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RV series RV030,RV040,RV050,RV063 worm gearbox with motor

Worm Drive Gearbox Technical Parameter:

Gear unit size :   025,030,040,050,063
Output Torque :  4~2320 N.m
Input Speed :  750-1750 rpm
Output Speed :  14~186.7rpm
Ratio :  7.5,10,15,20,30,40,50,60,80,100
Housing Material :  Aluminum & Iron casting
Input Form :  IEC flange / Square flange.
Catalog Download :  



Characteristics of RV series worm gearbox with motor

The worm gearbox assembly from worm wheel, worm gear, housing, oil seal, bearings, etc.SDT Transmission as one of worm gearbox manufacturers, the hollow shaft type worm gear reducer is equipped with a helical gear unit at the input end of the worm gear reducer. The multi-stage gear reducer can achieve a very low output speed. It is a combination of the helical gear stage and the worm gear stage. The single-stage worm gear reducer has higher efficiency. moreover, the gearbox’s vibration is small, the gearbox’s noise is low, and the energy consumption is also low. our worm gearbox with motor size are as following:

Gear unit size Ratio range


Output torque


Input power


Service factor Net weight


Unit Material


Structure Features
    1. Made of high-quality aluminum alloy, light in weight and non-rusting
    2. Large in output torque
    3. Smooth in running and low in noise, can work a long time in dreadful conditions
    4. High in radiating efficiency
    5. Good looking in appearance, durable in service life, and small in volume
    6. Suitable for Omnibearing installation

More Specification of worm drive gearbox  :

Model:   NMRV025, 030, 040, 050, 063,
Ratio:  1:5,7.5,10,15,20,25,30,40,50,60,80,100
Color:   Blue, Silver, other.
Noise:   low noise (<50 dB)
Material:  Housing: die-cast aluminum alloy (Housing size: 025-090); cast iron (Housing size: 110-150)
 Worm Gear: Bronze 9-4#
 Worm wheel: 20CrMn Ti with carburizing and quenching, the surface hardness is 56-62HRC
 Worm shaft: chromium steel-45#
Packing:   Carton and Wooden Case
Bearing:   C&U Bearing
Seal:   NAK SKF
Certificate:   ISO9001,CE,3C
Warranty:   12 months
Input Power:   0.12kw, 0.18kw, 0.25kw, 0.37kw, 0.55kw, 0.75kw, 1.1kw, 1.5kw, 2.2kw, 3kw, 4kw, 5.5kw, 7.5kw, 11kw, 15kw
IEC Flange:   56B5, 56B14, 63B5, 63B14, 71B5, 71B14, 80B5, 80B14, 90B5, 90B14, 100B5, 100B14, 112B5, 112B14, 132B5, 160B5
Lubricant:   Synthetic & Mineral














Aluminum case worm drive gearbox wide used on the different industry like food machine, conveyor equipment, industrial machine,food stuff, Ceramics, chemical, packing, dyeing, woodworking, glass. etc.