Deep Groove Ball Bearings SKF 6210 /C4

SKF single-row deep groove ball bearing 6210 /C4 with a 50 mm bore, open design and significantly increased C4 radial clearance for thermally stressed industrial applications.

The SKF 6210/C4 deep groove ball bearing accommodates both radial and axial loads in both directions. Manufactured from standard rolling-element bearing steel 100Cr6, this single-row bearing has a bore of 50 mm, an outside diameter of 90 mm and a width of 20 mm. As this design does not use sealing washers, lubricant reaches the rolling elements directly during operation. The integrated sheet steel cage guides the balls evenly and is suitable for operating temperatures ranging from -20 to +150 degrees.

What is the 6210/C4 deep-groove ball bearing suitable for?

This bearing is primarily used in units where high operating temperatures or significant temperature differences between the shaft and housing occur. Typical applications include general mechanical engineering, industrial gearboxes and larger electric motors. The open design allows integration into existing oil or grease circulation systems. Furthermore, the bearing can handle medium to high speeds whilst ensuring stable guidance of rotating components.

When is the significantly increased radial clearance C4 required?

C4 bearing clearance exceeds the standard range as well as the C3 specification and provides greater radial clearance between the outer ring, balls and inner ring. If the shaft heats up more than the housing during operation, the inner ring expands. The existing clearance compensates for this thermal expansion without the rolling elements becoming stressed. Tight fits on the shaft and housing bore also reduce the operating clearance, which is why designers specifically opt for the C4 classification in such installation scenarios.