Needle Roller Bearing Bearing Industry Number 1212 Bearing Design JTT Bore Diameter 3/4 in Cage Material Steel Closure Double Sealed Full Complement No Lubricant Material Grease Oil Maximum Speed 10 000 RPM Grease 17 000 RPM Oil 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 in Overall Width 0.75 in Ring Material Alloy Steel Roller Material Alloy Steel