Belt Drive

A belt used to transmit power between two shafts.

Flat Belt Drive

Flat belts running on smooth wheels.

Flat belt.

Toothed Belt Drive

The toothed belt is very efficient and does not allow any slip.

Toothed belt and sprocket.

Toothed (or Synchronous) belts are always more efficient than V-belt drives, but four considerations preclude them from many applications.

  1. They make a whirring sound that can be objectionable in some applications.
  2. They transfer more vibration and shock loads
  3. Unable to slip when driving loads that are susceptible to jamming.
  4. They are more sensitive to misalignment, which can cause them to wear unevenly or fail prematurely. This can be a problem where the drive motor or load is on a flexible mount as this can result in misalignment under certain load conditions. Under extreme conditions the flexibility can lead to the belt jumping.

V-Belt Drive

See also: Belt Noise, Cone Pulley, Flat Belt Drive, V Belt Drive.

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Subjects: Mechanical Engineering