made with inch dimensions Shielded Radial Ball Bearing with metal shields for (4 Each) R3-ZZ R3-2RS R3RS R3ZZ R32RS R3Z 99R3 R3-2Z R3DDU 77R3 R3RHH 33KDD5 RF6016X 60355K42 The R series bearings are made with inch dimensions and are designed with a Conrad construction that allows for both radial and thrust loads. This bearing comes pre-lubricated with grease and is available with metal shields (-ZZ). For a precise fit and wise selection. Please confirm your model above before ordering. Double-check dimensions and photos for the right fit. Quality assurance ：Well-designed, excellent processing. Made of highly durable materials, rigorously This is a manufacturer substitution. Functional equivalent to prior parts.Product Description Well-designed, excellent processing.tested, compact & sturdy, longevous. Ultra Durable, Quality Replacement.Made from durable high quality material and well-tested by the manufacturermade from durable high quality material and well-tested by the manufacturer