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Spherical roller bearings have a character of self-aligning, because the center of curvature of its raceway surface falls right on the shaft center, even when the shaft or the housing is bending or inclining slightly, this shaft deflection cannot make the centers of curvature and shaft shift. This means that the bearings can self-align instead of increasing other kinds of unnecessary strength due to wrong alignment of shaft relative to housing. Spherical roller bearings can accommodate radial load and two directions axial load. They usually apply to heavy load and impact load, and are widely used in the fields of metallurgy, mining, petroleum machineries, paper making machineries, construction machineries, and other large machineries, etc.NNN is specialized in medium and large size spherical roller bearings; in addition NNN also produces special purpose spherical roller bearings in split structures and non-standard types.
