What is the speed of the hydraulic motor?

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What is the speed of the hydraulic motor?
Time: 2014-08-27 Source: http://

The speed of the motor depends on the fuel displacement per revolution and the volumetric efficiency (the speed is equal to sixty motor oil flow divided by the displacement per revolution). Therefore, the motor speed is adjusted by changing the hydraulic pump flow or the hydraulic motor per revolution. (This method is called volume control)

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