A lot of study showed that the friction of the ball friction coupling between piston and slipper obviously affected the life-span and the performance of the axial piston pump.
大量的研究表明，柱塞与滑靴之间的球铰副摩擦力很大程度上影响着轴向柱塞泵的性能及寿命。
Carbon pressure ball machine device is a hydraulic pump hydraulic protection will be high pressure oil into the hydraulic cylinder, driving the piston produce axial displacement.
碳素压球机液压保护装置是由液压泵将高压油打入液压缸，使活塞产生轴向位移。
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