NMRV worm gear motor is a specific gear composition in which a screw (worm) meshes with a gear/wheel similar to a spur gear.

The set-up allows the user to determine the rotational speed and also allows for a higher torque to be transmitted.

This mechanism can be found in heavy machinery.

Main Materials Housing: die-casting aluminum alloy(frame size: 025 to 090); cast iron(frame size: 110 to 150); 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. Worm wheel: wearable stannum bronze alloy.

Surface Coating Aluminum alloy shell First of all, the shell through surface pellet blasting treatment, and then through special anti-corrosion treatment, to maintain the sense of silver white metal, and through the corrosion treatment of gasoline, xylene and other organic solvents. After phosphating treatment, spray RAL5010 blue or white paint in the shell. Cast iron shell: spray red anti-rust paint, then spray blue RAL5010 paint in the shell.