Barrel Roller Bearings FAG 20313 -MB

The 20313 -MB spherical roller bearing from FAG Rolling Bearings, with dimensions of 65x140x33 mm and a brass cage, offers a robust solution for high radial forces.

The 20313 -MB spherical roller bearing is a single-row, self-aligning roller bearing with spherical rollers on a continuously curved outer ring raceway. By design, this type of bearing automatically compensates for misalignment and shaft deflection. This design is manufactured by FAG Wälzlager and has a bore of 65 mm, an outer diameter of 140 mm and a width of 33 mm. It is manufactured to the standard tolerance class P0/PN (corresponding to ABEC 1) with standard radial clearance.

In which load conditions does the 20313-MB spherical roller bearing prove its worth?

It is primarily used in applications where high radial loads occur and angular misalignments between the shaft and housing need to be compensated for. The barrel-shaped rollers ensure even load distribution, even if the shaft deflects under load. Thanks to its open design without integrated sealing washers, this roller bearing is suitable for housing systems where lubricants are supplied externally and a continuous lubrication circuit is provided.

What is the function of the brass cage in the -MB variant?

The suffix ‘-MB’ denotes a guided solid brass cage, which provides additional thermal and mechanical stability compared to standard cages. It guides the rolling elements with minimal vibration and withstands heavy shock loads. Combined with the permissible temperature range of -30 to +150 degrees Celsius, the bearing is suitable for demanding environmental conditions. As this is an open bearing, operation requires a suitable housing seal to protect against dirt and lubricant loss.