Two shafts are connected by a shrink-fit bushing with an outer diameter of 120mm. The diameter of each shaft is 80mm and each shaft is 2m long. Before the shrink-fit bushing was mounted, the diametral interference was δ=80μm. The bushing and the shaft are made of steel with a modulus of elasticity E=210GPa. Find the allowable temperature increase without without slip in the press fit if a power of 200 is transmitted and the far ends of the shafts cannot move axially. The coefficient of thermal expansion is 11.5 /times 10⁻⁶ C⁰ and the coefficient of friction is 0.1.The axial length of the bushing press fit on each shaft is 80 mm.The rotational speed is 1500mm.