Mechanisms Overview	Formulae Mechanical advantage Velocity ratio Efficiency
Levers Information Classes Class 1 Class 2 Class 3	Linkages Information Reverse motion Push pull Bell crank Parallel motion
Rotary/Linear motion Crank and slider Quick return Cams and followers Rotary cams Eccentrics Linear cams Windlass	Pulleys Information
Gears Information Multiple gears Gear trains Gear ratios Rack and pinion	Glossary Glossary