With two structures of bore cylindrical or tapered and retainers made of steel sheet or synthetic resins,the bearings are characteristic of their spherically formed outer ring raceways allowing for misalignment within 3 degree deflection between inner ring and outer ring,so as to compensate concentricity and deflection errors.

our company can supply double roll self-aligning ball  bearings with small and big size,12xx series and 2xxx series ,with high quanlity and competitive price , if you have the interiest,pls feel free to contact us.