1. Product Overview 7212 is single row open angular contact ball bearing. It is engineered to sustain combined radial load and unidirectional axial thrust. Normally applied in duplex sets (UA / DB / DF) to balance opposite axial forces. Multiple contact angle variants available: C=15°, AC=25°, B=40°. Open design supports regular re-lubrication and maintenance. Widely equipped on industrial gearboxes, screw compressors, machine tool spindles and medium-high speed heavy-duty