Mich. Admin. Code R. 408.10156 - Mounting depressed center wheels
Rule 156.
(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.
Notes
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