Altra Worm Gearbox

1.1 Products characteristics

ALM 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 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.

1.2 Main materials

1. Housing die-cast aluminum alloy (frame size: 025 to 105); cast iorn (frame size: 110 to 150).
2. Worm 20Cr, carbonize & quencher heat treatment make the hardness of gear’s surface up to 56-62 HRC, retain carburization layer’s thickness between 0.3 and 0.5mm after precise grinding.
3. Worm wheel: wearable stannum bronze alloy.

1.3 Surface painting

Aluminum alloy housing:
1. Shot blasting and special antiseptic treatment on the aluminum alloy surface. 2. After phosphating, paint with RAL 5010 blue or silvery white paint.
Cast iron housing:
First paint with red antirust paint, then paint with RAL 5010 blue or silvery white paint