ABRASIVE (GRINDING) WHEELS
5
330-ARB-01-IGDO © 2019, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | www.wsps.ca
Mounting
Ensure that wheels are mounted:
– by qualified persons
– according to the manufacturer's instructions
– only on the machines from which they were designed
Before mounting a wheel:
– inspect and test it to ensure that it is safe to use
– check that it is marked to indicate the maximum speed at which it can be used
– turn off and lock out the machine
When mounting a wheel, make sure that:
– the machine spindle speed does not exceed the speed marked on the wheel
– the wheel fits freely, but not loosely, on the spindle
Use flanges that:
– are equal in diameter and have equal bearing surfaces
– are at least one-third the diameter of the wheel
– have bearing surfaces that are true and free from burrs
– are properly undercut (unless it is a single flange used with a threaded-hole wheel)
Where required, use blotters (compressible washers) that are free of creases, folds and dirt – blotters
should be just larger than the flanges
Tighten the clamping nuts just enough to hold the wheel firmly
Don't let screws for inserted nut mountings touch the abrasive part of the wheel – use screws that
are just long enough to engage a sufficient length of thread
Make sure that the protective hood is properly adjusted and secured, and that it encloses the wheel
as closely as the work will permit
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