Deep Groove Ball Bearings FAG 6324

The permissible temperature range extends from -30 to +200 °C. Thanks to its sheet steel cage design and the absence of temperature-sensitive plastic seals, the roller bearing can withstand both sub-zero temperatures and high thermal loads. The choice of a lubricant approved for the respective operating temperature remains crucial for operation.

In an open design, the manufacturer does not fit integrated cover plates or sealing washers to the outer ring. This allows lubricating oil or grease to reach the balls and raceways directly. However, this design requires an external seal on the housing to protect the bearing from dust, moisture and foreign particles, and to prevent lubricant from leaking out.

Normal radial bearing clearance refers to the radial clearance set at the factory for standard applications in mechanical engineering. This clearance between the rolling elements and the raceways compensates for minor dimensional changes caused by shaft fits and moderate operating heat build-up. It is suitable for installations where there are no extreme thermal expansions or unusually tight press fits.

The sheet steel cage keeps the rolling balls at a uniform distance apart and prevents them from coming into contact with one another. Thanks to its low weight and aerodynamic shape, it facilitates the flow of liquid lubricants. Furthermore, sheet steel retains its dimensional stability and remains resistant to vibrations in the drive system across the entire temperature range from -30 to +200 °C.

As the open roller bearing is designed without factory-applied lubricant or sealing washers, lubrication is carried out during assembly or via the housing system. Depending on the design, oil circulation lubrication, an oil bath or manual grease filling may be suitable. It is important to ensure a continuous supply of lubricant to prevent metal-to-metal contact between the rolling elements and raceways.