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rollers supporting
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The Invention of The Rolling Bearing May Predate The Invention of The Wheel
Apr 19, 2013The invention of the rolling bearing, in the form of wooden rollers supporting, or bearing, an object being moved is of great antiquity, and may predate the invention of the wheel. Though it is often claimed that the Egyptians used roller ...
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An Important Machine Part -- Bearing
Apr 19, 2013A bearing is a machine element that constrains relative motion between moving parts to only the desired motion. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a ...
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