ISO9001 Certificate NRV F Series NRV Series Electric SEW Speed Reducer for Motor

Aluminum alloy speed gearbox, worm gear box, gear reducer 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

Direct factory provide gearbox motor/ transmission gearbox/ mechanical gearbox

    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

Direct factory provide gearbox motor/ transmission gearbox/ mechanical gearbox 

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

Detail Accessories

Please read before use

1. Load condition

2. Speed of rotationi or speed ratio (combination with combine speed reducer can get extra low outputing rotational speed)

3. Work circumstance (temperature, humidity, corrosion etc.)

4. Space of installation

Since Nayuan Transmission Machinery has abundant experience in offering OEM service and all the workers have worked in this industry more than three years, our company can deliver the items to you in 7-15 workdays after receiving 30% deposits.

Our Nmrv090 50:1 low price manual worm gearbox, electric motor speed reducer is guaranteed with superior quality and our technicians will provide excellent technological support and the 24-hour self-service center is also available.

Our main products are gearbox, reducer, gear, worm, worm gearbox, worm reducer, speed gearbox, transmission, drive part, motor, coupling, planetary gearboxes, helical gearboxes, Sprockets Gears and Racks, variators, Timing Belt Pulleys and v pulleys and sheaves, shaft collars and motor bases, Chains and Belts, shaft and agricultural gearboxes, Bushes and Hubs Couplings, screw jacks and housing. Kindly, if you need Gearbox, please send us the Model, Ratio and Quantity. Then I will give you the best offer 

    Hangzhou Nayuan Transmission Machinery Co., Ltd. is a professional company specializing in manufacturing reduction machine such as worm gear reducer, worm gear screw jack, stepless speed vibrator. If what you are interested is not listed above, just feel free to contact our professional customer service team.

    After years of development, Nayuan has established a strong research and development team, together with our experienced and well-trained working staff, our company can manufacture a wide array of driving equipment.

    The quality control staff guarantees the excellent quality of all our products. Our high quality transmission machinery has been exported to many countries around the globe