Deep Groove Ball Bearings SKF 6406

The SKF 6406 open deep-groove ball bearing, measuring 30 × 90 × 23 mm, is suitable for high speeds and the targeted transmission of radial forces.

The SKF 6406 deep groove ball bearing is a single-row rolling bearing made from 100Cr6 bearing steel, designed for mechanical rotational movements in mechanical engineering and plant construction. Its open design allows direct access to lubricant via external oil circuits or housing grease fittings. Thanks to its dimensions – a 30 mm bore, 90 mm outside diameter and 23 mm width – this rolling bearing primarily accommodates radial loads as well as axial forces in both directions.

In which applications is the 6406 deep-groove ball bearing used?

This rolling bearing is primarily used in sealed housings where the bearing location is structurally sealed off from the outside. As no sliding seal rings are fitted, friction losses are minimal, which facilitates smooth running at higher speeds. A sturdy sheet steel cage guides the rolling elements evenly through the deep raceways, whilst the component is designed for operating temperatures ranging from –20 to +120 degrees Celsius.

Why is the open design crucial for the 6406 deep-groove ball bearing?

Open roller bearings allow direct flushing by lubricants and keep rotational resistance low. As there is no integrated protection against the ingress of dirt, the surrounding machine housing shields the bearing from contaminants. The standard radial bearing clearance and the tolerance class P0/PN (ABEC 1) facilitate fitting onto cylindrical shafts with a 30 mm bore and facilitate scheduled replacement during maintenance work.