| 摘要 |
PROBLEM TO BE SOLVED: To provide dynamic seals for linear motion rods or cylinders used in hydraulic service which prevent loss of hydraulic fluid and intrusion of foreign particles between moving parts.SOLUTION: A seal assembly 31 is disclosed. The seal 31 comprises a metal spring 37 bonded to an elastomer body 35 that is coupled to a polymer ring 33. The spring 37 may comprise a cantilevered, overlapped metal strip. The elastomer and polymer mechanically interlock with radial members. The elastomer has contacting surfaces configured in outward extending radii to enhance forward edge loading and oil removal from a dynamic surface. In hydraulic service, the seal prevents the egress of hydraulic fluid and ingress of foreign particles. |
