Deep Groove Ball Bearings FAG 6220 -C4

Single-row deep-groove ball bearing 6220 -C4 from FAG Wälzlager with a 100 mm bore, 180 mm outer diameter and increased C4 clearance for thermally stressed industrial applications.

The 6220-C4 deep groove ball bearing from FAG primarily accommodates radial forces as well as axial loads in both directions. This single-row roller bearing is made from standard bearing steel (100Cr6) and operates within a temperature range of -20 to +150 degrees. Thanks to its open design without an integrated seal, lubricant can reach the raceways and balls unhindered. The guided sheet-steel cage maintains the correct spacing between the rolling elements and ensures smooth running under demanding operating conditions in mechanical engineering.

What is the 6220-C4 deep groove ball bearing suitable for in mechanical and plant engineering?

Design engineers primarily select the 6220-C4 deep groove ball bearing for shaft diameters of 100 mm, where significant heating occurs during operation. Typical areas of application include systems with high operating temperatures or temperature differences between the shaft and housing. Thanks to its open design, the bearing is suitable for oil-lubricated systems or housings with on-site sealing. The component accommodates combined radial and axial loads and can be integrated into enclosed assemblies.

What are the advantages of the increased C4 bearing clearance in this deep-groove ball bearing?

The internal C4 clearance is greater than the standard clearance of normal radial ball bearings. It compensates for thermal expansion between the shaft and housing when the inner ring becomes warmer than the outer ring during operation. Even tight fits reduce the operating clearance after press-fitting. The C4 clearance helps to reduce bearing stresses and premature wear caused by thermal effects. For applications with low thermal expansion, however, a version with standard clearance or C3 is usually recommended.