Your Professional Helical Bevel Gear Reducer Supplier
Founded in February 2023,Shandong Guode Transmission Equipment Co., Ltd. is a professional manufacturer specializing in transmission equipment and mining machinery solutions. Located in Boshan District, Zibo City, Shandong Province, our factory covers approximately 5,000 square meters and integrates R&D, production, assembly, warehousing, and office operations. Supported by an experienced technical and production team, we operate complete manufacturing lines for gear reducers, gearboxes, transmission cases, and mining machinery components. Our facility is equipped with machining, assembly, and testing equipment to ensure stable product quality and efficient production. With a focus on reliability, standardized manufacturing, and customer-oriented service, we are committed to providing dependable transmission solutions for global industrial customers.
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![K Series Helical Bevel Gear Reducer]()
K Series Helical Bevel Gear ReducerK Series Helical Bevel Gear Reducers combine compact right-angle design with efficient helical-bevel gearing to deliver stable torque transmission. They are widely used in conveying, lifting, and
Why choose us
Sales Market
Our products have been exported to over 20 countries and regions; leveraging our extensive experience in international trade and cross-border delivery, we are able to respond rapidly to the diverse needs of different markets.
Professional Technical Team
Our experienced engineering and production team is skilled in transmission equipment manufacturing and committed to providing reliable products and responsive technical support.
Strict Quality Control
All products are inspected according to national and industry standards before delivery, and each shipment is accompanied by inspection reports and related technical documentation.
Customized
We support customized production according to customer drawings, technical specifications, and application requirements, helping clients achieve suitable transmission solutions for different industries.
K Series Helical Bevel Gear Reducer
K Series Helical Bevel Gear Reducer is a composite reducer that combines helical gear and bevel gear transmission. The helical gear stage realises efficient power transmission between parallel shafts, while the bevel gear part completes 90-degree perpendicular steering of the input and output shafts, with greater torque and higher efficiency.
Parameters of K-Series Helical Bevel Gear Reducer
|
Size |
37 |
47 |
57 |
67 |
77 |
87 |
97 |
107 |
127 |
157 |
167 |
187 |
|
Structure |
K KA KF KAF KAZ KAT KAB |
|||||||||||
|
Input power rate |
0.18- |
0.18- |
0.18- |
0.18- |
0.37- |
0.75- |
1.1- |
3- |
7.5- |
11- |
11- |
18.5- |
|
Ratio |
5.36-106.38 |
5.81- 131.87 |
6.57- 145.14 |
7.14- 144.79 |
7.22- 192.18 |
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 |
200 |
400 |
600 |
820 |
1550 |
2700 |
4300 |
8000 |
13000 |
18000 |
32000 |
50000 |
|
Weight |
11 |
20 |
27 |
33 |
57 |
85 |
130 |
250 |
380 |
610 |
1015 |
1700 |
Key Technical Features of K Series Helical Bevel Gear Reducer
Transmission efficiency ≥ 95%: In both torque directions and at all input speeds — significantly superior to S Series worm gear reducers (50–85%) for equivalent ratios. This efficiency advantage lowers energy costs and reduces the risk of thermal overload in continuous duty.
Compact right angle design: The bevel stage is integrated into the same housing as the helical reduction stages, delivering a 90° shaft arrangement in a unit that is considerably more compact than separate inline + bevel gear stage combinations.
High load capacity: Carburized and ground helical and bevel gears achieve surface hardness of 58–62 HRC, enabling high torque ratings relative to housing size.
Low noise operation: Precision-ground spiral bevel and helical tooth profiles minimize gear mesh noise. The K Series is substantially quieter than S Series worm reducers at comparable loads and speeds.
Bi-directional operation: Transmits torque efficiently in both directions of rotation without efficiency penalty — important for reversing drives in lifting, conveyor, and positioning applications.
Modular design: Standardized sub-assemblies across all 12 frame sizes allow combination with R Series inline stages for extended ratio coverage without custom engineering.
Multiple installation positions: Supports horizontal, vertical, and wall-mounted orientations (positions M1 to M6) without modification to the internal gear set or lubrication system.
Broad motor compatibility: IEC-standard motor adapter flanges available for all major motor frame sizes; compatible with standard AC motors, brake motors, VFD (inverter duty) motors, multi-speed motors, and explosion-proof motors.
Planetary K Series Helical Bevel Reduction Gears
Ideal for applications requiring significant speed reduction and high output torque, planetary K series gears are commonly found in robotics, aerospace mechanisms, electric vehicle drivetrains, and precision automation systems.
Single-Stage K Series Helical Bevel Reduction Gear
Thanks to its straightforward design and cost-effectiveness, this type is widely deployed in general-purpose industrial machinery, motor drives, light conveyors, and HVAC systems.
