4251-0075
Model: P491DER
491 series, pneumatic double acting caliper disc brake with springs retractable pistons. Sized for 1/2 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
| Additional Info | Dual Retractable Pistons |
| Description | Double Acting, Fixed Mount. Use Fixed or Floating Disc |
| Disc Thick. (in.) | 1/2 |
| Fluid Displacement | 0.147 cu. in. |
| Fluid Type | Air |
| Max. Pressure, PSI | 200 |
| Model # | P491DER |
| 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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