Deep Groove Ball Bearings SKF 6306 /C4

The SKF deep groove ball bearing 6306 /C4, measuring 30x72x19 mm, offers clearance under high thermal loads thanks to its significantly increased bearing clearance.

The single-row deep groove ball bearing 6306/C4 from SKF primarily accommodates radial loads as well as axial forces in both directions. Manufactured from standard rolling bearing steel 100Cr6, the design complies with tolerance class P0/PN (ABEC 1). A sheet steel cage guides the rolling elements evenly within the raceway. As this model is designed without sealing washers, it can be integrated directly into external lubrication circuits and lubricated flexibly with oil or grease.

What is the 6306/C4 deep groove ball bearing suitable for?

This open roller bearing is suitable for designs and bearing locations where lubricating oil or grease is supplied from the outside. With a permissible temperature range of -20 to +150 degrees, the component is suitable for thermally demanding environments. The absence of contact seals significantly reduces the friction torque, making the ball bearing suitable for applications involving higher speeds.

When is the increased C4 bearing clearance required?

The significantly increased radial clearance (C4) specifically compensates for temperature-induced material expansion between the inner and outer rings. If a significant temperature gradient arises during operation, or if the bearing seats require tight fits on the shaft and housing, sufficient operating clearance is maintained. This characteristic helps to prevent mechanical binding of the rolling elements in the raceway. Before installation, it must always be checked whether the design provides for this increased bearing clearance.