There are many types of gear drives such we :
- Helical
- Spur
- Bevel
- Worm gear
- Helical and bevel gear drive are most preferred and quite efficient out of them.
- Spur gears though found in many older systems, avoided in the new system due to their low efficiency.
- Up to 10-15 hp applications, worm gears prove economical over helical gear.
- Helical gears have opted for larger loads.
- Less efficient worm gears may required motor of a large size to drive given load than a helical gear set up to of a compared size.
- Helical, bevel gears instead of inefficient worm gear can help to achieve energy conservation.