Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukees website please click here:
Milwaukee Spindle
Model Number: 38-50-6400
The Milwaukee 38-50-6400 is a genuine OEM Spindle for use in compatible Milwaukee tools. The spindle is the precision-machined output shaft of the tool — the rotating component that transmits final torque and speed from the gearcase to the chuck, accessory, or drive interface. The spindle must maintain precise dimensional tolerances at its bearing journals, thread form, and output interface to ensure accurate, concentric tool rotation and correct accessory retention. Spindles are hardened steel shafts ground to tight tolerances and are critical to the dimensional accuracy and smooth operation of the tool. A worn, bent, or damaged spindle that introduces run-out, vibration, or inaccurate rotation requires replacement to restore correct tool output geometry and safe operation.
Using a genuine Milwaukee OEM spindle ensures the correct thread specification, bearing journal dimensions, and overall length for the tool it serves. Non-OEM spindles may not match the original tolerances, leading to chuck run-out or bearing misalignment. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct spindle for your specific unit.
Features
- Genuine Milwaukee OEM spindle for compatible Milwaukee tools
- Output shaft transmitting final torque and speed from the gearcase to the tool's output interface
- Precision ground to tight tolerances for accurate, concentric tool rotation
- Replacement eliminates run-out and vibration when original spindle is worn or bent
- Verify catalog number and serial number on Milwaukee's website before ordering
Specifications
- Type: Spindle (Output Shaft)
- Material: Hardened Steel
- Application: Final Torque and Speed Transmission to Tool Output Interface
- Compatibility: Always verify part compatibility using your tool's model and serial number before ordering
Includes
- (1) Milwaukee 38-50-6400 Spindle
