Spherical Roller Bearings SKF 23940 CC/C3W33

The SKF 23940 CC/C3W33 spherical roller bearing, with dimensions of 200 × 280 × 60 mm, offers a compact design for compensating for misalignment under high loads.

The 23940 CC/C3W33 self-aligning roller bearing is an open roller bearing designed for industrial applications involving high radial forces and shaft deflection. The manufacturer, SKF, produces this double-row roller bearing from standard bearing steel 100Cr6, with dimensions of 200 mm bore, 280 mm outer diameter and 60 mm width. Thanks to the hollow spherical raceway in the outer ring, the roller set automatically adjusts to shaft misalignment. A dimensionally stable sheet steel cage guides the rollers evenly. The design is suitable for a temperature range of -30 to +200 degrees.

What loads and movements does the 23940 CC/C3W33 spherical roller bearing accommodate?

This self-aligning roller bearing is designed for applications where high radial forces and axial loads in both directions are present and misalignment may occur. The double-row design automatically compensates for misalignment between the inner and outer rings via the hollow-spherical outer ring raceway. This ensures that the load-carrying capacity remains stable even when the shaft deflects.

What do C3 bearing clearance and the W33 groove mean for the design?

The C3 designation indicates an increased radial clearance compared with the standard version. This clearance helps to compensate for stresses caused by thermal expansion of the shaft. With the suffix W33, the bearing features a circumferential lubrication groove with lubrication holes in the outer ring, which facilitates the supply of lubricant during operation.

Furthermore, the bearing offers increased running accuracy of class P5 with dimensional accuracy PN. As this is an open design, users must seal the bearing housing externally against dirt and moisture.