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The 3M 7100089736 is a factory repair kit for the 3M File Belt Arm 28373, designed to restore worn or damaged belt arm assemblies to original operating condition. The kit contains all critical wear components in a single pack: a contact wheel, two bearings, a shaft, and a platen pad. Technicians and maintenance professionals working with 3M abrasive belt finishing equipment use this kit to extend service life without replacing the entire arm assembly. Having all four component types in one kit reduces downtime and keeps the repair on a single line item.
This repair kit is intended for use with the 3M File Belt Arm model 28373, a narrow-profile abrasive tool commonly used in metal fabrication, weld blending, and surface finishing applications. Shops running belt arm tools in production or maintenance environments stock this kit as a standard consumable to minimize unplanned equipment downtime. The kit ships as a single pack with a minimum order quantity of one.
Designed specifically as a replacement repair kit for the 3M File Belt Arm model 28373.
Repair of belt arm assemblies should be performed by a qualified technician familiar with abrasive power tool maintenance. Disconnect and de-energize all pneumatic or electrical power sources before disassembling the belt arm. Follow the tool manufacturer's service documentation for proper bearing seating and shaft alignment procedures. Inspect the belt arm housing for wear or damage before reinstalling repaired components.
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