Hydraulic pump of the pulley shaft

 Hydraulic pump with high volumetric efficiency, leakage is small, can work under pressure, mostly for high-power hydraulic system. Let's us see hydraulic pump of the pulley shaft.

  Hydraulic pump drive shaft can not afford to radial force and axial force, it does not allow direct installation in the shaft pulley, gears, sprockets, usually the drive shaft and pump shaft coupling connection.