Rod seals, also known as gland seals, prevent hydraulic fluid from leaking out of the cylinder along the rod. Installed in the cylinder head, they endure high pressure and dynamic motion. Materials like PTFE or fabric-reinforced rubber provide durability. Rod seals often combine with wipers to block contaminants. Proper lubrication extends their lifespan. Incorrect sizing causes leaks... https://globalsealstech.com/hydraulic-seals/