Contact seals are made of oil and wear-resistant NBR or FKM and are reinforced with a sheet steel insert.
Bearings with seals made of FKM (designation suffix RS2 or 2RS2) are available on request.
Seals made of FKM (fluoro rubber) exposed to an open flame or temperatures above 300 °C (570 °F) are a health and environmental hazard! They remain dangerous even after they have cooled.
Read and follow the safety precautions under Seal materials.