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Variable Speed Pulleys - Precision Series

Variable Speed Pulleys - Precision Series
  • OAW = Overall Width
  • W = Width
  • VO = V Opening
  • VC = V Center
  • OD = Outside Diameter
  • B = Bore
Material: Glass reinforced nylon, with steel shafts and steel-clad flange for greater wear resistance. Speed range infinitely variable within standard ratio limits. Pulleys are shipped with a blue, heavy srength spring unless another srength spring is requested. For the FZX-B1 series, we recommend the heaviest blue spring be used if the pulley is to be run with 3/8 - inch width V-belt. Set screw supplied. *Close tolerance on Round Shaft *Molded Keyway *Precisely ground and Polished Shaft *Spring loaded and color coded to indicate spring pressure *Simple belt tensioning adjustments allows for speed changes from 2.25:1 up to 2.8:1
Part Overall Width Width V Opening V Center Outside Diameter Bore
Buy View
FZX-B1-1 2-1/8 1/2 1/2 1/4 1-7/8 1/4
FZX-B1-2 2-1/8 1/2 1/2 1/4 1-7/8 5/16
FZX-B1-3 2-1/8 1/2 1/2 1/4 1-7/8 5/8
FZX-B2-1 2-5/8 9/16 3/4 7/16 2-7/8 3/8
FZX-B2-2 2-5/8 9/16 3/4 7/16 2-7/8 1/2
FZX-B3-1 3 5/8 7/8 1/2 3-9/16 1/2
FZX-B3-2 3 5/8 7/8 1/2 3-9/16 5/8
FZX-B4-1 4-1/4 25/32 1 1/2 4-1/4 5/8
FZX-B4-2 4-1/4 25/32 1 1/2 4-1/4 3/4