B series helical bevel industrial gearboxes are designed based on module with right angle output shaft. The transmission torque distribution curve is excellent, suitable for heavy load conditions. It adopts advanced grinding technology and shape modification technology, which has high bearing capacity, reliable operation and low noise. The box body is made of high-quality casting to improve the mechanical strength and seismic performance of the reducer. Numerous mounting options are available.
B series right angle heavy duty industrial gear reducers are the same mounting dimensions as FLENDER(SIEMENS). There are high precision and high strength. Gear precision are above grade 6 (DIN), ground by profile grinding machine with power range: 3-5000kW and ratio:1.25-400.
- Adopt optimized modular design.
- Right angle shaft output form.
- The transmission torque distribution curve is excellent, suitable for heavy load conditions.
- It adopts advanced grinding technology and shape modification technology, which has high bearing capacity, reliable operation and low noise.
- The box body is made of high-quality casting to improve the mechanical strength and seismic performance of the reducer.
- Numerous mounting options are available.
Product Description
Model |
B2SV04~B2SV18, B3SV04~B3SV26, B4SV05~B4SV26 |
Ratio |
5~400 |
Input power |
5.5~4400 kW |
Max torque |
6.1~900 kN.m |
Detailed Photos
Product Parameters
Transmission stage |
Ratio(i) |
Model |
B2 |
5 - 14 |
B2SV4 gearbox, B2SV5 gearbox, B2SV6 gearbox, B2SV7 gearbox, B2SV8 gearbox, B2SV9 gearbox, B2SV10 gearbox, B2SV11 gearbox, B2SV12 gearbox, B2SV13 gearbox, B2SV14 gearbox, B2SV15 gearbox, B2SV16 gearbox, B2SV17 gearbox, B2SV18 gearbox, |
B3 |
12.5 - 90 |
B3SV4 gearbox, B3SV5 gearbox, B3SV6 gearbox, B3SV7 gearbox, B3SV8 gearbox, B3SV9 gearbox, B3SV10 gearbox, B3SV11 gearbox, B3SV12 gearbox, B3SV13 gearbox, B3SV14 gearbox, B3SV15 gearbox, B3SV16 gearbox, B3SV17 gearbox, B3SV18 gearbox, B3SV19 gearbox, B3SV20 gearbox, B3SV21 gearbox, B3SV22 gearbox, B3SV23 gearbox, B3SV24 gearbox, B3SV25 gearbox, B3SV26 gearbox, |
B4 |
80 - 400 |
B4SV4 gearbox, B4SV5 gearbox, B4SV6 gearbox, B4SV7 gearbox, B4SV8 gearbox, B4SV9 gearbox, B4SV10 gearbox, B4SV11 gearbox, B4SV12 gearbox, B4SV13 gearbox, B4SV14 gearbox, B4SV15 gearbox, B4SV16 gearbox, B4SV17 gearbox, B4SV18 gearbox, B4SV19 gearbox, B4SV20 gearbox, B4SV21 gearbox, B4SV22 gearbox, B4SV23 gearbox, B4SV24 gearbox, B4SV25 gearbox, B4SV26 gearbox, |
Packaging & Shipping
Installation Instructions


Company Profile
Qingdao King Machinery Co., Ltd. Was established in 2020, covering an area of more than 6, 000 square meters and more than 110 mechanical equipment. Headquartered in Zibo City, Shandong Province, it is a company specializing in the production and sales of reducers (including precision reducers for robots), water pumps, road rollers, cement machinery, mining equipment, wind power equipment and accessories; Mechanical transmission product design and sales; Mechanical parts processing.
The products adopt German standards, high-quality alloy steel, carbon steel, forgings (20CrMnTi, 17CrNiMOA, 20CrMnMo, 18CrNiMo7-6, 17CrNiMo6, etc. )
Support customization of various non-standard gearboxes, non-standard large gears, non-standard bevel gear kits, metallurgical equipment reducers, ship gearboxes, wind power project reducers, robot arm gears, etc.
The company is committed to innovation, continuously increasing R&D investment, and has established a technical team composed of industry experts, with a number of independent intellectual property rights and core technologies. Our products are widely used in industries such as automobile manufacturing, aerospace, metallurgy, energy, etc., providing efficient, stable equipment and high-quality services to many customers.
Qingdao King Machinery Co., Ltd. Always adheres to the concept of "quality first, customer-oriented", strictly controls quality in every link from R&D design to production and assembly to ensure product reliability and durability. We also provide comprehensive after-sales service support to ensure long-term customer satisfaction and trust.
As an innovation-driven enterprise, Qingdao King Machinery Co., Ltd. ′s mission is to provide advanced machinery and equipment and overall solutions for global industrial development, help customers improve production efficiency and promote industry progress.
After Sales Service
1. Warranty Service
Most transmission motor manufacturers provide a certain period of warranty service, usually 1-2 years. During the warranty period, if the motor fails, the manufacturer will provide free repair or replacement service.
Services outside the warranty period are usually charged, but many manufacturers also provide the option of extending the warranty period.
2. Fault diagnosis and repair
If the transmission motor fails, the after-sales service team will perform fault diagnosis to find the root cause of the problem. Common problems include motor overheating, abnormal noise, insufficient power, unstable speed, etc.
Repair work includes replacing damaged parts such as brushes, bearings, wire connectors, etc., or cleaning and re-commissioning the motor.
3. Accessories Supply
Provide original motor-related accessories, including bearings, seals, reducers, control systems, etc., to ensure the efficient operation of the motor.
Some manufacturers also provide special accessory packages and provide customized services for motors of different models and uses.
4. Technical Support
Provide remote or on-site technical support to help users solve technical problems encountered during the use of the motor. Support content includes correct installation of the motor, operation and commissioning, system integration, etc.
Some manufacturers also provide online technical documentation, video tutorials or telephone support to help users solve problems on their own without the need for on-site service.
5. Maintenance and maintenance recommendations
Regular maintenance and maintenance are important links to ensure the long-term stable operation of the motor. After-sales service will provide services such as motor cleaning, lubrication, replacement of consumable parts (such as brushes, etc.), and provide maintenance cycle recommendations.
Manufacturers may send maintenance reminders to customers regularly to help extend the service life of the motor.
6. Upgrades and modifications
Provide upgrade and modification services for motor systems based on customer needs. For example, improve transmission efficiency, replace more advanced control systems, etc.
Some motor systems also provide software upgrades, especially in intelligent electric drive systems, after-sales services may include firmware or software updates.
7. On-site service and training
For some special applications or more complex motor systems, manufacturers may provide on-site services and send professionals to the customer site for installation, commissioning and repair.
At the same time, operation training and maintenance training will also be provided to help users better understand the use and maintenance of motors.
8. Return and exchange policy
For products with major quality problems, manufacturers usually provide return or exchange services. Generally speaking, the return and exchange policy will have a certain time limit (such as within 7 days or 30 days).