This article was updated May 5, 2023. It was originally published Sept. 24, 2009. Shaft keys—sometimes called sunk keys—transmit torque between shafts and shaft-mounted components such as gears or ...
A ROTATING shaft can exhibit torsional vibration when, because the dynamic coefficient of friction is less than the static value, the frictional force at the bearings supporting the shaft decreases as ...
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