Cylindrical Roller Bearing Bearing Industry Number 3018 Bore Diameter 90 mm Bore Type Tapered 1 12 Cage Material Brass Closure Open Inner Ring Outside Diameter 98 mm Lubricant Material Grease Oil Maximum Speed 4 500 RPM Grease 5 300 RPM Oil Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows Two Outer Ring Inside Diameter 129 mm Outside Diameter 140 mm Overall Width 37 mm Ring Material Alloy Steel Roller Material Alloy Steel