Item: Radial Ball Bearing, Bearing Type: Double Shield, Bore Dia.: 60 mm, Bore Tolerance: +0/-0.015 mm, Outside Dia.: 130 mm, Outside Dia. Tolerance: +0/-0.018 mm, Width: 31 mm, ABEC Tolerance: 1, Dynamic Load Capacity: 18,400 lb., Static Load Capacity: 11,700 lb., Max. RPM: 6,300, Temp. Range: -40 Degrees to 350 Degrees F., Bearing Material: 52100 Chrome Steel, Cage Material: Pressed Steel, Shield Material: Steel, Lubrication: Polyrex EM Grease, Industry Number: 6312-ZZ C3