Spherical roller bearing  is a bearing with two rows of inner ring raceways, a self-aligning outer ring raceways, and a self-aligning roller. The raceway surface center of the outer ring is consistent with the bearing center, so it has automatic centering performance. It can automatically adjust the eccentricity caused by installation error or deflection between the shaft and bearing pedestal. When the center line of the outer ring and the inner ring is relatively less than 1°~2.5°, the bearing can still work normally. Can bear radial load and bidirectional axial load, especially suitable for heavy load and impact load.
This kind of bearing has cylindrical inner hole and tapered inner hole in two forms. The bearing with taper hole is fixed on the bearing with fixed sleeve or detachable sleeve, which is easy to install and disassemble.