Technic Escapement Wheel
Technic Axle 3 Technic Axle 6 Technic Axle and Pin Connector Perpendicular Technic Axle and Pin Connector Toggle Joint Smooth Technic Beam 1 x 4 Thin with Stud Connector Technic Pin 3/4 Technic Pin with Friction Ridges Technic Wedge Belt Wheel (Pulley)