Model: P491DOR

491 series, pneumatic double acting caliper disc brake with springs retractable pistons. Sized for 1.0 inch thick brake disc.

  • Spring Retractable Pistons
  • Aluminum Construction
  • Hardcoated
  • Fits on Brake Discs with Unlimited Diameter
  • Replaceable Friction Pads (WCB p/n 4251-1030)
  • Internal Crossover Porting
  • Dynamic torque (inch/lb): 353.5 lbf per 100 psi x braking radius
  • Power Factor: 491 Series 5X, 38 Series 1X, 47 Series 2X, 200 Series 4X, 962 Series 10X


Model # P491DOR
Description Double Acting, Fixed Mount. Use Fixed or Floating Disc
Additional Info Dual Retractable Pistons
Disc Thick. (in.) 1.0
Fluid Displacement 0.147 cu. in.
Fluid Type Air
Max. Pressure, PSI 200
Piston Dia. 2.5 in.
Seals Buna-N
Total Pad Area 9.14 sq. in.
Wearable Friction Material 2.00 cu. in.
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