Nantong Zhenkang ZKRV-20E Precision Cycloidal Reducer

MANUFACTURER DOCUMENTATION

Overview

Zhenkang ZKRV-E precision reducer. The 20E frame is rated at 167 Nm and 15 rpm output. The catalog separately specifies start-stop, impact and bearing load limits.

Read original manufacturer specification ↗

Published series specifications

Series ranges describe the product family. They are not interchangeable operating points.

Model: 20E
Disc-output ratios: 57 / 81 / 105 / 121 / 141 / 161
Rated output torque: 167 Nm at 15 rpm
Backlash / lost motion: 1 / 1 arcmin
Angular transmission accuracy: 60 arcsec
Start-stop / impact torque: 417 / 835 Nm
Maximum output speed: 75 rpm
Mass: 4.7 kg
Housing-output ratio: Disc-output ratio minus 1

Design & options

Published torque-speed and dimension tables
Separate allowable moment and thrust ratings
Cycloidal precision transmission

Applications to discuss

Robot joints
Precision automation

Model configuration table

6 source-backed configurations. Torque is in Nm, input speed in rpm and backlash in arcmin. The note preserves the rating conditions and precision grade.

Model	Ratio	Rated torque Nm	Backlash arcmin	Rated input rpm	Mounting	Rating conditions	Source
ZKRV-20E	57	167	1	Not stated	Not stated	Rated at 15 rpm output; disc output	Original ↗
ZKRV-20E	81	167	1	Not stated	Not stated	Rated at 15 rpm output; disc output	Original ↗
ZKRV-20E	105	167	1	Not stated	Not stated	Rated at 15 rpm output; disc output	Original ↗
ZKRV-20E	121	167	1	Not stated	Not stated	Rated at 15 rpm output; disc output	Original ↗
ZKRV-20E	141	167	1	Not stated	Not stated	Rated at 15 rpm output; disc output	Original ↗
ZKRV-20E	161	167	1	Not stated	Not stated	Rated at 15 rpm output; disc output	Original ↗

Before you specify this gearbox

General-purpose cycloidal reducers and precision RV reducers serve different requirements. Confirm the series, torsional stiffness and allowable moment loads.

Confirm continuous, peak and emergency-stop load limits separately.
Match the motor flange, shaft, mounting orientation and lubrication requirements.
Request the current drawing revision and selection calculation from the manufacturer.

Source & attribution

https://www.zhenkang.com/product_detail/570656.html
Checked 2026-09-22. Image and catalog data: Nantong Zhenkang.

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