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Axle

1:48

How does a wheel and axle work?

1:42

Wheel and Axle - Simple Machines | Science for Kids | Educational Videos by Mocomi

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What Happens If You TWIST a Lego Axle HARD?

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What is Rear Axle & Its Types in Automobiles?? ||Engineer's Academy||

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What Does This Thing Do: Car Axle

An axle is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a bearing or bushing sits inside a central hole in the wheel to allow the wheel or gear to rotate around the axle. Sometimes, especially on bicycles, the latter type axle is referred to as a spindle.
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