Self-Aligning Ball B. SKF 2310 K/C3

The SKF 2310 K/C3 double-row self-aligning ball bearing, with a 50 mm tapered bore and C3 clearance, compensates for misalignment during operation.

The SKF 2310 K/C3 self-aligning ball bearing is a double-row rolling bearing made from standard 100Cr6 rolling bearing steel. With key dimensions of a 50 mm bore diameter, an 110 mm outer diameter and a width of 40 mm, the component primarily accommodates radial loads. The hollow-spherical outer ring raceway allows for misalignment between the inner and outer rings, thereby compensating for shaft deflection during operation. The integrated sheet steel cage guides the rolling elements of both rows of balls evenly.

In which applications does the 2310 K/C3 self-aligning ball bearing compensate for misalignment?

This design is particularly effective where misalignment or elastic shaft deflection occurs. Thanks to its double-row design with a shared spherical outer ring raceway, the bearing automatically compensates for angular misalignment. Typical applications include mountings on long shafts and designs where misalignment of the housing cannot be ruled out due to manufacturing tolerances. As an open bearing without sealing washers, lubrication with rolling-element grease or lubricating oil is supplied externally via the surrounding machine housing.

What is the purpose of a tapered bore and C3 clearance?

The suffix ‘K’ denotes a tapered bore with a standardised ratio of 1:12. This internal profile facilitates mounting on tapered shaft seats or, using a suitable adapter sleeve, on cylindrical shafts. When fitted by axial sliding, the radial clearance is measurably reduced. To maintain the required mobility within the temperature range of –30 to +150 degrees after firm press-fitting, the bearing is supplied ex works with the increased C3 clearance class.