Bell Crank Bevel Gear Cam Cardan Gear Chain Crank Crank Slider Gears Geneva Stop Lever Linkage Piston Pulley Rack and Pinion Ratchet Reciprocator Quick Return Wheel Worm Gear
This mechanism is used to convert between rotary motion and reciprocating motion. In this mechanism the straight line motion stays at a constant speed throughout the full length of the throw.
Compare with piston
