Deep Groove Ball Bearings FAG 6218

The FAG 6218 deep-groove ball bearing, measuring 90 × 160 × 30 mm, features an open design suitable for a wide range of industrial applications.

The 6218 deep groove ball bearing is a single-row rolling bearing manufactured by FAG from standard rolling bearing steel 100Cr6. It primarily withstands radial loads and supports the shaft in both directions, even under moderate axial forces. With a bore of 90 mm, an outside diameter of 160 mm and a width of 30 mm, this design complies with standardised dimensions used in industrial mechanical engineering and plant construction.

What is the FAG 6218 deep groove ball bearing suitable for?

This rolling bearing is typically used in industrial drives, housing bearings and rotating assemblies. Designers use the open design primarily in enclosed housing systems where oil circulation lubrication or a centralised lubrication system is in place. Thanks to the 100Cr6 material and the sheet steel cage, the component is designed for use in a temperature range of -20 to +150 degrees Celsius. The outer ring is cylindrical in design and has neither a flange nor a ring groove.

What are the advantages of the open design with a sheet steel cage?

As the bearing is designed without integrated lip seals or cover plates, the lubricant reaches the raceways and rolling elements directly. This reduces frictional resistance during operation. The guided sheet steel cage keeps the balls at a uniform distance apart and contributes to smooth running. When designing the assembly, it is important to ensure that open bearings are protected from dirt particles and moisture by the surrounding housing structure.