Self-aligning roller bearing

The self-aligning roller bearing has two rows of rollers. It mainly bears radial load and axial load in any direction. It has high radial load capacity, especially suitable for working under heavy load or vibration load, but can not bear pure axial load. The outer raceway of this kind of bearing is spherical, so its alignment performance is good and it can compensate coaxiality error.
There are two rows of symmetrical spherical roller, the outer ring has a common spherical raceway, the inner ring has two raceways inclined to the axis of the bearing, which have good alignment performance. Bearings can still be used normally when the axis is bent or installed with different centers. The alignment varies with the size series of bearings. Generally, the allowable alignment angle is 1-2.5 degrees, and the load capacity of this type of bearings is comparable. Large, in addition to the radial load bearing can also withstand bidirectional axial load, has a good impact resistance, generally speaking, the working speed allowed by the self-aligning roller bearings is low.