Dear all,

A timing belt pulley is mounted upon a shaft from this drive is being transmitted.

In the shaft lay out fixing shaft in the bearings,next putting key over the shaft, & mounting the pulley and this has to lock i.e.locknut with washer or any fastener in the shaft threaded centre hole.

My question is which locking arrangement is the most preferable? Locknut (making thread in outer surface of the shaft putting lock washer & and put locknut & lastly fold the washer) or fastener lock in threaded centre hole.

Note:

I seen that most lock nut arrangement is found in axial force coming members.& bearing pre load applications

In fastener centre lock i found that quite common.

Which above is most preferable ? any selection guidelines, sites?

Thanks,

Prakash ■