Deep Groove Ball Bearings SKF 6220 /C3

The SKF 6220/C3 single-row deep groove ball bearing, with dimensions of 100 × 180 × 34 mm and increased bearing clearance, offers a high level of operational reliability under radial loads.

The 6220/C3 deep groove ball bearing is a single-row radial ball bearing conforming to standard specifications, manufactured from conventional 100Cr6 rolling bearing steel. With a bore of 100 mm, an outer diameter of 180 mm and a width of 34 mm, this design can accommodate high radial forces and axial forces in both directions. The open design, without integrated sealing rings, allows for direct lubrication via the surrounding system and enables an operating temperature range of -20 to +150 degrees Celsius.

What is the 6220/C3 deep groove ball bearing suitable for?

This bearing is primarily used in general mechanical engineering and in enclosed industrial drives, where the housing design ensures the supply of lubricant and protection against contamination. As the raceways are machined deep into the solid rings, the bearing guides the shaft with a high degree of smoothness. The open design also minimises internal friction losses, enabling you to operate the component effectively in oil- or grease-lubricated circuits with a continuous supply of lubricant.

What does the increased bearing clearance C3 mean in practice?

The C3 designation indicates a radial bearing clearance that is slightly greater than the standard clearance. This additional clearance between the rolling elements and raceways compensates for thermal expansion when temperature differences arise between the inner and outer rings during operation. Furthermore, the bearing clearance compensates for constrictions caused by tight fits on the shaft or in the housing. The integrated sheet steel cage guides the balls evenly and retains its dimensional stability up to a limit temperature of +150 degrees Celsius.