Needle Roller Bearing Bearing Industry Number 1210 Bearing Design J Bore Diameter 3/4 in Cage Material Steel Closure Open Compatible Ring Grainger Part Number 779KF7 Compatible Ring Manufacturer Part Number IR-812 Full Complement No Lubricant Material Grease Oil Maximum Speed 11 000 RPM Grease 18 000 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 1 in