SPECIFICATIONS
| Model Number | UM-180-LK (Smooth-Start) |
| Series | UM Series Smooth-Start UniModules |
| Part Number | 5370-273-238 |
| Conduit Box (Optional) | 5370-101-042 |
| Function | Motor Clutch/Brake Combination for soft engagement |
| Voltage | 90 VDC |
| Static Torque | 18 lb-ft |
| Maximum Speed | 3600 RPM |
| NEMA Frame Size | 182C / 143TC and 184C / 145TC |
| Friction Material | LK Material (Low Torque / Long Life) |
| Compliance | UL Listed (Standard UL 508) |
| Component Parts | |
|---|---|
| Field Assembly (90 Volt) | 5370-451-209 |
| Magnet Assembly (90 Volt) | 5370-631-214 |
| Rotor Assembly | 5370-751-050 |
| Armature | 110-0075 |
| Armature Hub | 540-1638 |
| Shaft | 798-0298 |
| Ball Bearing (Magnet side) | 166-0150 |
| Ball Bearing (Output side) | 166-0143 |
| Housing (Input) | 535-0204 |
| Housing (Output) | 535-0206 |
| Mounting Accessory | 5370-101-072 |
| Tie Bolt | 5370-101-075 |
| Catalog | Warner Electric Smooth-Start UniModules Catalog | |
| Service Parts | Smooth-Start UniModules Service Parts Catalog |
PRODUCT DESCRIPTION
The Warner Electric 5370-273-238 is a Size 180 Smooth-Startâ„¢ UniModule. This pre-assembled clutch/brake package is engineered specifically for applications requiring “soft engagement” to protect sensitive products and mechanical components from the harsh shock of standard engagement.
By utilizing specialized LK friction material, the 5370-273-238 provides reduced torque for a less aggressive engagement. This allows for longer slip times during starts and stops without the significant loss of service life typically associated with standard friction materials.
FEATURES
- Smooth Engagement: LK friction material prevents aggressive mechanical shock.
- Extended Service Life: Engineered to tolerate longer slip times during dynamic cycling.
- Maintenance Free: Automatically compensates for wear to maintain consistent performance.
- NEMA Compatible: Designed for standard 182C/143TC and 184C/145TC frame sizes.
- Adjustable Control: Optimized for use with dual-channel torque controllers like the CBC-300.
SELECTION PROCEDURE
- Application Verification: Confirm the need for soft starts/stops.
- Frame Size Matching: Ensure the motor/reducer uses compatible NEMA 180 series frames.
- Operating Speed: Confirm the shaft speed is within the 3600 RPM maximum limit.
- Torque Verification: Ensure the 18 lb-ft static torque rating meets application requirements.
HOW TO ORDER
- Specify Model: Order Part Number 5370-273-238 for the Size 180 90V configuration.
- Select Control: Pair with the CBC-300 (6021-448-009) to independently adjust clutch and brake torque levels.
- Include Accessories: Order the optional Conduit Box (5370-101-042) for simplified wiring.
- Environmental Protection: If the unit will be exposed to dust or moisture, include a Cover Kit (5370-101-076).
Got a Question? We're Here To Help
- For Manuals, Catalogs & Documentation: See Files Section
- Need More Help? Contact Us



