Deep Groove Ball Bearings FAG 6040 -M-C3

The 6040 -M-C3 deep groove ball bearing from FAG Wälzlager, with dimensions of 200 × 310 × 51 mm, a brass cage and C3 clearance, provides a solid basis for heavy-duty shaft mountings.

The 6040 -M-C3 deep groove ball bearing is a single-row radial ball bearing designed for large shaft diameters in mechanical and plant engineering. It primarily absorbs radial forces and also supports axial loads in both directions. As it is manufactured from standard roller bearing steel 100Cr6, the rolling element and ring set remains dimensionally stable under varying loads. As an open roller bearing without integrated sealing washers, this component is particularly suitable for systems with on-site lubrication.

What is the 6040 -M-C3 deep groove ball bearing with brass cage suitable for?

This large bearing is primarily used in demanding shaft mountings with high mechanical and thermal requirements. The solid brass cage guides the rolling elements reliably, enabling the bearing to perform well even under vibration or at higher speeds. As brass minimises friction between the cage and the balls, the bearing operates with thermal stability. Combined with the wide temperature range of –30 to +200 degrees, this design is suitable for demanding environmental conditions.

What distinguishes the version with C3 clearance?

The suffix C3 indicates a slightly increased radial clearance compared with the standard version. This increased clearance compensates for thermal expansion caused by temperature differences between the inner and outer rings. Furthermore, the C3 radial clearance compensates for the narrowing that inevitably occurs with tight press fits on large shafts. Design engineers choose this variant to effectively reduce the risk of restrictive bearing play during operation at elevated temperatures.