Deep Groove Ball Bearings SKF 61804

The SKF 61804 deep-groove ball bearing combines a space-saving design measuring 20x32x7 mm with precise guidance of rotating machine components.

The 61804 deep groove ball bearing belongs to the group of thin-section bearings and is characterised by a particularly small cross-section. With an inside diameter of 20 mm, an outside diameter of 32 mm and a width of 7 mm, this single-row design is suitable for applications with very limited installation space. The component is manufactured by SKF and is made from standard roller bearing steel (100Cr6). It primarily absorbs radial forces, guides shafts precisely and can also tolerate moderate axial forces in both directions.

What advantages does the 61804 deep-groove ball bearing offer where installation space is limited?

Designs with minimal radial installation space benefit from the slim dimensions of this series. Thanks to its small material cross-section, the bearing reduces the overall weight of an assembly without compromising shaft guidance. As the outer ring is designed without a flange or ring groove, the ball bearing fits flush into cylindrical housing bores. Typical applications include general mechanical engineering and compact drive systems where precise guidance is required in very confined spaces.

When is the open design of the 61804 deep groove ball bearing appropriate?

This model has no integrated sealing washers. The open design allows unobstructed access for lubricating oils or greases within the housing, which minimises frictional resistance and promotes high rotational speeds. However, the open bearing requires a clean installation environment or a sealed machine housing to prevent dirt particles from affecting the raceways. Fitted with a robust sheet steel cage and standard radial bearing clearance, the design is rated for operating temperatures ranging from -20 to +120 degrees Celsius.