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Milwaukee 02-04-0820 and 02-04-0847 are OEM 8x22x7mm miniature deep-groove ball bearings designed for high-speed motor armature and gear support in power tools. These 608-series bearings are composed of high-carbon chromium steel with hardened steel balls to manage radial and axial loads while maintaining precise shaft alignment.
Features
OEM replacement component
Supports rotating shafts and spindles in motor and drivetrain assemblies
Hardened steel ball complement reduces friction
Absorbs radial and axial forces during operation
Maintains shaft alignment within the housing
Designed for high-speed motor armature and gear support
Prevents tool damage by eliminating noise, vibration, heat, and shaft play
Specific part numbers denote unique seal, shield, or clearance configurations
Compatibility varies by tool model and serial number
Specifications
Target Manufacturer: Milwaukee Electric Tool Corp
Model Numbers: 02-04-0820, 02-04-0847
Bearing Series: 608 / 608ZZ
Inner Diameter: 8 mm
Outer Diameter: 22 mm
Width: 7 mm
Material: High-carbon chromium steel
Ball Complement: Hardened steel balls
Bearing Type: Miniature deep-groove ball bearing
Load Support: Radial and axial forces
Configuration: 2-open (02-04-0820) or Shielded/Sealed (02-04-0847)
