Altra & IBT
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Warner Electric has announced the latest addition to their product offerings: Unibrake® AC Motor Brakes.
Warner Electric spring applied motor brakes decelerate or park inertial loads when the voltage is turned off, whether intentionally or by accident. The friction disc with the hub is coupled to the motor shaft to be braked. When power is off, a spring force clamps the friction disc between a pressure plate and a stationary plate stopping the load. When AC voltage is applied, the solenoid creates a direct acting magnetic force which releases the friction disk without the use of a linkage. This allows the hub and motor shaft to then turn freely.
Unibrake® AC motor brakes have special features: external manual release lever; enclosed construction; splined hubs and friction discs; torque adjustable from full rated torque down to 50 percent.
The motor brakes are commonly used as parking brakes to hold a load in place or as stopping brakes to dynamically decelerate a load. Applications include: material handling; food processing; and machine tools
Two styles are available: the single C-Face brake and the double C-Face brake. The single C-Face mounts on the non-driven end of a motor. Single C-Face brake is designed for motors that are modified to accept a brake. The double C-Face brake can be used as a coupler between standard C-Face motors and C-Face gear reducers. All motor brakes are interchangeable with competitive motor brakes.
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Unibrake® AC Motor Brakes |
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C-Face, Power-Off Brakes |
F Series AC Rear-Mounted Brakes with NEMA 2 Housing
Aluminum Head-Steel Cover - 56,000 NEMA 2; 56,100 NEMA 2; 56,300 NEMA 1 |
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C-Face, Power-Off Brakes are designed to decelerate or hold inertia loads when the power is turned off. The single C-Face mounts on the non-driven end of a motor. Brakes are available from 3 ft. lb. to 15 ft. lb. |
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C-Face, Power-Off Brakes with Heavy-Duty Enclosures |
F Series AC Rear-Mounted Brakes with NEMA 2 or NEMA 4 Housing
Cast Iron Head and Cover - 56,200 NEMA 2 or NEMA 4 |
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Available with cast iron housing for applications involving corrosive environments. The heavy-duty housing also includes o-ring seals to create a dust-tight brake. Brakes are available from 3 ft. lb. to 15 ft. lb. |
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Double C-Face, Power-Off Brakes |
M Series AC Coupler Brakes with NEMA 2 Housing
Aluminum Head and Cover - 56,700 NEMA 2 |
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Designed for use as a coupler between standard C-Face motors and C-Face gear reducers. |
