Spherical Roller Bearings SKF 23220 CC/W33

The SKF 23220 CC/W33 spherical roller bearing, measuring 100 × 180 × 60.3 mm, offers high load-carrying capacity and compensates for misalignment during operation.

The SKF 23220 CC/W33 self-aligning roller bearing is designed as a double-row roller bearing for demanding mechanical loads. It accommodates high radial forces as well as combined axial forces in both directions. It is manufactured from standard rolling-element bearing steel 100Cr6, ensuring dimensional stability over a temperature range of –30 °C to +200 °C. A sheet steel cage guides the rolling elements between the raceways with minimal vibration. The open design with standard radial clearance allows for the application-specific choice of grease or lubricating oil.

In which installation situations does the bearing prove its worth?

The design is suitable for applications where load-bearing shafts deflect under load or where there are manufacturing-related misalignments between the bearing positions. The hollow spherical raceway in the outer ring allows the inner ring, together with the set of rollers, to be freely adjusted. In this way, the bearing prevents excessive edge stresses on the rolling elements. Typical applications include heavy-duty industrial drives and rotating shaft systems subject to high impact and continuous loads.

What are the functions of the lubrication groove and P5 running accuracy?

The suffix W33 denotes an annular lubrication groove with lubrication holes in the outer ring. This allows lubricant to reach the lubrication point directly between the two rows of rollers, thereby reducing frictional resistance. The tolerance class combines the standard dimensional accuracy PN for mating dimensions with P5 running accuracy for rotating parts. This tighter concentricity reduces concentricity errors and ensures smooth running at higher speeds.