Deep Groove Ball Bearings FAG 6215 -C3

The FAG 6215-C3 deep-groove ball bearing, with a 75 mm bore and increased C3 clearance, offers reliable operation under thermal loads.

The 6215-C3 deep groove ball bearing is a single-row radial ball bearing with an inner diameter of 75 mm, an outer diameter of 130 mm and a width of 25 mm. This open bearing, made from standard rolling-element bearing steel 100Cr6, guides rotating machine components with precision and primarily accommodates radial as well as moderate axial forces. Thanks to the robust sheet steel cage, the rolling elements are guided evenly. Due to its open design, this version is particularly suitable for assemblies where an external lubrication system provides a continuous supply of lubricant.

What is the 6215-C3 deep groove ball bearing suitable for?

The 6215-C3 deep groove ball bearing is primarily used in industrial drives and shaft mountings. As it is designed as an open bearing, lubricating oil or grease circulates unhindered between the inner and outer rings. The single-row design enables high speeds whilst ensuring stable shaft guidance. Typical applications are found where the surrounding machine housing already provides a seal against dirt particles and moisture.

What are the advantages of the C3 bearing clearance in the 6215 bearing?

The suffix C3 indicates a slightly increased radial clearance compared with the standard version. This feature counteracts bearing distortion caused by heating or tight fits on the shaft and housing. During operation, the inner ring often expands more than the outer ring as the temperature rises. The additional bearing clearance compensates for this temperature-induced expansion in the range from -20 to +150 degrees and helps to reduce premature wear.