I need to replace the gear in my car.

I shifted into high gear to accelerate on the highway.

The worm gear is used to transmit motion between two non-parallel, non-intersecting shafts.

They are gearing up for the big game.

I need to replace the worn-out running gear in my car.

The pilot lowered the landing gear as the plane prepared for landing.

I had to shift into low gear to climb the steep hill.

The differential gear allows the wheels of a vehicle to rotate at different speeds.

The bevel gears are used to transmit power between two intersecting shafts.

I needed to kick it into high gear if I wanted to finish the project on time.