Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 7010 Bore Diameter 50 mm Cage Material Phenolic Closure Open Contact Angle 15 Degrees Contact Bearing Type Angular Contact Matched Bearing Type Duplex Maximum Speed 13 500 RPM Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outside Diameter 80 mm Overall Width 16 mm Ring Material Alloy Steel System of Measurement Metric ABEC Rating 7 Cage Type Stratified