What are the functions of the guide belt and support ring?
2023-08-28
What are the functions of the guide belt and Support Ring? In hydraulic cylinder seals, the commonly used components are guide belts and support rings. The service life of guide belts and support rings directly affects the effectiveness and service life of PISTON SEALS and piston rod seals. Therefore, the requirements for guide belts and support rings are also high, such as low friction coefficient, high hardness, and long service life. Guide belt
The guide belt is installed on the piston and its main function is to guide the piston to move in a straight line. It has good wear resistance and dry running characteristics, preventing internal leakage caused by uneven force on the piston and reducing the service life of the sealing element. The main materials of the guide belt include PTFE+copper powder, phenolic cloth, and wood cypress Working temperature: The general operating temperature range is -40~120 ℃. Support ring
The support ring is installed on the inner side of the hydraulic cylinder end cover, mainly to support the piston rod. To prevent uneven pressure on the rod seal caused by non vertical force on the piston rod, resulting in poor sealing effect and short service life. Applicable working conditions of the support ring: dual use of hole and shaft, providing support and guidance for the piston or piston rod. Materials: PTFE, POM, PA. Operating temperature: -60 ℃~+220 ℃ There are many forms of guide belts and support rings, and there are also combinations used with the main seal.
