Question

A multiple disc clutch is used to operate the speed regulating gears of lathe. If the torque delivered by the clutch is 400+N lbs.∙in., evaluate the number of discs are necessary and the force acting on them while the clutch is in operation. Limit the disc friction surface sizes between 5 in. and 3 in. Take the factor of safety as 2, coefficient of friction as 0.200, and the pressure as 100 psi.

Answer 1