RV-N Series Context

Market context

Compact solid-shaft cycloidal reducer family for high-torque, low-backlash robotic and positioning axes.

Target environment: Industrial robots, machine tools, medical equipment, packaging machinery and heavy positioning systems
Workflow context: Robot-joint reduction, precision positioning, load handling and high-shock-load transmission
Customer context: Robot and machinery OEMs selecting a reducer across a broad torque range while retaining compact joint packaging.
Deployment model: Commercial component-set family with multiple sizes, CAD data, manuals and application support.
Commercial maturity: Commercial series spanning rated torques from 245 Nm to 28,000 Nm with current technical documentation.
Adoption constraints: Selection depends on torque and shock loads, reduction ratio, bearing loads, stiffness, mounting, lubrication, duty cycle and integration tolerances.
Adjacent products: Nabtesco RV-C and RD families, strain-wave reducers and planetary robot-joint gearboxes

Robot OEMs

Robot-joint reduction, precision positioning, load handling and high-shock-load transmission

Industrial robots, machine tools, medical equipment, packaging machinery and heavy positioning systems

Rated Torque Range: 245 to 28,000 Nm
Payload Capacity: permissible acceleration torque range: 612 to 70,000 Nm
Shock Load Capacity: Up to 5 times rated torque
Maximum Efficiency: Up to 85%
Features: hysteresis loss: <1.0 arcmin for most listed models; <2.0 arcmin for RV-2800N
Weight Range: 3.8 to 544 kg

RV-25N - Weight: 3.8 kg - Rated Torque: 245 Nm - Hysteresis Loss: <1.0 arcmin - Emergency Stop Torque: 1,225 Nm - Permissible Acceleration Torque: 612 Nm
RV-42N - Weight: 6.3 kg - Rated Torque: 412 Nm - Hysteresis Loss: <1.0 arcmin - Emergency Stop Torque: 2,058 Nm - Permissible Acceleration Torque: 1,029 Nm
RV-80N - Weight: 9.3 kg - Rated Torque: 784 Nm - Hysteresis Loss: <1.0 arcmin - Emergency Stop Torque: 3,920 Nm - Permissible Acceleration Torque: 1,960 Nm
RV-125N - Weight: 13.9 kg - Rated Torque: 1,225 Nm - Hysteresis Loss: <1.0 arcmin - Emergency Stop Torque: 6,125 Nm - Permissible Acceleration Torque: 3,062 Nm
RV-500N - Weight: 57.2 kg - Rated Torque: 4,900 Nm - Hysteresis Loss: <1.0 arcmin - Emergency Stop Torque: 24,500 Nm - Permissible Acceleration Torque: 12,250 Nm
RV-1500E - Weight: 280 kg - Rated Torque: 14,700 Nm - Hysteresis Loss: <1.0 arcmin - Emergency Stop Torque: 73,500 Nm - Permissible Acceleration Torque: 36,750 Nm
RV-2800N - Weight: 544 kg - Rated Torque: 28,000 Nm - Hysteresis Loss: <2.0 arcmin - Emergency Stop Torque: 140,000 Nm - Permissible Acceleration Torque: 70,000 Nm