Makita 210025-8 — genuine Makita ball bearing (627LLB), single sealed deep-groove bearing designed as a direct replacement for worn motor-shaft bearings. Inner bore 7 mm × outer diameter 22 mm × width 7 mm, double non-contact rubber seals (LLB) for grease retention and low friction during high-speed operation.
This original Makita part (210025-8) is listed in Makita parts breakdowns for a range of tools — for example BO3700 (finishing sander), TW0350 (impact wrench), HP2010N (hammer drill), 4324 (jigsaw) and others such as 1923B / 5621RD / 6904VH / BTW450 / JS1600 and DTW450
Sold as a single bearing, it’s a straightforward drop-in swap for a 7 mm shaft into a 22 mm housing bore: replace noisy, loose, or overheating bearings to restore smooth, quiet operation and proper motor alignment. Makita parts like this sealed 627LLB are built to the tolerances used in the original tool assemblies.
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