Ball bearings—the familiar pieces that use balls to maintain the separation between the bearing races—have any number of uses. But the ones we're used to seeing in cars and other machines tend to be made of metal. Here, Matthais Wandel has a new video showing how to make them out of wood.
The first modern ball bearing design was developed in 1794, and they started going into bicycles in 1869. Everything from yo-yos to watches to jet engines use ball bearings in one way or another. New greaseless bearings spin with ten times less friction than previous models.
The first modern ball bearing design was developed in 1794, and they started going into bicycles in 1869. Everything from yo-yos to watches to jet engines use ball bearings in one way or another. New greaseless bearings spin with ten times less friction than previous models.
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