Grease/Oil Seal 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 Reinforced outer case helps prevent installation damage and enhances durability 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 www.timkeninfo.com Package Dimensions: 3.688 x 3.688 x 0.754 inches Package Weight: 0.125 lb Package Quantity: 1 UPC: 053893855554 Quantity per Application: 1 Remanufactured Part: N