Coupling bore/keyway size

[panapat]

Is there a rule-of-thumb for the size that a coupling is bored and keyway is broached over the OD of the shaft?

 

[Artisi]

Sure there is, ask the coupling manufacturer for the dimensions and tolerances for your particular shaft size.

International College
Naresuan University
Phitsanulok
Thailand

 

[scalleke]

Is this not just listed in the machinery's handbook?

Scalleke

 

[tstead]

Regardless of the existance of a "rule of thumb" you need to contact the coupling mfgr for their recommendation just as Artisi said. Don't guess. If it's worth doing, its worth doing RIGHT.

Tim S.