Model: H491SORF

491 series, hydraulic single acting caliper disc brake with spring retractable piston and float plates. Sized for 1.0 inch thick brake disc.

  • Spring Retractable Piston
  • Aluminum Construction
  • Hardcoated
  • Fits on Brake Discs with Unlimited Diameter
  • Replaceable Friction Pads 1 Ea. on the Piston: (WCB p/n 4251-1030) and 1 Ea. on the Non-Pressure Side Housing (WCB p/n 4000-1014).
  • 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 # H491SORF
Description Single Acting, Floating Mount. Use Fixed Disc
Additional Info Single Retractable Piston
Disc Thick. (in.) 1.0
Fluid Displacement 0.0735 cu. in.
Fluid Type Hydraulic Oil
Max. Pressure, PSI 1500
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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