Deep Groove Ball Bearings SKF 6030 M/C3

The SKF deep groove ball bearing 6030 M/C3 (150x225x35 mm) features a solid brass cage and increased bearing clearance for industrial applications subject to thermal stress.

The SKF 6030 M/C3 deep groove ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6), designed to accommodate radial forces and axial forces in both directions. With an inner diameter of 150 mm, an outer diameter of 225 mm and a width of 35 mm, this open bearing unit is suitable for large shaft diameters in mechanical engineering. The component does not feature sealing washers, which allows lubricants to reach the raceways directly and keeps friction losses low compared to contact-sealed variants.

What is the 6030 M/C3 deep groove ball bearing suitable for in industrial applications?

This rolling bearing is primarily used to guide large shafts under combined radial and axial loads. Thanks to its open design, the ball bearing can be integrated directly into existing oil circulation or centralised lubrication systems. The single-row design with deep raceways transfers combined loads stably to the surrounding structure. As the outer ring has no flange or groove, the rolling bearing fits positively into cylindrical bearing housings, which simplifies installation.

What advantages do the brass cage and C3 clearance offer in this design?

The suffix ‘M’ denotes the brass cage, which guides the rolling elements even under vibrations or dynamic forces. Compared to sheet steel cages, brass dampens vibrations. The additional designation C3 stands for a slightly increased radial clearance. This increased radial clearance compensates for thermal expansion at operating temperatures between –20 and +150 degrees Celsius, as well as for dimensional tolerances in the design, thereby counteracting any stress on the bearing.