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Spherical roller bearings usually have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The center point of the sphere in the outer ring raceway is at the bearing axis which permit the bearings to self-align and insensitive to misalignment of the shaft relative to the housing, which can be caused by shaft deflection.
Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions. Spherical roller bearings are available with either a cylindrical or tapered bore.