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  • July 15, 2026

What is NMRV Worm Gearbox?


NMRV Worm Gearbox – Definition

NMRV series is a right-angle worm gear speed reducer. A hardened steel worm (input) meshes with a

 bronze worm wheel (output) to transmit power at a 90° angle.

Key features: Compact design, single-stage high reduction ratios (7.5:1 to 100:1), and self-locking 

capability at higher ratios

NMRV aluminum shell reducer Common names: NMRV gearbox, RV worm reducer, worm gear speed

 reducer, right angle worm drive.


worm gear speed reducer Models: NMRV025, 030, 040, 050, 063, 075, 090, 110, 130, 150.

Typical applications: Conveyors, mixers, packaging machinery, hoists, gate drives, and industrial

 automation

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