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 Wave Washer
Model Number: 45-88-0577
The Milwaukee 45-88-0577 is a genuine OEM Wave Washer for use in compatible Milwaukee tools. A wave washer is a thin, corrugated (wave-shaped) washer that provides controlled axial spring preload between two components — its corrugated profile compresses under load to absorb axial play and maintain consistent bearing preload, preventing bearing rattle, reducing noise and vibration, and compensating for thermal expansion in the bearing stack. Wave washers are used in Milwaukee tools at motor shaft bearings, gearcase output bearing interfaces, and spindle bearing stacks where a precise, compact axial preload is required. A collapsed, fatigued, or missing wave washer requires replacement to restore correct bearing preload and quiet, smooth operation. Note that Milwaukee uses distinct part numbers for wave washers of different dimensions — always order by exact catalog number.
Using a genuine Milwaukee OEM wave washer ensures the correct dimensions and spring rate for the bearing preload interface it serves. Always verify your catalog number and serial number on Milwaukee's website before ordering to confirm this is the correct washer for your specific unit.
Features
- Genuine Milwaukee OEM wave washer for compatible Milwaukee tools
- Corrugated profile provides controlled axial spring preload in bearing stacks
- Eliminates bearing axial play and reduces noise and vibration in the drivetrain
- Replacement restores correct bearing preload when original wave washer collapses or fatigues
- Verify catalog number and serial number on Milwaukee's website before ordering
Specifications
- Type: Wave Washer
- Application: Axial Bearing Preload Spring Washer for Compatible Milwaukee Tools
- Compatibility: Always verify part compatibility using your tool's model and serial number before ordering
Includes
- (1) Milwaukee 45-88-0577 Wave Washer
