Barrel Roller Bearings FAG 20318 -MB

The FAG 20318 -MB spherical roller bearing, with dimensions of 90 × 190 × 43 mm, provides robust support for high radial loads in the presence of slight misalignments.

The FAG 20318 -MB spherical roller bearing is a single-row rolling bearing with spherical rollers and a cylindrical bore. The design automatically compensates for angular misalignment between the shaft and the housing. Designed as an open bearing, it can be flexibly integrated into existing lubrication systems. Maintenance engineers and designers appreciate the standardised dimensions – a 90 mm bore, 190 mm outer diameter and 43 mm width – which facilitate straightforward replacement in industrial drive systems.

What is the FAG 20318-MB spherical roller bearing suitable for?

This bearing is particularly suitable for heavy machinery subjected to high radial loads, where shaft deflection or misalignment may occur. Typical applications include industrial bearing arrangements subject to shock loads and elastic shaft deflection. Thanks to the spherical roller design, the barrel bearing distributes the forces evenly across the raceway. Even with slight misalignments, the design reduces edge stresses and thus supports uniform concentricity during demanding continuous operation.

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

The suffix ‘-MB’ denotes a solid brass cage that guides the barrel rollers. This design withstands vibrations and shock loads. Furthermore, the brass construction supports the permissible operating temperature range of –30 to +150 degrees Celsius. For engineers involved in planning, this means that in harsh conditions, with unstable drives or under thermal stress, the brass cage provides high mechanical stability for the internal guide.