Twin (Double-Stage) K Series Helical Bevel Reduction Gears
These gearboxes excel in heavy-duty environments where high torque and low RPM are critical, such as in industrial mixers, elevators, large conveyors, and mining equipment.
In-Line K Series Helical Bevel Reduction Gear
Due to their compact, linear design, in-line K series gears are frequently used in tight spaces such as conveyor systems, lifting equipment, packaging machines, and automated production lines.
Angled K Series Helical Bevel Reduction Gear
Commonly used in static or fixed installations where motor placement is constrained, angled K series gears are found in pumps, fans, agitators, mixers, and cooling towers.
Application of K Series Helical Bevel Gear Reducer
Conveyor systems: Belt conveyors, screw conveyors, and chain conveyors where the motor must be arranged perpendicular to the conveyor belt direction — one of the most common K Series applications globally.
Agitators and mixers: Vertical shaft agitators in chemical reactors, food processing tanks, and wastewater treatment aeration basins — KAF and KAT hollow shaft variants are particularly suited to direct shaft mounting on agitator shafts.
Three-dimensional parking systems: Automated multi-level parking garages require compact, high-torque right angle drives for lifting and traversing mechanisms — K Series is widely specified for this application.
Lifting and hoisting equipment: Goods hoists, jib cranes, and work platform elevators — K Series with brake motor provides controlled lifting with reliable load holding.
Environmental protection equipment: Sludge scraper drives, aerator drives, and biogas mixing systems in wastewater treatment plants.
Metallurgical and mining equipment: Conveyor belt drives, crusher feeder drives, and auxiliary machine drives in steel mills and mines.
Cement and building materials: Kiln auxiliary drives, separator drives, and raw material conveyor drives.
Food and beverage: Conveyor drives, bottling line drives, and mixing equipment in food production — KAF/KAZ variants used for hygienic compact installation.
Packaging and logistics: High-speed sortation conveyors, packaging line drives, and automated warehouse conveyor drives.
Paper and printing: Section drives in paper machines, winding and unwinding drives, and printing press auxiliary drives.
Textile machinery: Winding, twisting, and looming machine drives requiring compact right angle power transmission
How the K Series Helical Bevel Gear Reducer Works
Helical gear stages (input side)
One or two stages of precision-ground helical gears provide efficient, low-noise speed reduction from motor input speed. The helical tooth geometry distributes load across multiple teeth simultaneously, maximising torque capacity in a compact housing.
Spiral bevel gear stage (output side)
A pair of spiral bevel gears converts the rotational axis by exactly 90°. Spiral bevel teeth engage progressively like helical teeth, producing smooth, quiet power transmission compared to straight bevel gears. The bevel gear pair is the element that provides the right angle output characteristic of the K Series.
Higher efficiency than worm gears
Spiral bevel gears have rolling contact between tooth flanks with minimal sliding, whereas worm gear engagement involves substantial sliding friction — resulting in worm gear efficiency of only 50–85% at high ratios versus K Series efficiency of ≥ 95%.
Better heat management
The lower friction loss in bevel gear mesh produces far less heat, enabling higher continuous duty power ratings in the same housing size.
How to Select the Right K Series Model
Required output torque (N·m)
Use peak/shock torque, not just running torque; apply service factor for impact or reversing loads.
Motor input power (kW) and speed (RPM)
Determines the frame size and ratio.
Required output speed (RPM)
Use with input speed to calculate the required gear ratio.
Output shaft configuration
Solid shaft (K/KF), hollow keyed shaft (KA/KAF/KAZ/KAB), hollow shrink disc (KH series), hollow splined (KV series), or torque arm (KAT).
Mounting type
Foot (K/KA/KAB), B5 flange (KF/KAF), B14 flange (KAZ), torque arm (KAT).
Installation orientation
Horizontal (M1–M3) or vertical (M4–M5); confirm lubrication adequacy for non-standard orientations.
Motor type
Standard, brake, VFD-duty, multi-speed, or explosion-proof.
Application duty
Continuous S1, intermittent, or shock/reversing load; service factor selection required for non-S1 duty.
Special requirements
IP65 sealing, stainless hardware, tropical paint, or combined K+R high-ratio unit.
Mounted position of K-Series Helical Bevel Gear Reducer
Maintenance
Daily
Visual inspection for leaks, loose fasteners, and abnormal sounds.
01
Weekly
Check oil level and condition; look for discoloration or metal particles.
02
Monthly
Inspect coupling alignment, mounting bolts, and ventilation.
03
Every 6 Months
Replace lubricant and clean breathers; inspect gears and bearings during scheduled downtime.
04
Annually
Conduct full internal inspection if duty cycle is heavy or environment is harsh.
05
FAQ
We're well-known as one of the leading helical bevel gear reducer manufacturers in China, featured by quality products and good service. Please rest assured to buy customized helical bevel gear reducer made in China here from our factory. Thank you for your interest in our products.
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