You could make wooden ball bearings this weekend

Ball Bearings – the familiar parts that use balls to maintain the separation between the rolling races– have a number of uses. But the ones we’re used to seeing in cars and other machinery tend to be metal. Right here, Matthais Wandel has a new video showing how to make them out of wood.

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The first modern ball bearing design was developed in 1794, and they started making their way into bicycles in 1869. Everything from yo-yos to watches to jet engines use ball bearings of a one way or another. New greaseless bearings spin with ten times less friction than previous models.

Wandel uses his wooden bearings for a much simpler purpose: a toy for his daughter.

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