- High-Speed Bearings are manufactured to precision levels. - Rubber seals keep the grease in and the water and dirt out. - Chevron SRI 2 grease contains rust and oxidation inhibitors (-29 C to 177 C). - Double lip type TC seals with stainless steel garter springs. - Meets or exceeds OEM quality. - Direct oem replacement. - Designed to handle increased power loads. - FIR Racing products are a high quality replacement part and carries our guarantee of your satisfaction.