Calculate the torque and power transmitted by the gear in a worm-gear pair. The worm has 3 threads and rotates at 29 rad/s and the gear has 65 teeth and a circular pitch of 21 mm. A normal force of 38 N is applied to the gear. Assume the worm and gear are ANSI !ne pitch with helix and pressure angles of 45º and 25º, respectively.

An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?