Angular Contact Ball Bearing Ball Material Ceramic Bearing Industry Number 7003 Bore Diameter 18 mm Cage Material Phenolic Closure Open Contact Angle 15 Degrees Contact Bearing Type Angular Contact Matched Bearing Type Duplex Maximum Speed 43 900 RPM Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outside Diameter 35 mm Overall Width 10 mm Ring Material Alloy Steel System of Measurement Metric ABEC Rating 7 Cage Type Stratified