Needle Roller Bearing Bearing Industry Number 228 Bearing Design J Bore Diameter 1 3/8 in Cage Material Steel Closure Open Compatible Ring Manufacturer Part Number IR-1812 Full Complement No Lubricant Material Grease Oil Maximum Speed 6 000 RPM Grease 9 200 RPM Oil Maximum Temperature 250 Degrees F Minimum Temperature -5 Degrees F Needle Bearing Type Drawn Cup Needle Roller Bearing Number of Rows One Outside Diameter 1 5/8 in Overall Width 0.5 in Ring Material Alloy Steel