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- Spring Actuated, Air Return
- High Coefficient Facing
- 727.00 hp Peak Thermal Input
- 80.0 psi Max Pressure
- 1,000 rpm Max
applications
- Heavy-duty industrial applications requiring high torque and low inertia
features
- Hub provided loose for machining
- Spring engaged
- Quad interface
- Shaft mounted
- Straight bore
- Brake with up to 164,800 in lb of torque
- Air is supplied directly at cylinder air inlets
- Air released
- Available in disc sizes from 11.500" to 25.000"
- Available with either standard or high coefficient friction facings
- Bore sizes range up to 6.000"
- Four interface surfaces
- O-ring sealed piston and cylinder design reduces maintenance costs
- Rugged design ensures long product life
- Speeds up to 2,200 rpm
- Spring-engaged
- Static torque ratings up to 164,800 in lb
- Thermal horsepower values up to 14.7
- Through-shaft or shaft-end mounted
caution
- Any sliding spool valve, if held for long periods of time, may stick and not spring return due to fluid residue formation and therefore should be cycled periodically to prevent this from happening
| Brake Facing Edge Color Code | Purple |
| Product Category | Shaft Mounted Spring Engaged Brakes |
| Maximum Brake Continuous Thermal Dissipation | 14.7 hp |
| Brake Facing Effective Area | 808 in2 |
| Open Or Enclosed Design | Open |
| Finish | Black Oxide |
| Maximum Pressure | 80 psi |
| Family Name | Multiplate Brakes |
| Bore Range [Max] | 6.5 in |
| Actuation/Return | Spring/Air |
| Bushing Series | RSB |
| Model | QFB-2500 |
| Type | Element |
| Maximum Static Brake Torque | 164800 in lb |
| Kits | 964026, 964038 |
| Bore Range [Min] | 3.5 in |
| Brake Peak Thermal Input Rate | 727 hp |
| Brake Facing Type | High Coefficient |
| Main Category | Brakes |
| Control Accessories | 170012, 170013, 170014, 170017, 170020, 170021, 170023, 170024, 939101, 939201, 939400, 940001, 940425, 945125 |
| Recommended Control Kits | 940019, 940020 |
| Approximate Brake Facing Life | 18400 hp-hr |
| Inside Dia. | N/A |
| Manufacturer Family | Model QFB 2500-H, Quad Faced, Spring Engaged, Plate Brake, (HICO Facing), Model QFE 2500-H Quad Faced Plate Brake |
| Photo | DFB |
| Brake Heat Sink Capacity | 2920000 lbf ft |
| Bushing Type | Unfinished Pilot Bore |
| Approximate Brake Facing Life In Work Energy | 3.428452e+010 lbf ft |
| Bore Style | Unfinished Pilot Bore |
| Port or Hose Size | 0.500 NPT |
| Weight | 848.0 LB |
| EAN or UPC | 662284169837 |
