If you work with motor driven devices such as fans, pumps, and elevators, finding everything about the size of a shaft and the torque is helpful. The manufacturers consider numerous safety factors to create a quality machine, but among all of this creating a shaft, which is easy to modify in future is the major objective. Hence, finding the relationship between shaft size and torque will lead you to the accurate shaft rotating torque measurements. So what's the relationship? Let's check it out! ΓΌ Bigger Size is Better Traditionally, a shaft has a bigger size than the equipment itself. Engineers of old times had no chance for the errors that's why using the shaft of bigger size was the only choice to make any electric device efficient. This has become a reason why many industries are still using shafts of bigger size. It provides better torque and makes any device the best device. So, the better shaft rotating torque is achievable with the bigger sh...