Makita Ball Bearing 627Ddw BO6040 9565PCV SG1251

Makita Ball Bearing 627Ddw BO6040 9565PCV SG1251

This is the bearing that fits on the motor / armature, which is usually the smaller of the two. Bearings over time can lose spinnyness, and won't turn as smooth. You can usually tell if this is the case because the motor will sound louder, and possibly a bit squaky