Abrasive Grinding and Cutting Wheels

UNB Reference Number: 7818
Authorized by: J. M. Anderson, President,
Effective Date: December 1, 1978
Revised: September 2001
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Intent

To outline the hazards and regulations relating to abrasive grinding and cutting wheels.

All University personnel using abrasive grinding and/or cutting wheels.

Abrasive wheels clearly marked as to specified speed, must be stored in a manner whereby they will not be subjected to extremes of temperature and humidity or damage from impact.
Care must be taken when handling abrasive wheels to prevent damage from impact.
Abrasive wheels must be inspected for possible defects prior to being used.

Abrasive wheels and retaining flanges shall have good contact over the surface area.
All abrasive wheels must be mounted between flanges which should not be less than 1/3 the diameter of the wheel.
Work rests for grinding wheels shall have a maximum clearance of 1/8" from the grinding wheel and be in a position above the centre line of the wheel.

Abrasive wheels must never be operated at a speed which exceeds the manufacturers recommendations.
The governor on portable grinding or cutting tools must never be tampered with.
Where possible, persons operating abrasive cutting wheels should avoid standing in direct line with the wheel.
New abrasive and grinding wheels shall be run at full operating speed for a few seconds before applying any work.
Work shall be applied gradually against 'cold' abrasive wheels to allow the wheel to warm up.
Grinding on the sides of straight abrasive or grinding wheels shall not be permitted except on wheels designated for that purpose.

Eye protection shall be worn by persons operating abrasive grinding or
All abrasive grinding or cutting wheels will be fitted with protective hoods which enclose the wheel as closely as the work allows.
Mechanical exhaust or respiratory protection shall be employed by persons working with abrasive tools under dusty or confined conditions.