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120BX,150BX,190BX,220BX,250BX,280BX,320BX,370BX
HUAKE
Our RV reducer series (Available Models: 120BX, 150BX, 190BX, 220BX, 250BX, 280BX, 320BX, 370BX) integrates advanced cycloidal pin wheel and planetary bracket design, delivering industry-leading positioning accuracy, torque density, and impact resistance for demanding industrial automation environments. As a superior alternative to traditional harmonic drives widely used in robotic systems, our RV cycloidal reducers are trusted by global industrial equipment manufacturers, automation integrators, and industrial business clients for consistent, long-term performance.
This series of reducers adopts a two-stage transmission structure to achieve large reduction ratios and high torque output in a compact footprint. Its core components include output flange, support flange, pin tooth housing, cycloidal gear, crank shaft, planetary gear, pin tooth, optional input gear, main bearing, tapered roller bearing, needle roller bearing with cage, and oil seal, ensuring full compatibility with servo motor systems and harsh industrial working conditions.
Unlike harmonic drives that experience significant motion accuracy degradation over long-term operation, our RV cycloidal gear reducer maintains stable return difference precision throughout its service life. This ultra-stable low backlash performance ensures repeatable positioning accuracy for robot joints and precision transmission systems, directly reducing product defect rates and improving production consistency for manufacturing enterprises.
The optimized cycloidal pin wheel structure delivers extremely high torque output in a compact, lightweight housing, with overload capacity up to 5× the rated torque. This exceptional impact resistance effectively protects the transmission system from sudden load shocks in heavy-duty working conditions, minimizing unplanned downtime and maintenance costs for industrial production lines.
Our RV reducer delivers far higher fatigue strength, structural stiffness, and service life than common harmonic drive solutions. We use high-strength alloy steel for core load-bearing components, paired with precision heat treatment and full-load factory testing, ensuring stable operation for tens of thousands of hours in continuous industrial applications, and reducing total cost of ownership (TCO) for our bulk procurement clients.
Precision machined components and optimized gear meshing design minimize vibration and operating noise, making the reducer suitable for noise-sensitive scenarios such as medical testing equipment and cleanroom automation. The high transmission efficiency (up to 80%) reduces energy consumption during long-term operation, supporting energy-saving targets for industrial facilities.
Model Code | Available Reduction Ratios | Nominal Torque (N·m) @ 15r/min | Peak Torque (N·m) |
|---|---|---|---|
120BX | 31, 40, 53.5, 59, 79, 100 | 58.8 | 294 |
150BX | 41, 57, 81, 105, 121, 141, 161 | 196 | 980 |
190BX | 41, 57, 81, 105, 121, 153 | 392 | 1960 |
220BX | 57, 81, 121, 153, 181 | 784 | 3920 |
250BX | 81, 111, 161, 175.28 | 1078 | 5390 |
280BX | 81, 101, 129, 145, 171 | 1568 | 7840 |
320BX | 81, 101, 129, 141, 171, 185 | 3136 | 15680 |
370BX | 81, 101, 129, 154.8, 171, 187.4 | 4410 | 22050 |
Model Code | Output Torque (N·m) @ 5r/min | Input Power (kW) @ 5r/min | Input Power (kW) @ 15r/min | Input Power (kW) @ 25r/min | Transmission Efficiency |
|---|---|---|---|---|---|
120BX | 115 | 0.075 | 0.115 | 0.2 | ≥80% |
150BX | 245 | 0.16 | 0.385 | 0.5 | ≥80% |
190BX | 612 | 0.4 | 0.77 | 1.2 | ≥80% |
220BX | 1146 | 0.75 | 1.54 | 2.2 | ≥80% |
250BX | 1528 | 1.0 | 2.12 | 3.2 | ≥80% |
280BX | 2292 | 1.5 | 3.1 | 4.7 | ≥80% |
320BX | 4584 | 3.0 | 6.2 | 9.5 | ≥80% |
370BX | 6112 | 4.0 | 8.66 | - | ≥80% |
Note 1: Rated torque is the output torque at an output speed of 15r/min. Input power values account for the transmission efficiency of the reducer.
Note 2: Torque calculation formula: T=9549×P×η/N (T: Torque in N·m, P: Power in kW, N: Speed in r/min, η: Efficiency in %).
The reducer is the core transmission component for 6-axis industrial robots, collaborative robots, SCARA robots, and automated handling systems, ideal for robot joints, rotary axes, and end effectors in welding, assembly, palletizing, and sorting applications.
Suitable for rotary tables, spindle drives, tool changers, and feed systems of CNC milling machines, lathes, and machining centers, delivering ultra-high positioning accuracy and rigidity to improve machining precision and surface finish.
Compatible with medical diagnostic devices, laboratory automation systems, and surgical robots, with low vibration, low noise, and stable precision performance that meets the strict requirements of medical and cleanroom environments.
Applied in satellite antenna tracking systems, ground-based aerospace testing equipment, and optical tracking systems, providing high reliability and long-term stable operation in complex and harsh working environments.
All core load-bearing components, including cycloidal gears, crankshafts, and pin teeth, are made of high-strength alloy steel with vacuum carburizing and quenching heat treatment, achieving uniform surface hardness and excellent impact toughness. High-precision tapered roller bearings and cage-type needle roller bearings ensure stable operation under continuous heavy load conditions.
We adopt 5-axis linkage CNC machining for core components, with gear machining accuracy up to ISO grade 4. All parts are inspected in a constant temperature testing workshop to ensure dimensional consistency. Every finished reducer undergoes full-load performance testing, backlash testing, and noise testing before delivery to guarantee compliance with design specifications.
We provide flexible customization and one-stop transmission solutions to meet the diverse needs of industrial equipment manufacturers and project-specific requirements:
Custom reduction ratios, mounting dimensions, and flange designs to match your specific servo motor and installation requirements
Custom input and output configurations, including solid shaft, hollow shaft, and custom keyway designs
Custom protection grades and surface treatments for harsh working environments such as high humidity, dust, and corrosion
Full OEM/ODM services, including custom branding, packaging, and co-development of application-specific reducer solutions, with dedicated engineering support for your project from design to mass production
RV cycloidal reducers have significantly higher fatigue strength, impact resistance, and service life than harmonic drives. Most critically, RV reducers maintain stable backlash and positioning accuracy over long-term use, while harmonic drives often experience noticeable accuracy degradation as operating time increases, making RV reducers the preferred choice for high-precision, heavy-duty industrial robot applications.
Yes, we provide full custom design services for industrial robot joint reducers, including custom reduction ratios, mounting dimensions, input/output configurations, and protection grades. Our engineering team will work directly with your R&D team to develop a tailored solution that meets your project's specific performance requirements.
For standard models, the bulk order lead time is typically 15-25 working days. For custom or OEM orders, the lead time will be confirmed based on the customization scope, usually within 30-45 working days. We also maintain a safety stock of core standard models to support urgent order requirements.
Under proper installation, lubrication, and rated operating conditions, our RV cycloidal reducers have a design service life of over 20,000 hours of continuous operation. Actual service life can be extended with regular maintenance and operation within the rated load range.
Contact our engineering team now to get a free technical consultation and customized quote for your industrial transmission project. We also provide full technical datasheets, 3D model files, and sample testing support for industrial business clients. Inquire now to learn more about our bulk procurement pricing and OEM/ODM cooperation terms.