nmrv090 gear speed reducer drive , ac worm gear motor, aluminium alloy worm gearbox

NMRV090 gear speed reducer drive

Quick Details

Gearing Arrangement: Worm
Output Torque: 100N.M~~456N.M
Rated Power: 0.55~~4.0kw
Input Speed: 1400rpm
Output Speed: 14~~186rpm
Speed ratio: 7.5/10/15/20/25/30/40/50/60/80/100
Housing material: Aluminium alloy
Worm gear material: chromium alloy 20CrMnTi
Worm wheel material: bronze ZQsn10-1
Bearing: Import brand or China brand bearing
Color: Blue/Silver/Coustomzied
Package size: 260*265*335mm
Package weight: 16kg
Certificate: ISO9001:2008 CCC,CE
Extra service: OEM



(1) Large output torque
(2) Safe, reliable, economical and durable
(3) Stable transmission, quiet operation
(4) High heat-radiating efficiency, high carrying ability
(5) Combination of two single-step worm gear speed reducers, meeting the requirements of super speed ratio


Notice for ordering

1) when ordering,please refer to the details of the products and tell us the exact type your need according to your requirements,like input speed,output torque,configuration,installation,etc:the installation position of the products in the order should accord with your actual needs,otherwise, it will result in oil leakage, which will impact the serving life of the products negatively.if there is special requirement to the installation position,please stress it and inform us.

2) to attain the excellent state of the variators, the common working speed should be chosen in the middle position,instead,it ismot appropriate to choose in the positions of min,or max.speed

3) if your requirements of worm gearbox or speed variator are different from shte standard products as in the catalogue,like:some portion that should be customized or mounted with special motors,please inform us in advance


Technical data

ModelRV025 030 040 050 063 075 090 110 130 150
Single unit versionsNMRV - fitted for motor flanged coupling,

NRV - with input shaft,

NMRV-E motor flanged coupling with worm extension shaft,

NRV-E with double extension worm shaft,

 Single unit reduction ratio 1:5 7.5 10 15 20 25 30 40 50 60 80 100
 Output torque 2.6---1195N.M
 Worm shaft 20CrMnTi with carburizing and quenching.The hardness of surface is 56-62HRC with carbonized layer 0.5-0.8mm
 Worm wheel worm mandrel is HT250,and worm ring gear,ZQSn10-1