Question

A flat metal belt, made of Beryllium-Copper (BeCu), is Sf = 375 MPa and transmits at 8,84 rpm and 8.25 kW of power. The distance between the two spindle axes on the same horizontal plane is 935 mm and belt life is 10⁶ turns. The friction coefficient between the belt and the pulley will be 0.34, the operating coefficient is 1.41, and the design coefficient will be 1.55. The diameter of the translated pulley is 3.25 times the diameter of the motor pulley. The belt thickness is 0.20 mm and in case of using a minimum diameter pulley, calculate the belt width and length. The belt width should be 5 mm and its multiples. Calculate the pretension force to be applied

Answer 1