Material integrity dictates sealing longevity in abrasive environments. This Combi seal is molded from premium Nitrile Butadiene NBR, selected for its exceptional volumetric stability when exposed to mineral oils, greases, and hydraulic fluids. For extreme thermal or chemical environments, we also engineering this profile in FKM. While NBR delivers superior mechanical toughness and tear resistance against gravel and grit, FKM offers enhanced resilience against aggressive synthetic lubricants and high operating temperatures, preventing premature elastomer hardening.

From an operational maintenance perspective, the unitized Combi design significantly lowers Total Cost of Ownership . The rigid metal outer cage provides a secure press-fit into the housing bore, eliminating the risk of seal walk-out. Its robust, pre-assembled structure allows for direct installation without requiring complex shaft disassembly or specialized sleeve sleeves. The low-friction contact profile generates minimal heat build-up, effectively extending maintenance intervals and preventing the localized shaft grooving common with standard lip seals.