UC201 12mm Axle Bearing Insert Mounted BearingUC201 Mounted Bearings 12mm x 47mm x 31mm 12mm mounted Bearing UC201, measures an inner diameter of 12mm, the outer diameter is 47mm, the inner ring width is 31mm and the outer ring width is 16mm, a standard bearing size commonly used in a variety of industrial and commercial applications. UC201 Bearing 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