Angular Contact Ball B. SKF 7311 BECBP

The SKF 7311 BECBP angular contact ball bearing, with a 55 mm bore and a 40-degree contact angle, offers high load-carrying capacity for unilateral axial and radial loads.

The SKF 7311 BECBP angular contact ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6) in the Explorer design. In this open bearing, the raceways of the inner and outer rings are offset relative to each other in the direction of the bearing axis. With a bore of 55 mm, an outside diameter of 120 mm and a width of 29 mm, this design accommodates simultaneously acting radial and axial forces. The design does not require an integrated seal and has a standard radial clearance.

In which installation scenarios does the 7311 BECBP angular contact ball bearing accommodate axial and radial forces?

The bearing is designed for applications where radial loads occur in combination with axial guiding forces in a single direction. As axial forces can, by design, only be accommodated in one direction, in practice the bearing is usually operated in conjunction with a second bearing mounted in the opposite direction. The version with a cylindrical outer ring without a flange supports precise axial and radial guidance of the supported shaft.

What do the tolerance classes and universal pairing mean for the 7311 BECBP?

This model combines dimensional accuracy to Class P6 with running accuracy to Class P5. These reduced manufacturing tolerances contribute to high concentricity during rotating operation. Thanks to the design for paired arrangement, a defined low axial clearance is achieved when assembling a bearing pair in an O or X configuration. The integrated polyamide cage guides the rolling elements and is designed for an operating temperature range of -20 to +120 degrees Celsius.