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The role of the packing ring gap of the piston rod

First, the gap
Mainly used to compensate for the wear of the packing ring.

Second, the axial clearance
Mainly used to allow the packing ring to float freely, otherwise the piston rod will not work properly.

Third, radial clearance
Avoid the sinking of the piston rod, so that the packing ring is pressed to avoid deformation or damage.

2019/09/25 09:37:37 4049 次


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