Grinding wheel will occur a natural phenomenon that wear problems after long-term use, worn grinding wheel is a very unsafe behavior.Any grinding wheel has its requirements for the use, wear of grading wheels reach a certain level must be re-replacement of the grinding wheel, not in order to save material, this is an extremely unsafe violations. A general rule, when the diameter of the wheel wear is bigger 10mm than chuck diameter, we should replace grinding wheel.
The new grinding wheel from the treasury is not qualified necessarily, any grinding wheel has its certain expiration date, during the term of use, it is qualified grinding wheel; Over the period, it is not necessarily qualified wheel. Regulation provides for “ grinding wheel should be within the validity period, resin and rubber bonded grinding wheel storage for one year must be turning test, those who pass test can be used”.
During use, if you find that grinding wheel has partial crack, should immediately stop using, replace the new wheel to avoid crushing injuries.
