Reduced friction, improved reliability and superior sealing performance. SKF Seal Kits consist of one oil seal and wiper made of self-lubricating compounds developed to achieve superior sealing performance. Superior sealing performance. Self-lubricating compound. Improved performance. Withstands extreme conditions. Maintain low and consistent friction. Reduced wear and air suction. Reduces friction by virtually eliminating stick-slip - 20% over standard seals. Increased seal life - bench tested over 1 million cycles and 50 motocross hours with no maintenance required. Compatible with a wide range of original equipment and aftermarket oils. Design minimizes contamination reaching the oil seal. Seal material made of NBR elastomer with lower friction characteristics. Wiper seal optional dual-lip design for high contamination situations.