Needle Roller Bearing, Bearing Industry Number 1010, Bearing Design B, Bore Diameter 5/8 in, Cage Material Not Applicable, Closure Open, Compatible Ring Manufacturer Part Number IR-612-1, Full Complement Yes, Lubricant Material Oil, Maximum Speed 4,300 RPM, Maximum Temperature 250 Degrees F, Minimum Temperature -5 Degrees F, Needle Bearing Type Drawn Cup Needle Roller Bearing, Number of Rows One, Outside Diameter 7/8 in, Overall Width 0.625 in, Ring Material Alloy Steel