The gear ratiogear train, also known as its speed ratio', is the ratio of the angular velocity of the input gear to the angular velocity of the output gear. The gear ratio can be calculated directly from the numbers of teeth on the gears in the gear train. The torque ratio of the gear train, also known as its mechanical advantage, is determined by the gear ratio.
Read more about Gear Ratio: Gear Trains With Two Gears, Speed Ratio, Torque Ratio, Idler Gears, Belt Drives, Automotive Applications
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