SKF

Elastomers (SKF Seals)

Elastomers are the core material class for radial shaft seals, O-rings, and many hydraulic seals. SKF works with a variety of elastomer families: Nitrile Butadiene Rubber (NBR) for general oil resistance, Hydrogenated Nitrile (HNBR) for improved heat and chemical resistance, Fluoroelastomer (FKM) for high-temperature and aggressive chemical environments, Silicone (VMQ) for extreme low or high temperature static applications, and Ethylene Propylene Diene Monomer (EPDM) for brake fluids and water/glycol. Each elastomer can be compounded with specific fillers and curatives to modify properties such as wear resistance, friction, and low-temperature flexibility. SKF’s elastomer seals are manufactured to tight tolerances, ensuring consistent lip interference and spring retention. Selecting the correct elastomer for the fluid, temperature, and shaft speed is the most critical step in seal specification.