1. Product Overview SC2522622M single-row non-standard thin-wall deep groove ball bearing. The suffix M refers to solid machined brass cage, which boasts better rigidity, heat resistance and anti-deformation performance than regular stamped steel cages under high-temperature gear oil working environment. It is fully interchangeable with NSK SC2522622M, specially developed for miniature hydraulic valve control shafts inside Asian passenger car automatic transmissions. Three