Cylindrical Roller Bearing Bearing Industry Number 3011 Bore Diameter 55 mm Bore Type Tapered 1 12 Cage Material Brass Closure Open Inner Ring Outside Diameter 61.5 mm Lubricant Material Grease Oil Maximum Speed 7 300 RPM Grease 86 000 RPM Oil Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows Two Outer Ring Inside Diameter 82 mm Outside Diameter 90 mm Overall Width 26 mm Ring Material Alloy Steel Roller Material Alloy Steel