Needle Roller Bearing, Bearing Industry Number 45/20, Bearing Design NK, Bore Diameter 45 mm, Cage Material Steel, Closure Open, Full Complement No, Lubricant Material Grease, Oil, Maximum Speed 10,200 RPM, Maximum Temperature 120 Degrees C, Minimum Temperature -30 Degrees C, Needle Bearing Type Machined Needle Roller Bearing, Number of Rows One, Outside Diameter 55 mm, Overall Width 20 mm, Ring Material Alloy Steel, Roller Material Alloy Steel, Seal Type Not Applicable