5210-ZZ, JAF/IJK/KYK Brand, 2-Row Angular Contact Shielded Ball Bearing (0725)5210 ZZ, JAF KYK Brand, Double Row Angular Contact Ball Bearings are functionally same as 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. 2 Row Angular Contact Ball Bearing Double row angular contact ball bearing, supporting combined radial and bidirectional thrust loads. Ball contact angle of