This rotary seal is molded from high-performance NBR, the industry standard for reliable rotary shaft sealing. NBR offers excellent volumetric stability and a low coefficient of friction when paired with petroleum-based oils, mineral greases, and hydraulic fluids. The material formulation is specifically engineered to resist polymer degradation and hardening caused by continuous shearing forces at the shaft interface. For specialized applications involving synthetic fluids, aggressive chemicals, or extreme thermal shifts, we also provide custom compound variations including FKM.

The TB design minimizes the risk of "spring-back" and misalignment inside the housing bore due to its rigid metal outer diameter. For maintenance teams, this translates to faster installation and significantly reduced risks of assembly-induced lip damage. The 7 mm profile width optimizes contact distribution along the shaft surface, preventing deep groove channeling over extended operational cycles. By securely sealing the bore and eliminating external contaminants, this skeleton oil seal significantly extends the bearing life cycle and lowers overall equipment maintenance overhead.