The Stemco 68" Housing Bore Diameter HNBR-PTFE Seal Lip Material Wheel Seal is a high-quality component designed for wheel axles that require reliable sealing. This seal is made of advanced materials such as HNBR and PTFE, which provide excellent resistance to wear, tear, and extreme temperatures. The housing bore diameter of this seal is 68" which makes it suitable for heavy duty vehicles such as trucks, trailers, and buses. Its precise engineering ensures a snug fit that prevents leaks and contamination from dirt and debris. The HNBR-PTFE Seal Lip Material is a specialized combination of materials that provides excellent sealing performance. The HNBR material provides superior resistance to oil, ozone, and other environmental factors, while PTFE is known for its low friction properties, preventing wear and tear on the seal surface. The Wheel Seal is a crucial component in a vehicle's wheel assembly, responsible for preventing lubricants from escaping while also preventing dirt and debris from entering the hub area. The Stemco Wheel Seal is engineered to provide a reliable, long-lasting solution for Wheel Sealing needs in demanding. FleetPride is your First Click in Heavy Duty®.