Parameter table of Guiding support ring

　Guiding support ring main role is to support the piston rod and the piston, guide the piston to do rectilinear motion, to prevent the not vertical stress on making uneven pressure to seal on the hydraulic cylinder, poor sealing effect, short service life, and so on.

　Guiding belt and support ring directly affect the use effect and life of the piston seal and the piston rod seal, so the requirement of guiding belt and support ring is also high, such as small friction coefficient, high hardness, long service life, etc.