The belt drives are usually classified into the following three groups :
- Light Drives
- Medium Drives
- Heavy Drives
1. Light Drives
Light Drives are used to transmit small powers at belt speeds upto about 10 m/s, as in agricultural machines and small machine tools.
2. Medium Drives
Medium are used to transmit medium power at belt speeds over 10 m/s but up to 22 m/s, as in machine tools.
3. Heavy Drives
Heavy Drives are used to transmit large powers at belt speeds above 22 m/s, as in compressors and generators.
Types of Flat Belt Drives
- Open belt drive
- Crossed Belt Drive or twist belt drive
- Quarter turn belt drive
- Belt drive with idler pulleys
- Compound belt drive.
- Stepped or cone pulley drive
- Fast and loose pulley drive