- Worm Gear Speed Reducers.
- Helical Shaft Mount Speed Reducers.
- Helical Offset Shaft Speed Reducers.
- Parallel Shaft Speed Reducers.
- Right-Angle Bevel Gear Speed Reducers.
Factors in selecting speed reducer include
1. Environmental factor
Most standard reducers are intended for indoor or outdoor
installation in a relatively clean and nonabrasive atmosphere with
an ambient temperature range of 15 to 125 F.
2. Operating condition
Unusual operating conditions include nonstandard mounting
positions (inclined), high inertial loads, torsional vibrations,
and a large number of starts or stops (over five per hour).
3. Motor type
Speed reducer catalogs usually contain information on motor
compatibility, mounting arrangements, and dimensions.