KAT87 |
KAZ.. | B14 Flange-mounted / Hollow shaft helical bevel gearbox | KAZ37 | KAZ47 | KAZ57 | KAZ67 | KAZ77 | KAZ87 |
KVZ.. | B14 Flange-mounted / Hollow shaft / Splined hollow shaft helical bevel gearbox | KVZ37 | KVZ47 | KVZ57 | KVZ67 | KVZ77 | KVZ87 |
KHZ.. | B14 Flange-mounted / Hollow shaft / Shrink disc helical bevel gearbox | KHZ37 | KHZ47 | KHZ57 | KHZ67 | KHZ77 | KHZ87 |
Version | Size | ||||||
97 | 107 | 127 | 157 | 167 | 187 | ||
K.. | Foot-mounted right angle helical bevel gear reducer | K97 | K107 | K127 | K157 | K167 | K187 |
KA..B | Foot-mounted / Hollow shaft right angle helical bevel gear reducer | KA97B | KA107B | KA127B | KA157B | KA167B | KA187B |
KV..B | Foot-mounted / Hollow shaft / Splined hollow shaft helical bevel gearbox | KV97B | KV107B | KV127B | KV157B | KV167B | KV187B |
KH..B | Foot-mounted / Hollow shaft / Shrink disc helical bevel gear box | KH97B | KH107B | KH127B | KH157B | KH167B | KH187B |
KF.. | B5 Flange-mounted helical bevel gear box | KF97 | KF107 | KF127 | KF157 | KF167 | KF187 |
KAF.. | B5 Flange-mounted / Hollow shaft helical bevel gearbox reducer | KAF97 | KAF107 | KAF127 | KAF157 | KAF167 | KAF187 |
KVF.. | B5 Flange-mounted / Hollow shaft / Splined hollow shaft helical bevel gearbox | KVF97 | KVF107 | KVF127 | KVF157 | KVF167 | KVF187 |
KHF.. | B5 Flange-mounted / Hollow shaft / Shrink disc helical bevel gearbox | KHF97 | KHF107 | KHF127 | KHF157 | KHF167 | KHF187 |
KA.. | Hollow shaft helical bevel gearbox | KA97 | KA107 | KA127 | KA157 | KA167 | KA187 |
KV.. | Hollow shaft / Splined hollow shaft helical bevel gearbox | KV97 | KV107 | KV127 | KV157 | KV167 | KV187 |
KH.. | Hollow shaft / Shrink disc helical bevel gearbox | KH97 | KH107 | KH127 | KH157 | KH167 | KH187 |
KT.. | Hollow shaft / Torque arm helical bevel gearbox | KT97 | KT107 | KT127 | KT157 | KT167 | KT187 |
KAZ.. | B14 Flange-mounted / Hollow shaft helical bevel gearbox | KAZ97 | KAZ107 | KAZ127 | KAZ157 | KAZ167 | KAZ187 |
KVZ.. | B14 Flange-mounted / Hollow shaft / Splined hollow shaft helical bevel gearbox | KVZ97 | KVZ107 | KVZ127 | KVZ157 | KVZ167 | KVZ187 |
KHZ.. | B14 Flange-mounted / Hollow shaft / Shrink disc helical bevel gearbox | KHZ97 | KHZ107 | KHZ127 | KHZ157 | KHZ167 | KHZ187 |
K37 gearbox, K47 gearbox, K57 gearbox, K67 gearbox, K77 gearbox, K87 gearbox, K97 gearbox, K107 gearbox, K127 gearbox, K157 gearbox, K187 gearbox,
KF37 gear box, KF47 gearbox, KF57 gear reducer, KF67 gearbox, KF77 gearbox, KF87 gearbox, KF97 gearbox, KF107 gearbox, KF127 gearbox, KF157 gearbox, KF187 gearbox,
KA37 gearbox, KA47 gearbox, KA57 gearbox, KA67 gearbox, KA77 gearbox, KA87 gearbox, KA97 gearbox, KA107 gearbox, KA127 gearbox, KA157 gearbox, KA187 gearbox,
KAT37 gearbox, KAT47 gearbox, KAT57 gearbox, KAT67 gearbox, KAT77 gearbox, KAT87 gearbox, KAT97 gearbox, KAT107 gearbox, KAT127 gearbox, KAT157 gearbox, KAT187 gearbox,
KAF37 gearbox, KAF47 gearbox, KAF57 gearbox, KAF67 gearbox, KAF77 gearbox, KAF87 gearbox, KAF97 gearbox, KAF107 gearbox, KAF127 gearbox, KAF157 gearbox, KAF187 gearbox,
KAZ37 gearbox, KAZ47 gearbox, KAZ57 gearbox, KAZ67 gearbox,KAZ77 gearbox, KAZ87 gearbox, KAZ97 gearbox, KAZ107 gearbox, KAZ127 gearbox, KAZ157 gearbox, KAZ187 gearbox,
KA: hollow shaft output helical bevel gear reducer
KF: flange-mounted solid shaft output helical bevel gearbox
KAF: flange-mounted hollow shaft output helical bevel gear box
KAZ: B14 flange mounted hollow shaft output helical bevel gearmotor
KAT: torque-arm-mounted hollow shaft output helical bevel geared motor
KAB: foot-mounted hollow shaft output helical bevel reduction gearbox
KVZ: Splined hollow shaft with B14 flange helical bevel motor reducer
Type and Designation

