Needle Roller Bearing Bearing Industry Number 88 Bearing Design B Bore Diameter 1/2 in Cage Material Not Applicable Closure Open Compatible Ring Manufacturer Part Number IRA-5 Full Complement Yes Lubricant Material Oil Maximum Speed 5 600 RPM Maximum Temperature 248 Degrees F Minimum Temperature -22 Degrees F Needle Bearing Type Drawn Cup Needle Roller Bearing Number of Rows One Outside Diameter 11/16 in Overall Width 0.5 in Ring Material Alloy Steel Roller Material Alloy Steel