Milwaukee® Fan Bearing Seal is designed for 6088-31 7" and 9" grinders, 6086-20 9" grinder, 6088-30 & 6089-30 7" and 9" grinders with lock-on, 6088-20 7" grinder, 7/9" sander, 6185-20 14" abrasive cut-off machine and 6185-20 14" handheld cut-off machine.