ABRASIVE (GRINDING) WHEELS
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330-ARB-01-IGDO © 2019, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | www.wsps.ca
Mounting Grinding Wheels on Spindles
Inspect the wheel for flaws and carry out the ring test
Clean the bearing surfaces of the wheel, flanges and spindles so that the clamping pressure is
evenly distributed
Check the speed of the spindle to make sure that it is not too fast for the type and size of wheel
Make sure that the hole in the wheel bushing is the right size for the spindle (neither too small
nor too large)
Use flanges that are recessed and large enough to clamp the wheel well toward outer edge
Use suitable blotters
Tighten the spindle and nuts just enough to keep the wheel from moving out of position between
the flanges
Before turning on the power, make sure that the wheel runs true and unobstructed
Stand to one side of the wheel when first turning on the power
Working Safety
Even when a grinding wheel is tested and equipped with all possible safety devices, grinding is still a
hazardous activity. It is important to always follow these safe work practices:
Wear proper eye protection
Wear face shield
Wear hearing protection
Never wear loose clothing, ties, rings or other jewellery around rotating machinery
Keep long hair in a hair net
Stand to one side of the wheel when first turning on the power
Let the machine run at full speed for one minute while everyone stands clear
Bring the workpiece slowly and smoothly into contact with the wheel (don't bump the wheel)
Allow a cold wheel to warm to ambient temperature prior to use
Don't force work against the wheel so that the motor slows down excessively or stalls
Don't side grind on the flat side of a straight wheel; use wheels designed for this purpose
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