Variable Pitch Pulleys

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Congress Drives Variable Pitch Pulleys are ideal for applications where speeds must be changed or where you are unable to predetermine the correct speed.

We offer 18 variable pitch pulleys with these features:

  • Designed for use with 4L, 5L, A, or B section V-Belts
  • 1-1/2″ – 24 Pitch Thread Adjustment allows for downward speed variations up to 30%
  • Available with or without Keyway
  • 5/8″ and 7/8″ Bore with 3/16″ x 3/32″ Keyway
  • 1″ Bore with 1/4″ x 1/8″ Keyway
  • All pulleys furnished with 5/16″ – 18 x 1/2″ socket head set screws
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