Mechanical Linkages

Front

Gear Train

Back

A group of gears that work together to move, power, and make things turn.

Front

Rack and Pinion

Back

A part with a round gear (pinion) and a straight gear (rack) that changes turning motion into straight movement.

Front

Four-bar Linkage

Back

Four bars connected in a loop that can move. It helps make many machines work, but it’s not a simple machine by itself.

Front

Bevel Gears

Back

Special gears shaped like cones that help turn motion between shafts that meet at an angle.

Front

Ratchet Lever

Back

A lever with a gear that only lets motion go one way, not backwards.

Front

Worm Gear

Back

A gear system where a screw (worm) turns a wheel to make slow, strong movement.

Front

Universal Joint

Back

A joint that connects two shafts so they can turn even if they aren’t lined up straight.

Front

Scissor Mechanism

Back

Scissors are two levers joined in the middle with blades that cut, working together as a compound machine.