What is Torque?
Torque is a “turning” or “twisting” force and differs from tension, which is created by a straight pull. However, we use torque to create a tension.
HOW DO WE MEASURE TORQUE?
Comparing the two examples, please note that the same Torque result can be achieved with a lower Force if the Distance from the nut/bolt is increased.
Another factor that affects applied torque when using torque wrenches is if it is “length dependent,” which means that the actual torque applied to the fastener varies if the hand position on the wrench is varied (even if the wrench is preset). This occurs if the pivot point of the wrench mechanism is not coincidental with the point of application of torque.
THE IMPORTANCE OF TORQUE CONTROL?
|Torque = force x lever length of wrench:
Force of 20 lbs. x 1 ft. = 20 lbf.ft
Force of 10 lbs. x 2 ft. = 20 lbf.ft