- Directly-connected motor speed reducer: K-A-B-97-62.55-Y-5.5KW-4P-NZQ-M1-J1-ZZ-AZ-S
- Directly-connected motor Speed reducer(Combination type): K-A-B-97-RF-F-57-62.55-Y-5.5KW-4P-M1-J1-ZZ-AZ-S
- With motor and input flange: K-A-B-97-62.55-AM132B5-Y-5.5KW-4P-M1-J1-ZZ-AZ-S
- Input flange-mounted, without motor: K-A-B-97-62.55-AM132B5-M1-J1-ZZ-AZ-S
- With input shaft: K-A-B-97-62.55-AD4-M1-Z-S
Note:
AM132B5: Dimension of IEC flange ( please refer to our catalogue)
AD4: Input shaft (AD1, AD2, AD3, AD4, AD5, AD6, AD7, AD8)
Motor Code:
*Y: Standard 3-phase motors
*YB: Explosion-proof motors
* YEJ: Brake motors
*YD: Multi-speed motors
* YVP: Variable frequency motors
*YCT: Electromagnetic speed regulation motors
*YR: Crane and metallurgy motors
*YVPEJ: Variable frequency and brake motors
*YG: Roller table motors
*YGPEJ: Variable frequency and brake and roller table motors
Mounting Position

Motor Terminal Box Position

Structure Drawing


Modular Design

Product Pictures
![]() | ![]() |
![]() | ![]() |
Application
The Hollow Shaft K Series Helical Bevel Reducer Gearbox is a highly adaptable and extensively utilized component across a wide array of industries, demonstrating its versatility in meeting diverse operational demands. In the light industry, it drives machinery crucial for food production, while in the beer and beverage sector, it ensures efficient and uninterrupted processing lines. Its robust design is equally valuable in the chemical industry, where durability and precision are vital, and in escalator systems, where it provides the steady performance needed for safe public use. Furthermore, this gearbox excels in applications such as automatic storage systems, construction equipment, and the rigorous environment of iron and steel metallurgy, proving its capability to handle both lightweight and intensive tasks effectively.
Expanding its scope, the Hollow Shaft K Series is indispensable in industries like paper-making and wood-based panel machinery, where it supports reliable operation under fluctuating workloads. In automobile manufacturing, it aids in the meticulous assembly of vehicles, while in tobacco machinery, it enables complex production processes to run smoothly. The gearbox also plays a critical role in water conservancy projects, optimizing resource management, and in printing and packaging operations that depend on precise, coordinated movements. Its widespread adoption in pharmaceuticals, textiles, building materials, logistics, feed machinery, and environmental protection initiatives further highlights its significance, offering enhanced efficiency and sustainability across these multifaceted sectors.










