Spherical Roller Bearings FAG 23940 -S-MB

The 23940 -S-MB spherical roller bearing from FAG Wälzlager, with dimensions of 200 × 280 × 60 mm, offers a high-load-capacity solution for heavy-duty shaft mountings in mechanical engineering.

The 23940 -S-MB self-aligning roller bearing is primarily used where high radial forces act on load-bearing shafts and misalignment must be compensated for at the same time. As an open bearing made from standard rolling-element bearing steel (100Cr6), the design accommodates operational shaft deflection. Thanks to the lubrication groove and lubrication holes in the outer ring, lubricant can be directed straight into the raceway. The integrated brass cage ensures the rolling elements remain dimensionally stable even under demanding operating conditions.

What is the 23940 -S-MB self-aligning roller bearing suitable for in operation?

This roller bearing is designed for heavy mechanical loads involving combined radial and axial forces. Typically, two symmetrical rows of rollers absorb the acting forces, whilst the hollow-spherical outer ring raceway automatically compensates for angular misalignment. With a permissible temperature range of -30 to +200 degrees, the design is suitable for environments subject to thermal stress.

What are the advantages of the brass cage in this bearing?

Brass, as the cage material, is characterised by high mechanical strength and resistance to vibrations. The cage design guides the roller sets precisely and retains its dimensional stability under dynamic accelerations. In combination with standard radial bearing clearance and tolerance class P0/PN (ABEC 1), this results in standardised mounting conditions on cylindrical shaft seats. A lubrication groove and lubrication holes in the outer ring are provided for the supply of lubricant.