Needle Roller Bearing Bearing Industry Number 1612 Bearing Design JH Bore Diameter 1 in Cage Material Steel Closure Open Compatible Ring Grainger Part Number 779KE6 Compatible Ring Manufacturer Part Number IR-1212 Full Complement No Lubricant Material Grease Oil Maximum Speed 13 000 RPM Oil 8 500 RPM Grease 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 5/16 in