Barrel Roller Bearings FAG 20218 -MB

The FAG 20218 -MB spherical roller bearing is an open roller bearing with a 90 mm bore, an outer diameter of 160 mm and a solid brass cage.

The FAG 20218 -MB spherical roller bearing can withstand high radial loads and compensates for misalignment or shaft deflection with angular movement. Thanks to its spherical rollers, this bearing is suitable for industrial applications involving shock loads. In the open version without a seal, the component is designed for lubricating oil or grease. With main dimensions of 90 x 160 x 30 mm, the design complies with standardised industrial dimensions to standard tolerance P0/PN or ABEC 1.

What is the FAG 20218-MB barrel bearing suitable for?

This single-row spherical roller bearing is particularly suitable for shaft assemblies where operational deflection or misalignment occurs. As the bearing automatically compensates for angular misalignment during operation, it prevents excessive edge stresses on the roller elements and thus promotes even load distribution across the entire raceway width.

In suitable housing designs, the bearing is ideally used as a non-locating or locating bearing under moderate axial forces in both directions. The bearing is particularly useful where elastic deformations of the surrounding structure need to be compensated for.

What are the advantages of the brass cage in the -MB variant?

The solid brass cage, identified by the suffix -MB, offers high strength under demanding operating conditions and mechanical vibrations. Brass is suitable for high acceleration forces as well as thermal loads within the permissible temperature range of -30 to +150 degrees Celsius.

The standard radial bearing clearance provides balanced operating clearance under normal operating conditions. As an open bearing, the bearing location requires a suitable lubricant supply via the housing, as well as effective protection against the ingress of contaminants.