Top Background Image
  • July 21, 2026

NMRV Worm Gear Reducer AC Motor Selection | Matching Guide

NMRV series aluminium worm gear reducers are widely matched with three-phase and single-phase AC motors for conveyor systems, packaging machinery, textile equipment and general automation lines. Proper motor matching directly affects transmission efficiency, service life and stable operation of the whole drive unit.

1. Core Parameters for NMRV & AC Motor Matching

●Rated motor power ●Input speed of AC motor●Required output torque & reduction ratio of NMRV gearbox●IEC mounting flange dimension●Service factor according to actual working conditions

2. Standard Matching Steps

1.Confirm equipment required output torque and rotating speed. 2.Calculate needed reduction ratio based on AC motor rated speed. 3.Select suitable NMRV frame size (025 ~ 150) according to torque demand. 4.Verify IEC flange compatibility between NMRV input side and AC motor. 5.Check service factor under continuous or intermittent load. 6.Confirm installation space, mounting orientation and cooling conditions.

Servo motor turbine reducer

3. Common Matching Notes●Avoid long-term overload operation; select proper service factor for shock load.●Check alignment between motor shaft and reducer input flange to prevent vibration.●Ensure adequate ventilation for heat dissipation.●Follow lubrication specifications for NMRV worm gear reducer4. Frequently Used Combinations

NMRV025–NMRV063 match small-power single/three-phase AC motors; NMRV075–NMRV150 support medium and high-power AC motors for heavy-duty conveying and processing equipment.
If you need custom flange connection or non-standard ratio configuration, please contact our engineering team for technical support.



Quick Inquiry