Precision Mechanical Hollow Output Shaft RV Reducer for Industrial Robotics

Name: Precision Mechanical Hollow Output Shaft RV Reducer for Industrial Robotics
SKU: 0

● Introduction

The Standard RV Reducer C Series is a precision mechanical reduction device designed with a two-stage closed differential gear system, combining a cycloid pinwheel and planetary gear structure. It features a hollow output shaft and is widely used in industrial robotics.For robotic arms with end loads ≤20 kg, RV reducers are primarily used in base-to-high-load joints (typically Joints 1-4).For robotic arms with end loads >20 kg, all six joints typically use RV reducers.RV reducers are critical transmission components ensuring robotic arm positioning accuracy.

Features

●Hollow Output Shaft

Allows routing of cables and pipes through the center.

●Two-Stage Reduction Design

First Stage: Involute planetary gear transmission for initial speed reduction.

Second Stage: Cycloid pinwheel transmission for further speed reduction and torque stabilization.

●High Rigidity & Impact Resistance

Rigid disc support at the output ensures even load distribution, minimizing deformation.

Multi-crank shafts paired with high-precision bearings disperse stress impacts.

●Compact Enclosed Structure

Transmission mechanism is integrated into the planetary carrier support bearings, significantly reducing axial size.

Advantages

●High Load Capacity & Precision

Torque range: 50–7000 N·m, suitable for heavy-duty robotic arms (e.g., welding, handling robots).

Backlash precision: <1 arcmin, minimal repeat positioning error.

●Long Lifespan & High Reliability

Multi-tooth meshing (≥30 teeth) ensures even wear, extending service life to 6,000–10,000 hours.

Superior fatigue resistance compared to harmonic drives, ideal for 24/7 continuous operation.

●High Efficiency & Adaptability

Transmission efficiency: 85%–95%, minimizing energy loss.

Wide reduction ratio range (31–203), adjustable via planetary gear teeth count.

●Outstanding Dynamic Performance

Low-vibration design ensures smooth robotic arm operation, eliminating end-effector jitter.

Fast acceleration response, enabling high-speed trajectory tracking.

Specification

Sheet 1

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	Output Speed r/min			5	10	15	20	25	30	40	50	60	Maximum Allowable Output Speed r/min	Allowable Acceeraton/ Deceleration Torque N.m	Momentary Maximum Allowable Torque N.m	Allowable Bending Moment N.m	Momentary Maximum Allowable Bending Moment N.m	Torsional Rigidity N.m/ arcmin	Maximum Lost Motion arcmin	Backash arcmin	Angle Transfer Error arcsec	Allowable Radial Load N	Conversion Value of lnertia Moment of Input Shaft Kgm²	Inertia Moment of Standard Center Gear Kgm²	Rated life h	Weight Kg
Model	Speed Ratio	Reduction ratio		Output Torque N.m Input Power kW
Model	Speed Ratio	Shaft speed	Casing speed	Output Torque N.m Input Power kW
10C	27	27	26	136 0.09	111 0.16	98 0.21	90 0.25	84 0.29	80 0.34	73 0.41	68 0.47	65 0.54	80	245	490	686	1372	47	1.0	1.0	70	5755	1.38×10-5	0.678×10-3	6000	4.6
27C	36.57	1390/38	1352/38	368 0.26	299 0.42	265 0.55	243 0.68	227 0.79	215 0.90	197 1.10	184 1.29	174 1.46	60	662	1323	980	1960	147	1.0	1.0	70	6520	0.55×10-4	0.563×10-3	6000	8.5
50C	32.54	1985/61	1924/61	681 0.48	554 0.77	490 1.03	450 1.26	420 1.47	398 1.67	366 2.04	341 2.38		50	1225	2450	1764	3528	255	1.0	1.0	60	9428	1.82×10-4	0.363×10-2	6000	14.6
100C	36.75	36.75	35.75	1362 0.95	11071.55	980 2.05	899 2.51	841 2.94	796 3.33	730 4.08			40	2450	4900	2450	4900	510	1.0	1.0	50	11802	0.475×10-3	0.953×10-2	6000	19.5
120C	36.75	36.75	35.75	1422 0.992	1308 1.825	1176 2.46	1085 3.03	907 3.61	823 3.45	765 4.27			40	2940	5880	3920	7840	588	1.0	1.0	50	18700	0.475×10-3	0.953×10-2	6000	21
200C	34.86	1499/43	1456/43	2724 1.9	22153.09	1960 4.11	1803 5.04	1686 5.88	1597 6.69				30	4900	9800	8820	17640	980	1.0	1.0	50	31455	1.39×10-3	194×10-2	6000	55.6
320C	35.61	2778/78	2700/78	4361 3.04	3538 4.94	3136 6.57	2881 8.05	2690 9.41					25	7840	15680	20580	39200	1960	1.0	1.0	50	57087	0.518×10-2	0.405×10-1	6000	79.5
320CA	211	211	210	4361 3.04	3538 4.94	3136 6.57	2881 8.05	2690 9.41					25	7840	15680	20580	39200	1960	1.0	1.0	50	57087	4.59×10-4		6000	92.1
500C	37.34	3099/83	3016/83	6811 4.75	5537 7.73	4900 10.26	4498 12.56						20	12250	24500	34300	78400	3430	1.0	1.0	50	82970	0.996×10-2	1.014×10-1	6000	154

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