A filled PTFE seal ring, an energised O-Ring and two back-up rings compact seal. Special seal surface design to suit for high pressure and low viscosity. Concave back face design increases contact surface, prevents the seal ring rotating with the rod and shaft. Applied to engineering machinery, construction machinery and automobile machinery, ect.
Design and apply please refering to Hunger’s RDA series standard.
4．Characteristics
1- low coefficient of friciton
2- no crawling and no stick-slip behavior
3- can be applied to occasions where rod or piston sealing are required
