Needle Roller Bearing Bearing Industry Number 108 Bearing Design J Bore Diameter 5/8 in Cage Material Steel Closure Open Compatible Ring Manufacturer Part Number IR-68-1 Full Complement No Lubricant Material Grease Oil Maximum Speed 13 000 RPM Grease 21 000 RPM Oil Maximum Temperature 248 Degrees F Minimum Temperature -22 Degrees F Needle Bearing Type Drawn Cup Needle Roller Bearing Number of Rows One Outside Diameter 13/16 in Overall Width 0.5 in Ring Material Alloy Steel