Self-Aligning Ball B. SKF 2311

The SKF 2311 double-row self-aligning ball bearing with a 55 mm bore compensates for misalignment and is suitable for demanding industrial applications.

The SKF 2311 self-aligning ball bearing is a double-row rolling bearing made from standard bearing steel (100Cr6) with a cylindrical bore. Thanks to the common spherical raceway in the outer ring, the bearing automatically adjusts itself during operation. This feature helps to compensate for shaft deflection and misalignment between the housing and the shaft by allowing angular movement. As an open component without an integrated seal, the bearing can be flexibly integrated into existing lubrication systems.

What is the 2311 self-aligning ball bearing suitable for in operation?

Design engineers and maintenance personnel prefer to use the 2311 self-aligning ball bearing on long shafts or flexible support structures where operational deflection may occur. Thanks to its double-row ball arrangement, the rolling bearing absorbs radial forces whilst simultaneously transmitting moderate axial forces in both directions. Typical applications are found in general mechanical and plant engineering for industrial shaft mountings where misalignment between the housing and the rotating shaft cannot be completely avoided, either due to the design or the installation process.

What are the advantages of the sheet steel cage and the open design?

The version with a sheet steel cage guides the rolling elements in an orderly manner whilst maintaining a low mass. As a result, the bearing retains its dimensional stability within a temperature range of -30 to +150 degrees. As no contacting sealing washers are fitted, the component operates with low frictional resistance within the system. Users can apply grease or lubricating oil appropriate to the specific application. The manufactured tolerance class P0/PN (corresponding to ABEC 1) defines standardised mounting dimensions for direct and precise replacement.