CA type self-aligning roller bearings have two rows of symmetrical spherical rollers, the outer ring has a shared spherical raceway, and the inner ring has two raceways tilted at an angle to the bearing axis, which have good self-aligning performance. When the shaft is bent or installed unevenly, the bearing can still be used normally. The self-aligning performance varies with the size series of the bearing, and the generally allowed self-aligning angle is 1-2.5 degrees. This type of bearing has a large load capacity, and can not only withstand radial loads but also axial loads acting in both directions, with good impact resistance.

Application areas: vibration, road rollers, pile drivers.