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Grinder Mill Rpm Pdf

In the example mentioned, changing from 6,600 rpm to 7,700 rpm multiplies the speed by 1.167.However, the corresponding centrifugal force would multiply by a factor of 1.167 1.167, or 1.36.To take a more extreme example, consider the same wheel with a maximum safe operating speed of 6,600 rpm run on a 5-inch right angle grinder at 10,000 rpm.