Mich. Admin. Code R. 408.10115 - Machine spindles
Rule 115.
(1)
A wheel or flange that is secured by a spindle nut shall have the direction of
the thread opposite that of the spindle rotation so that the nut will tighten
as the spindle revolves.
(2) A
spindle shall be long enough to engage all the threads within the
nut.
(3) Spindle threads shall
extend inside the flange, but not more than halfway within the hole of the
abrasive wheel.
(4) The spindle
shall not be larger than the nominal size, with the undersize tolerance limited
as required to prevent a hazardous condition.
(5) A spindle on which a threaded-hole wheel
is mounted shall be threaded to allow the abrasive wheel to be screwed flat
against the back flange. In addition, all of the following requirements shall
be complied with:
(a) The direction of the
thread shall be such that removing the abrasive wheel requires rotation of the
wheel in the same direction that it turns when in use.
(b) A spindle shaft shall not touch the
bottom of a blind hole in an abrasive wheel.
(c) A back flange that is specified in this
rule shall be flat, unrelieved, and square to the spindle axis.
Notes
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