Material selection is critical when balancing thermal stability with chemical compatibility. This TC seal is molded from premium NBR, an elastomer renowned for its high resilience, wear resistance, and exceptional tolerance to petroleum-based oils, hydraulic fluids, and greases. For standard industrial applications, our NBR formulation withstands continuous operating temperatures up to 120°C. For extreme thermal or aggressive chemical environments involving synthetic lubricants, DSH also offers this profile in Fluoroelastomer FKM, extending thermal thresholds up to 220°C while maintaining superior structural durometer and preventing lip hardening or cracking.

Achieving the maximum service life of a 35*49*6 TC seal depends heavily on proper installation and minimizing shaft wear. DSH engineers recommend a lead-in chamfer on both the housing bore and the shaft to prevent lip roll or spring displacement during assembly. Pre-lubricating the sealing lips with a compatible grease before installation reduces dry-running friction during initial startup. Thanks to the optimized radial force distribution of our dual-lip design, this seal mitigates localized shaft grooving, ensuring long-term, low-maintenance performance and drastically reducing unexpected downtime during scheduled service intervals.