The cos() is the radial force on the tube. On the other hand, while I agree the force along the axis is as calculated, I am not sure that is the force that provides the actual torque on the screw because the angle of the slope due to the helix's pitch is much le...
Piano keys represent one example of the splendid results that can arise from building machines that feature compound levers. An easier example to visualize is a typical set of nail clippers. With these, you apply force to a handle that draws two pieces of metal together thanks to a screw. T...
Unlikescrew drives, which often encounter axial forces due to external operations such as pressing or drilling, belt drives aren’t designed to withstand external axial forces. So the total axial force for a belt drive system consists only of the force required to move the load, which is the ...