UN Radial Rotary Shaft Oil Seal: The UN-type oil seal's inner and outer sealing lip are the same height, with a Y-shape cross-section. Applied to industrial hydraulic cylinders and cylinders, hoists, moving rods of guide rods, and piston rods (pull rods), and pistons (one-way piston seals) in static pressure Advantage: Extrusion resistance, impact resistance, compression deformation, the most suitable for harsh working conditions, and easy to install. Polyurethane (PU) seal is oil resistance, low-temperature resistance, aging resistance, high hardness, elasticity, and easy to install. Our oil seals are great for industry, and workshops, suitable for industrial hydraulic cylinders, cylinders, hoists, guide moving rods, piston pull rods, and one way piston seals in static pressure., Manufacturer: HKSDKABOP