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Selection of a Proper Ball Size to Check an Involute Spur or Helical Cear Tooth - September/October 1987

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Archive > 1987 > September/October 1987 > Selection of a Proper Ball Size to Check an Involute Spur or Helical Cear Tooth

The article "Selection of a Proper Ball Size to Check an Involute Spur or Helical Cear Tooth" appeared in the September/October 1987 issue of Gear Technology.

Summary
A much-used method for checking the tooth thickness of an involute gear tooth is to measure the dimension over two balls placed in most nearly opposite spaces in the case of external gears, and the dimension between the balls in the case of internal gears. This measurement is then checked against a pre-calculated dimension to denote an acceptable part.

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