Deep Groove Ball Bearings SKF 6215 /VA201

The SKF 6215/VA201 deep groove ball bearing is a single-row high-temperature bearing measuring 75 × 130 × 25 mm, designed for operating temperatures up to +250 degrees.

This single-row deep-groove ball bearing 6215 /VA201 has been designed for thermally demanding operating environments. With an inside diameter of 75 mm, an outside diameter of 130 mm and a width of 25 mm, the bearing primarily accommodates radial loads as well as moderate axial loads. Both the bearing rings and the rolling elements feature a manganese phosphate coating, which reduces friction and provides protection against fit rust. An integrated special grease enables a wide temperature range from -40 to +250 degrees.

What characteristics distinguish the 6215 /VA201 deep groove ball bearing in high-temperature applications?

This bearing is suitable for designs subject to high thermal loads, where standard greases reach their limits. Thanks to the temperature-resistant special grease, lubrication performance is maintained even when the bearing heats up. The open design, without sealing washers, allows for direct integration into existing lubrication systems within the surrounding structure. A robust sheet steel cage keeps the rolling elements neatly aligned within the bearing assembly, even under sustained heat exposure.

What is the significance of the significantly increased bearing clearance in this design?

The significantly increased radial bearing clearance specifically compensates for the thermal expansion of the components at operating temperatures of up to +250 degrees. Even if the shaft and bearing rings expand under heat, sufficient internal operating clearance is maintained to prevent the rolling elements from jamming. When designing the application, it must be borne in mind that this open bearing should be shielded against external contaminants. The design complies with tolerance class P0/PN or ABEC 1 and features an outer ring without a flange or groove.