Deep Groove Ball Bearings SKF 6215 /C3

The SKF 6215/C3 deep groove ball bearing, with dimensions of 75 × 130 × 25 mm and increased bearing clearance, offers reliable operation under thermal stress.

The 6215/C3 deep groove ball bearing is a single-row rolling bearing from SKF, made from standard 100Cr6 bearing steel. It primarily withstands radial loads, but also supports the shaft under moderate axial forces in both directions. Thanks to its open design without sealing rings, this bearing is suitable for applications where lubricant is supplied from the outside or where a sealed housing keeps out particles. A sturdy sheet steel cage guides the rolling elements evenly into the deep raceways.

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

This rolling bearing is typically used in bearing arrangements where temperature differences between the inner and outer rings occur during continuous operation. Thanks to its single-row design, the unit runs with low friction and is suitable for high speeds.

Manufacture to tolerance class P0 ensures a precise fit in standardised mounting bores and on corresponding shaft sections. Designed for a temperature range of -20 to +150 degrees, the rolling bearing steel retains its dimensional stability even under thermal stress.

What are the advantages of the C3 clearance in this open bearing?

The C3 designation indicates an increased radial clearance compared with standard clearance. This additional clearance compensates for dimensional changes when the inner ring expands due to press fits or when the operating heat of the shaft causes radial material expansion.

Consequently, the increased operating clearance counteracts undesirable stress on the rolling elements. As this is an open design without seals, the choice of lubricant and external sealing arrangements can be flexibly adapted to the ambient conditions.