Self-Aligning Spherical Roller Bearings

Spherical Roller Bearings

Self-aligning roller bearings have the inner ring with double row races; The outer ring with spherical race and the rolling object is drum shape. The outer race center is consistent with the center of bearings, so the bearings have the function of self-aligning; Even if there is some setting error between bearing and bearing box or axis deflection so that the inner ring and the outer ring are in slant condition, the bearings can worked normally.
In design: Type C is pressed cages, type CA, type MB, type EM are brass cages.

Self-aligning roller bearings have barrel-shaped rollers between the inner ring, which has two raceways, and the
Outer ring which has one spherical raceway. Since the center of curvature of the outer ring raceway surface coinc-
Ides with the bearing axis, they are self-aligning in a manner similar to that of self-aligning ball bearings. Therefore,
If there is deflection of the shaft or housing or misalignment of their axies, it is automatically corrected so excessive
Force is not applied to the bearings.
Self-aligning roller bearings can take, not only heavy radial loads, but also some axial loads in either direction.
They have excellent radial load-carrying capacity and are suitable for use where there are heavy or impact loads.
Some bearings have tapered bores and and maybe mounted directly on tapered shafts or cylindrical shafts using
Adapters or withdrawal sleeves.
Pressed steel and machined brass cages are used.

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