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
The bevel gear is used to change the axis of rotational motion. By using gears of differing numbers of teeth the speed of rotation can also be changed.
