Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
General Industry Safety Standards
Part 1a - ABRASIVE WHEELS
MOUNTING PROVISIONS
Section R. 408.10156 - Mounting depressed center wheels

(1) A depressed center wheel, except as prescribed in rule 157, shall be mounted with specially designed adaptors.

(2) The back flange shall extend beyond the central hub or raised portion and contact the wheel to counteract the side pressure on the wheel in use.

(3) The adaptor nut which is less than the minimum 1/3 diameter of the wheel shall fit into the depressed side to prevent interference in side grinding and drive the wheel by its clamping force against the depressed portion of the back flange.

(4) Adaptors affixed by the depressed center wheel manufacturer shall not be reused.