NAK Wheel Hub Seals are high-durability wheel hub seals for medium to heavy duty vehicles. They are made by integrating multiple components to offer the best sealing and service life for the heavy haulers of the trucking industry. The labyrinthine design of dust lips effectively prevents mud penetration and reduces heat generation. The special style of hydrodnamic aid increases pumping rate and reduces temperature rise and rubber wear. Besides, they are easy to install. #Oil seal