This Rotary Shaft Oil Seal, featuring a Double Lip and dimensions of 40mm x 56mm x 12mm, is crafted with Nitrile Rubber to deliver superior sealing in rotating applications. It effectively prevents lubricant leakage and shields against external contaminants. With a 40mm shaft diameter, 56mm bore diameter, and 12mm width, it's perfect for medium-duty machinery and automotive uses. The NBR lip material boasts excellent resistance to oil, grease, and wear, ensuring reliable, long-term performance.