Radial Ball Bearing,  Bearing Type: Sealed, Bore Dia.: 90 mm, Bore Tolerance: +0/-.015 mm,  Outside Dia.: 160 mm , Outside Dia. Tolerance: +0/-11 micron,  Width: 30 mm,  ABEC Tolerance: 1,  Dynamic Load Capacity: 22,700 lb. , Static Load Capacity: 16,500 lb.,  Max. RPM: 5,300,  Temp. Range: -40 Degrees to 212 Degrees F,  Bearing Material : 52100 Chrome Steel , Cage Material:  Pressed Steel , Seal Material:  Synthetic Rubber,  Lubrication: EM Grease, Industry Number: 6218-2RS C3