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The 3M 7100117380 is a replacement ball bearing designed for use in 3M right angle grinders and sanders. Ball bearings in these tools support rotating shafts under radial and axial loads, reducing friction and maintaining precise alignment during operation. This component is an OEM-style replacement part intended for field service and repair. Licensed technicians and qualified tool repair professionals install this part as part of scheduled maintenance or corrective repair when bearing wear or failure is diagnosed. Refer to the tool owner manual and parts list schematic to confirm fitment before installation.
This ball bearing is used in right angle grinder and sander applications where the original bearing has reached end of service life or has been damaged. Right angle grinders and sanders operate in demanding environments that place continuous stress on internal rotating components. Replacing a worn bearing restores proper shaft support, reduces vibration, and helps return the tool to safe operating condition. This part is sold individually and is suited for shop repair, field service, and warranty repair scenarios.
Designed as a replacement ball bearing for 3M right angle grinders and sanders. Consult the owner manual parts list and tool schematic to verify this part number is correct for the specific tool model being serviced.
Installation should be performed by a qualified tool repair technician familiar with rotating power tool components. Disconnect and de-energize the tool completely before disassembly. Use appropriate bearing pullers and press tools to remove the old bearing and seat the replacement without damaging the housing or shaft. Refer to the manufacturer owner manual for the correct parts list and assembly sequence before beginning service.
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