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Spotting The Shaft
14-DEC-2010

Spotting The Shaft



After the coupling has been fitted to the shaft the set screw hole needs to be "spotted" into the shaft. The drill press is spotting the shaft in this picture.


Spotting is the creation of a small dimple in the shaft for the head of the set screw to recess into. If your shaft is not spotted for the set screw/screws you have an poorly machined shaft. Some unscrupulous vendors cut this corner.

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