Cylindrical Roller Bearing, Bearing Industry Number 310, Bore Diameter 50 mm, Bore Type Cylindrical, Cage Material Brass, Closure Open, Inner Ring Outside Diameter 59 mm, Lubricant Material Grease, Oil, Maximum Speed 5,900 RPM Grease, 6,900 RPM Oil, Maximum Temperature 120 Degrees C, Minimum Temperature -40 Degrees C, Number of Rows One, Outer Ring Inside Diameter 101 mm, Outside Diameter 110 mm, Overall Width 27 mm, Ring Material Alloy Steel, Roller Material Alloy Steel