SKF self-aligning ball bearing

Self-aligning ball bearing is a double row bearing with spherical outer raceway.

The inner ring, ball and cage can rotate freely around the center of the bearing and have self-alignment. Its self-aligning capability compensates for misalignment, shaft deformation and housing deformation. Self-aligning ball bearings are suitable for transmission bearings where it is difficult to center the shaft and the upper shell, and the shaft is prone to deflection.

SKF self-aligning ball bearing is a double-row ball bearing with the outer ring raceway processed into spherical shape and the inner ring with two deep groove raceways, 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 cannot bear pure axial load, and its limit speed is lower than that of deep groove ball bearings. This type of bearing is mostly used on double-support shafts that are prone to bending under load, and in parts where the double-bearing seat holes cannot guarantee strict coaxiality, but the relative inclination of the centerline of the inner ring and the centerline of the outer ring shall not exceed 3 Spend.

SKF self-aligning ball bearing basic type
Self-aligning ball bearings of series 12, 13, 22 and 23 can have cylindrical or conical bores. The self-aligning ball bearing with the taper of the bearing bore 1:12 (code suffix K) can be directly mounted on the conical shaft, or can be mounted on the cylindrical shaft through an adapter sleeve. In addition to providing a non-seal self-aligning In addition to ball bearings, basic self-aligning ball bearings (code suffix 2RS) with seal covers at both ends can also be provided.

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

SKF sealed self-aligning ball bearings
Sealed self-aligning ball bearings (code suffix .2RS) have sealing covers (contact seals) at both ends. To ensure longevity, they are greased at the factory. The minimum operating temperature of sealed bearings is limited to -30°C.

SKF self-aligning ball bearing alignment
Self-aligning ball bearings allow the shaft to deflect 4° around the center of the bearing, and sealed self-aligning ball bearings can compensate up to 1.5°.