SKF Self aligning ball bearing

Self aligning ball bearing is a double row bearing with spherical outer race

the inner ring, ball and cage can rotate freely around the bearing center with self-aligning. Its centering ability can compensate the centering error, shaft deformation and bearing seat deformation. Self aligning ball bearings are suitable for transmission bearings where it is difficult to center the shaft and upper shell and the shaft is prone to deflection

SKF self-aligning ball bearing is a double row ball bearing with spherical outer race and two deep groove raceways on the inner race, which has self-aligning performance. It is mainly used to bear radial load. While bearing radial load, it can also bear a small amount of axial load, but generally it can not bear pure axial load. Its limit speed is lower than that of deep groove ball bearing. This kind of bearing is mostly used on the double support shaft that is prone to bending under load, and in the parts where the double bearing seat hole cannot ensure strict coaxiality, but the relative inclination between the center line of the inner ring and the center line of the outer ring shall not exceed 3 degrees

basic types of SKF self-aligning ball bearings
the inner holes of 12, 13, 22 and 23 series self-aligning ball bearings can be cylindrical or conical. The self-aligning ball bearing with a taper of 1:12 (code suffix K) in the bearing inner hole can be directly installed on the conical shaft or on the cylindrical shaft through a tightening sleeve. Fag can not only provide non sealed self-aligning ball bearings, but also provide basic types of self-aligning ball bearings with sealing covers at both ends (code suffix 2RS)

SKF self-aligning ball bearing bearing bearing clearance
the basic type of cylindrical hole. The manufacturing clearance group of self-aligning ball bearing is the ordinary group, and the bearing with larger radial clearance than the ordinary group (code suffix C3) is available on demand. The basic type of tapered hole is self-aligning ball bearing, and the radial clearance is C3 group which is larger than the ordinary group

SKF sealed self-aligning ball bearing
sealed self-aligning ball bearing (code suffix. 2RS) is provided with sealing cover (contact seal) at both ends. In order to ensure their service life, they have been added with grease in the manufacturer. The minimum operating temperature of sealed bearings is limited to - 30 ℃

alignment of SKF self-aligning ball bearing
the shaft of self-aligning ball bearing is allowed to deflect 4 ° around the bearing center, and the maximum compensation of sealed self-aligning ball bearing is 1.5 °