3M 7010308675 Ball Bearing for 28391 Electric Polisher

Product Description

The 3M 7010308675 is a replacement ball bearing designed for use in the 3M 28391 Electric Polisher. Ball bearings are precision-fit rotating components that reduce friction between moving parts in power tool spindle and motor assemblies. Over time, bearings wear under load and heat, causing vibration, noise, or spindle play that degrades polishing performance. This part restores smooth, low-friction rotation and extends the service life of the polisher. It is installed by tool repair technicians and qualified service professionals as part of routine or corrective maintenance on the 3M 28391 platform.

This bearing is intended for use specifically in the 3M 28391 Electric Polisher. The 28391 is a rotary electric polisher used in automotive finishing, surface preparation, and paint correction applications. Typical install scenarios include service bench repairs where spindle roughness, audible bearing noise, or excessive heat generation has been identified during inspection. Always consult the Owners Manual Parts List and tool schematic for the correct bearing position and surrounding component sequence before beginning disassembly.

Key Features

• Direct OEM replacement bearing for the 3M 28391 Electric Polisher
• Restores smooth spindle rotation and reduces operational vibration
• Sold as a single unit, allowing targeted replacement of worn components
• Compatible with the original tool assembly without modification

Compatibility

Designed as a replacement part for the 3M 28391 Electric Polisher. Refer to the Owners Manual Parts List and tool schematic to confirm correct positioning within the assembly before installation.

Installation Notes

Installation should be performed by a qualified tool repair technician or authorized service center. Disconnect and de-energize the polisher fully before disassembly. A bearing puller and press are typically required to remove the old bearing and seat the replacement without damaging the housing or shaft. Follow the 3M 28391 Owners Manual schematic to ensure correct orientation and reassembly sequence.

Technical Specifications

• Unit of Measure: Pack
• Minimum Order Quantity: 1
• UPC: 00051141309064

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010308675