This kit includes (2) ball bearings & (2) seals, so that you get everything needed with one easy purchase. Manufactured to ABEC 3 precision levels Triple lip rubber seals keep the grease in + the water and dirt out Chevron SRI 2 grease contains round oxidation inhibitors Double lip type TC seals with stainless steel garter springsThe 8302345 All Balls Rear Axle Wheel Bearing Kit for Kubota RTV Models fits equipment brands such as: Kubota