Gears

A gear consists of a rotating part with teeth or cogs that are used to mesh with other gears in order to transmit torque. Gears are useful for changing the speed, torque and direction of the source of power. Most gears rotate, however linear motion…

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Rolling Element Bearing: Forcing Frequencies

Rolling element bearings are used in all sorts of rotating applications. Unfortunately, because of poor machine setup and maintenance, fewer than 10% of bearings reach their intended design life; this is because even marginal increases above the maximum allowable load on a bearing can dramatically…

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