5212-ZZ, JAF/IJK/KYK Brand, 2-Row Angular Contact Ball Bearing (0324)5212 ZZ, 2 Row Angular Contact Ball Bearing Double Row Angular Contact Ball Bearings are functionally the same as having two single row angular contact ball bearings mounted back to back except they have only one inner ring and one outer ring. These bearings take heavy radial loads, and axial loads equally in either direction. Pre Lubricated with Shields to exclude particulates. BORE DIAMETER: 60MM (d) OUTER DIAMETER: 110MM (D) WIDTH: 36. 5MM (b)