- Air Actuated, Spring Release
- High Coefficient Facing
- 727.00 hp Peak Thermal Input
- Flange Mount Drive Arrangement
- 80.0 psi Max Pressure
applications
- Heavy-duty industrial applications requiring high torque and low inertia
features
- The hub for this product is provided loose for machining
- Air engaged
- Quad interface
- Shaft mounted
- Straight bore
- Rugged design ensures long product life
- Bore range up to 6.500"
- Horizontal shaft-end mounted clutch element mounts to a customer-supplied flywheel, gear, or pulley
- Maximum operating sped up to 1,600 rpm
- Quad-faced
- Sealed O-ring piston and cylinder design reduces maintenance costs
- Shaft-end mount clutch
- Sheaves sold separately
- Single disc assembly
- Static torque ratings up to 302,000 in lb at 80 psi
- Thermal horsepower values up to 14.7 at 900 rpm
- Through-shaft or shaft-end mount brake
caution
- When the drive is operated on other than horizontal shafts, or when the center distance is greater than eight times the diameter of the smaller pulley on drive ratios less than 3:1, both pulleys should be flanged
- When a drive has three pulleys, at least two should be flanged
- If the drive has more than three pulleys, every other pulley should be flanged
options
- Air union bracket assembly includes flexible hose
- Double-disc assemblies available in four disc sizes
- Hig -coefficient friction linings
| Port or Hose Size | 0.750 NPT |
| Recommended Control Kits | 940019, 940020 |
| Clutch Facing Edge Color Code | Purple |
| Clutch Air Chamber Volume When Worn Out | 206.7 in3 |
| Main Category | Friction Clutches |
| Bore Range [Max] | 6.5 in |
| Bore Style | Unfinished Pilot Bore |
| Clutch Air Chamber Volume When New | 39.27 in3 |
| Clutch Peak Thermal Input Rate | 727 hp |
| Maximum Pressure | 80 psi |
| Open Or Enclosed Design | Open |
| Maximum Static Clutch Torque | 302000 in lb |
| Control Accessories | 170012, 170013, 170014, 170017, 170020, 170021, 170023, 170024, 939101, 939201, 939400, 940001, 940425, 945125 |
| Clutch Facing Effective Area | 808 in2 |
| Finish | Black Oxide |
| Kits | 964038, 964097 |
| Photo | DFB |
| Clutch Heat Sink Capacity | 2920000 lbf ft |
| Accessory Miscellaneous | 964015 |
| Maximum Clutch Continuous Thermal Dissipation | 14.7 hp |
| Actuation/Return | Air/Spring |
| Outside Dia. | 30 in |
| Family Name | QFE Clutches |
| Drive Inertia | 419.4 lb ft2 |
| Manufacturer Family | Model QFE 2500-H Quad Faced Clutch |
| Drive Arrangement | Flange Mount |
| Clutch Facing Type | High Coefficient |
| Overall Length | 16.46 in |
| Product Category | Dual And Quad Plate Clutches |
| Minimum Engagement Pressure | 10 psi |
| Bore Range [Min] | 3.5 in |
| Model | QFE-2500 |
| Approximate Clutch Facing Life | 18400 hp-hr |
| Weight | 930.0 LB |
| EAN or UPC | 662284169677 |

