Cylindrical Roller Bearing Bearing Industry Number 3015 Bore Diameter 75 mm Bore Type Tapered 1 12 Cage Material Brass Closure Open Inner Ring Outside Diameter 81.5 mm Lubricant Material Grease Oil Maximum Speed 5 400 RPM Grease 6 300 RPM Oil Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows Two Outer Ring Inside Diameter 106 mm Outside Diameter 115 mm Overall Width 30 mm Ring Material Alloy Steel Roller Material Alloy Steel