Quote:
Originally Posted by CompClassics
xb-60,
I believe that you meant to say that a bolts thread should never be subjected to a shear load under torque?
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Both the shaft of the bolt and definitely the thread of the bolt
should never be subjected to shear in a torque transmission situation. The bolts should be torqued up correctly so that the torque that the shaft/coupling is transmitting
is only transmitted via the friction between the two mating surfaces of the flanges. In this situation, the bolts should always be in tension, never in shear. This is achieved by having a correctly designed coupling ie with correct number/size/grade of bolts, with correct nuts (non-nyloc) and correct washers (non-spring).....all to suit the torque rating of the coupling.
Cheers,
Glen