Self-Aligning Ball B. SKF 2314 /C3

The SKF 2314/C3 double-row self-aligning ball bearing, measuring 70x150x51 mm, compensates for misalignment and offers increased C3 clearance.

The 2314/C3 self-aligning ball bearing is a double-row rolling bearing with a common spherical raceway in the outer ring. This design automatically compensates for misalignment and shaft deflection during operation. SKF manufactures this model from standard 100Cr6 rolling-bearing steel to tolerance class P0/PN (equivalent to ABEC 1). A sturdy sheet steel cage guides the two rows of balls at a uniform distance. As an open rolling bearing without seals, the component is directly integrated into an external housing lubrication system.

The two rows of balls roll on the spherical outer ring raceway, allowing the inner ring to pivot with low friction in the event of slight shaft misalignment. This ensures that the force distribution within the rolling contact remains uniform even in the event of misalignment.

In which installation situations does the 2314/C3 self-aligning ball bearing compensate for misalignment?

This design is used when operational deflections of elastic shafts or misalignments between two separate bearing locations occur. Thanks to the spherical raceway in the outer ring, the inner ring and rolling element set continuously adjust to angular misalignments without harmful stress peaks occurring at the edges. The double-row bearing is primarily designed for radial loads and accommodates moderate axial forces in both directions, thereby mechanically relieving the system in the event of misalignment.

What is the function of the increased C3 bearing clearance in the 2314 self-aligning ball bearing?

The suffix /C3 denotes an increased radial clearance compared with the standard CN bearing clearance. This design clearance serves to prevent the rolling elements from jamming when thermal differences occur between the rotating inner ring and the housing. If the 70 mm shaft expands thermally during operation, sufficient residual clearance is maintained despite the interference fit and heating, which contributes to smooth and low-friction concentricity.