Mich. Admin. Code R. 408.10175 - Wheel speeds
Rule 175.
(1)
An abrasive wheel or its package shall show the maximum operating speed as
revolutions per minute. The use of a package for this marking shall be limited
to those shapes which make marking unfeasible.
(2) Except as provided for in
R
408.10177, an abrasive wheel shall be run at a speed
which is not more than that prescribed in table 21 of
R
408.10199, but not more than the rated speed on the
wheel. The revolutions per minute may be increased as the wheel diameter
decreases if the original surface feet per minute speed is not exceeded. Wheel
speed shall be computed from the free-running speed of the machine
spindle.
(3) An employer shall
purchase and use only an abrasive wheel which has been speed tested, as
prescribed in table 22 of
R
408.10199, by the manufacturer, with the following
exceptions:
(a) A wheel that is less than 6
inches in diameter.
(b) A diamond
or cubic boron nitride wheel that is bonded by metal or organic
substances.
(c) A segmental disc
wheel and disc wheel.
(d) A ball
grinding wheel.
(e) A regulating
wheel for centerless grinders.
(f)
A mounted wheel.
(g) A
segment.
(4) The
operating speed and overhang of a mounted wheel shall be not more than that
prescribed in tables 23 to 31 of
R
408.10199 (See figure 23).
Notes
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