NMRV series worm gear units is a new-generation of product developed by our company on the basis of
perfecting WJ series products with a compromise of advanced technology both at home and abroad. Its main
features are as follows;
1.Made of high-quality aluminum alloy, light weight and non-rusting.
2.Large 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.
1. Housing: die-cast aluminum alloy(frame size 025 to 090);cast iron(frame size:110 to 150);
2. Worm: 20Cr, carbonize&quencher heat treatment make the hardness of gear's surface up to
56-62HRC,retain carburation layer's thickness between 0.3 and 0.5mm after precise grinding.
3. Worm wheel: wearable stannum bronze alloy.
Aluminum alloy housing:
1.Shot blasting and special antiseptic treat-ment on the aluminum alloy surface.
2.After phosphating, paint with RAL5010 blue or silvery white paint.
Cast iron housing: First paint with red antirust paint, then paint white RAL5010 blue or silvery white paint.