国大峰 Torque Loading-Basic Terms 3 .Power screws are used to move a load >Thus,we need to determine the torque required to raise a load and that to lower a load. .Represent all the forces acting along one thread region as the summation of these Lever forces,F. -Sq.threaded rod .In order to move the load >a force,P must be applied to it. 圈上我大生 Torque Loading-Basic Terms 3 .For square thread 245 Torque Loading - Basic Terms 3 •Power screws are used to move a load Thus, we need to determine the torque required to raise a load and that to lower a load. •Represent all the forces acting along one thread region as the summation of these forces, F. •In order to move the load a force, P must be applied to it. 46 Torque Loading - Basic Terms 3 •For square thread