Deep Groove Ball Bearings SKF 6205 /C4

The SKF 6205/C4 deep groove ball bearing with a 25 mm bore offers significantly increased C4 clearance and tight tolerances for demanding industrial applications.

This single-row SKF 6205/C4 deep groove ball bearing is designed to withstand predominantly radial loads as well as moderate axial forces. The manufacturer produces this version in the Explorer performance class from standard roller bearing steel (100Cr6). A sheet steel cage guides the rolling elements evenly along the raceway. The combination of a 25 mm cylindrical bore, a 52 mm outer diameter and a 15 mm width makes this open rolling bearing a versatile component for rotating shafts in machine designs.

What is the 6205/C4 deep-groove ball bearing suitable for?

This bearing type is primarily used where significant temperature differences occur between the inner and outer rings during operation. Thanks to the greatly increased internal bearing clearance, the component compensates for thermal expansion of the shaft and housing. Typical applications include designs with shaft bearings subject to thermal stress. As this is an open design without integrated sealing washers, the installation location requires an enclosing housing with its own seal, as well as an external lubricant supply.

What are the characteristics of C4 bearing clearance and P6/P5 tolerances?

The internal radial bearing clearance C4 is significantly greater than the standard dimension. This characteristic helps to ensure that the bearing does not become stressed due to operational heating or tight fits. In addition, this component features dimensional accuracy to Class P6 and running accuracy to Class P5. These tight tolerance classes ensure low-vibration concentricity at operating temperatures ranging from –20 to +150 degrees Celsius.