All Balls Kawasaki KZ 550C 80-83 Rear Wheel Bearing and Seal Kit All Balls high-speed bearings are manufactured to ABEC 3 precision levels. Triple lip rubber seals keep the grease in and the water and dirt out. Chevron SRI 2 grease contains rust and oxidation inhibitors (-29 C - 177 C). Double lip type TC seals with stainless steel garter springs.