NMRV-NRV Worm Gear Speed Reduction Unit

RV series worm gear speed reducers:

size:025,030,040,050,063,075,090,110,130,150(center to center spacing)

speed ratio:5,7.5,10,15,20,25,30,40,50,60,80,100

high quality Tn bronze worm wheel

exported NSk bearings

high quality synthetic lubricant oil

1,light weight and small size can save place for mounting.

2.suitable for omnibearing installation,efficient radiator.high carrying ability

3.run steadly and low noise,high reliability and large speed ratio rang.

4.strongad aptability,big load capacity,and long operating life

NMRV025-150 is made by Nayuan Transmission Machinery has many advantages compared with the speed reducer made by other company. Our company worm gearbox available in a vast range of sizes and ratios for dependable cost effective solutions. Nayuan Transmission adopts high quality aluminum alloy die casting box to manufacture worm gear reducer to ensure a long reliable working life. Our worm gear speed reducer features in light weight, good appearance, compact structure and rust-proof. Nayuan can provide worm gear speed reducer with various reduction ratios for the customers to choose.

Structure Features

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    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 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

Gearbox Materials

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    1. Housing: die-cast aluminum alloy (Housing size: 025-090); cast iron (Housing size: 110-150)

    2. Shaft: 20Cr, carbonize and quencher heat treatment make the hardness of gear tooth surface up to 56-62 HRC, retain carburization layer’s thickness between 0.3-0.5mm after precise grinding

    3. Worm Wheel: Wearable bronze alloy

Surface Painting

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For Aluminum Alloy Housing:

    1. Shot blasting and special antiseptic treatment on the aluminum alloy surface

    2. After phosphating, paint with blue or sliver.

For Cast Iron Housing:

    Before paint with blue or sliver, need paint with red antirust pain first.

Direct factory provide gearbox motor/ transmission gearbox/ mechanical gearbox