Variable Pitch Pulleys



  • For Use with 4L, 5L, A, or B section V-Belts
  • Permit downward speed variations of approximately 30%
  • Ideal for applications where speeds must be changed or unable to predetermine the correct speed
  • Furnished with socket head set screws
  • Available with & without Keyway
  • 1 1/2”-24 Pitch Thread for Adjustment
  • Non-Corrosive - Non-Toxic - Impact Resistant - Built to Last!
  • Spark Free

Variable Pitch Pulleys


Minimum & Maximum Pitch Diameters
3L Belt 4L Belt 5L Belt Dimensions
Part Number Min. Turns Max. Turns Min. Turns Max. Turns Min. Turns Max. Turns G Approx.
1/2” Bore 5/8” Bore 3/4” Bore 1” Bore O.D. Style P.D. Open P.D. Open P.D. Open P.D. Open P.D. Open P.D. Open Min. Max. K L Wt. lbs
VP325X050 VP325X062KW VP325X075KW 3 1/4 1 1.8 6 2.6 0 2.1 7 3.1 0 2.4 9 3.2 2 15/32 7/8 5/8 1 1/8 0.84
VP350X050 VP350X062KW VP350X075KW 3 1/2 1 2.1 6 2.9 0 2.4 7 3.4 0 2.9 7 3.5 2 15/32 25/32 11/16 1 1/8 0.99
VP375X050 VP375X062KW 3 3/4 1 2.2 6 3.1 0 2.6 7 3.6 0 3.1 7 3.7 2 15/32 25/32 11/16 1 1/8 1.12
VP400X050 VP400X062KW VP400X075KW VP400X100KW 4 2 2.6 6 3.4 0 2.9 7 3.9 0 3.2 7 4.0 1 15/32 7/8 3/4 1 25/32 1.66
VP450X050 VP450X062KW VP450X075KW VP450X100KW 4 1/2 2 3.0 6 3.8 0 3.3 7 4.3 0 3.7 7 4.5 1 15/32 7/8 3/4 1 25/32 1.83


Congress Drives 2501 Brombeck Street Ennis, TX 75119 Phone: 972-875-6060 Fax: 972-875-6160

Copyright Climax Metal Products / Congress Drives 2008