UC201 12mm Axle Bearing Insert Mounted BearingsUC201 Mounted Bearings 12mm x 47mm x 31mm 12mm mounted Bearing UC201, the inner diameter is 12mm, the outer diameter is 47mm, the inner ring width is 31mm and the outer ring width is 16mm, this is a popular size that could be used in many applications. Item: UC201 Bearing Type: Mounted Bearing Bearing Size: 12mm x 47mm x 16mm 31mm Inner Diameter: 12mm Outer Diameter: 47mm Inner Ring Width: 31mm Outer Ring Width: 16mm Dynamic load rating Cr: 56937 N