Hello all. I am trying to understand how to calculate the load in a certain arrangement. More specifically, when there is no work being done on the belt, a set of idlers are under equal load. When the main drive pulley at the top is rotating counter clockwise, the belt on the right in the image takes on a load ( the system is lifting an object off the ground) and forces the idler swivel plate to the right. I want to understand how to calculate what force is being exerted against the idler on the right to determine what amount of force would be required to cause the idler swivel plate to remain in the center. I want the swivel to remain in the center so I can add pressure sensors to sense what pressure is being exerted so a controller can make decisions.