Deep Groove Ball Bearings SKF 6215 -2Z/C3

The SKF 6215 -2Z/C3 deep groove ball bearing, measuring 75x130x25 mm, features non-contacting cover plates and increased bearing clearance for industrial speeds.

The 6215 -2Z/C3 deep groove ball bearing is a single-row radial ball bearing from SKF, manufactured from standard rolling-element steel (100Cr6). The component primarily absorbs radial loads and guides shafts with a diameter of 75 mm within the housing. Thanks to the symmetrical raceway geometry, the design also transmits axial forces in both directions. The integrated sheet steel cage guides the rolling elements evenly along the raceway, which reduces vibrations and promotes smooth running.

In which operating environments does the 6215-2Z/C3 deep-groove ball bearing perform well?

This design is primarily used in shaft bearings operating at medium to high speeds which must accommodate axial loads as well as radial forces. As the bearing is covered on both sides by sheet metal end shields (2Z), the interior of the bearing is protected from coarse particles, whilst lubricant remains within the component. As the cover plates operate without contact, no additional frictional resistance is generated, which keeps heat build-up to a minimum at higher speeds.

What effect does the C3 bearing clearance have on the deep-groove ball bearing 6215 -2Z/C3?

The suffix C3 indicates a slightly increased radial clearance compared with the standard version. This increased clearance between the balls and the raceway compensates for thermal expansion that may occur during continuous operation at higher temperatures or due to tight fits on the shaft and housing. The bearing is suitable for a temperature range of -20 to +120 degrees Celsius. With tolerance class P0 (ABEC 1) and a flangeless outer ring, the component can be fitted with precision.