Deep Groove Ball Bearings SKF 6040 M/C3

Single-row SKF deep groove ball bearing 6040 M/C3 with brass cage, C3 clearance and dimensions of 200 × 310 × 51 mm for demanding radial loads in industrial machinery.

The SKF 6040 M/C3 deep groove ball bearing is an open, single-row rolling bearing designed for demanding industrial drives. Constructed from standard 100Cr6 bearing steel, it withstands high radial loads as well as axial forces in both directions. Thanks to its precise raceways and robust internal structure, the bearing operates with low vibration and smooth running. Typical applications include heavy-duty gearboxes and general heavy machinery manufacturing.

What requirements does the 6040 M/C3 deep-groove ball bearing meet in mechanical engineering?

The bearing is designed to withstand high mechanical stresses in large drives and gearbox designs. With an outer diameter of 310 mm and a bore of 200 mm, the component guides heavy shafts with precision. The open design allows for lubrication via existing oil circuits or direct grease relubrication within the housing. This ensures that the bearing assembly remains thermally stable even during continuous operation.

What are the distinctive features of the brass cage and C3 clearance in this bearing?

The designation ‘M’ stands for a brass cage, which reliably guides the rolling elements even in the presence of vibrations and rapid changes in speed. The slightly increased radial clearance (C3) compensates for operational heating or tight fits. If the shaft expands thermally during operation, the increased bearing clearance helps to prevent stress on the rolling elements. This ensures smooth running at operating temperatures ranging from -20 to +150 degrees.