SPECIFICATIONS
| Model Number | 5380-101-005 (FB-375-5/8) |
| Series | FB Series Electrically Released Brakes |
| Component Type | Shaft Adapter / Bushing |
| Voltage (System) | 90 VDC |
| Static Torque | 10.5 lb. ft. |
| Maximum Speed | 5000 RPM |
| Bore Size | 0.625 in (5/8″) |
| Mounting Type | Shaft Mounted (Single Shaft Extension Motors) |
| Construction | Rugged, Pre-assembled Component |
| Catalog | Warner Electric Permanent Magnet Electrically Released Brakes Catalog | |
| Service Parts | Warner Electric FB Series Service Parts Catalog |
SERIES DESCRIPTION
The Warner Electric FB Series Electrically Released Brakes operate on the principle of permanent magnet attraction. These units provide full braking torque when power is removed (fail-safe) and are released by applying DC power to an electromagnetic coil that opposes the permanent magnets.
The FB-375 is the compact entry in this series, designed for high-cycle rates and rapid response. The 5380-101-005 adapter is the 90 VDC version designed to securely key and mount the brake to a standard 5/8″ motor shaft.
Key Features
- Autogap® Technology: Automatic wear adjustment ensures consistent performance and eliminates manual air-gap maintenance.
- High Heat Dissipation: Segmented armature design allows for cooler operation and a longer service life.
- Fail-Safe Operation: Automatically engages during power loss, providing reliable holding torque.
- 90V Industrial Voltage: Standard coil voltage for most industrial motion control and Rectifier-based systems.
Application Note
This shaft adapter is specifically for single shaft extension motors. For double shaft extension motors, the adapter may be eliminated in certain configurations—always verify your specific motor shaft dimensions and keyway requirements before installation.
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