2 Pcs 6302-2RS Double Rubber Seal Bearings , Pre-Lubricated and Stable Performance and Cost Effective, Deep Groove Ball Bearings. Specifications Features Contact Seals Bearing Type Standard DGBB Weight 0.081 Kg Dimensions Outside Diameter D 42 mm Bore Size d 15 mm Outside Ring Width B 13 mm Rs - Min fillet radius 1 mm Basic Load Ratings Cr - Dynamic Load Rating 11.4 kN C0r - Static Load Rating 5.4 kN Factors Grease Reference Speed 17000 rpm Oil Reference Speed 20000 rpm Tmin - Min operating temperature -40 °C Tmax - Max operating temperature 120 °C