Bridgeport 1.5 HP Variable Speed Adjustable Drive Disc Motor Shaft Key
Replace a worn, damaged, or missing motor shaft key with this replacement for American-made Bridgeport 1.5 HP variable speed milling machines.
Designed to replace OEM #1182121, this key fits the motor shaft at the adjustable variable drive disc and helps maintain secure engagement between the shaft and drive components.
Specifications
- OEM Part Number: 1182121
- Fits American-made Bridgeport 1.5 HP variable speed milling machines
- Component: Adjustable variable drive disc motor shaft key
- Mounting Location: Motor shaft at the adjustable variable drive disc
Compatibility
- Fits 1.5 HP variable speed Bridgeport mills
- Will not fit 2 HP variable speed machines
- Will not fit step pulley machines
Features
- Direct replacement for the original motor shaft key
- Helps prevent slipping between the motor shaft and drive disc
- Supports proper power transfer within the variable speed drive system
- Ideal for maintenance, repairs, and milling-head rebuilding
Please verify that your machine has an American-made 1.5 HP variable speed head and compare the OEM number with your existing key before ordering.






