SKF SIL 56X66X11 hydraulic seal

SKF SIL 56X66X11 is a reference of hydraulic seal, within Seals. Request a quote for SIL 56X66X11 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF SIL series seals are rod seals for hydraulic cylinders, with a U profile. They are housed in the cylinder head and seal against the rod as it extends and retracts, preventing pressurized oil from escaping outward. The designation indicates the dimensions in millimeters: rod, housing and seal height.

A rod seal works under different conditions than a rotary shaft seal: the movement is reciprocating, the pressure is high and the seal must leave a minimal oil film to lubricate without dripping. Therefore, the profile and material are selected according to the pressure, rod speed and fluid temperature.

When replacing it, it is advisable to inspect the rod: a scratch or pit in the chrome destroys the new seal within a few hours. The wiper and guide rings are also inspected, and are usually replaced in the same set.

For mounting, avoid passing the seal over threads or sharp edges without protection, and lubricate with the same system fluid. A seal nicked during mounting leaks from the first cycle.

To request a quote, send us the complete SIL designation or the three housing dimensions via WhatsApp, and if possible a photo of the old seal.