Reinforced outer case helps prevent installation damage and enhances durability. Internal contamination exclusion system helps prevent debris penetration which may lead to leakage. Oil and grease seals from Timken feature precision sealing designs to prevent lubricant escape and stop harmful contaminants from entering. Ribbed rubber inner diameter designed to seal minor spindle imperfections and promote positive spindle seating. Vent holes allow lubricants to flow freely around the seal lip - cooling seal components and removing heat build-up
WARNING: Cancer and Reproductive Harm