Deep Groove Ball Bearings SKF 61901

The SKF 61901 deep-groove ball bearing features compact dimensions of 12 × 24 × 6 mm, making it ideal for space-saving designs with standard radial clearance.

The SKF 61901 single-row deep groove ball bearing accommodates both radial and axial loads in both directions. Manufactured from standard 100Cr6 rolling-element bearing steel, this design combines a 12 mm bore with an outer diameter of 24 mm and a narrow width of 6 mm. Thanks to its reduced cross-section, this bearing is suitable for designs with limited installation space. Fitted with a sheet steel cage and standard radial clearance, the open design operates with low friction in lubricated systems.

What is the 61901 deep groove ball bearing suitable for?

Design engineers primarily use the 61901 deep groove ball bearing where limited radial installation space and a low component weight are required. Typical applications include compact shaft mountings and precision mechanical assemblies. As the bearing is open at both ends, installation requires a clean operating environment or an enclosed housing with its own sealing. The component can be used at operating temperatures between –20 and +120 degrees.

What are the advantages of the open design of the 61901 deep groove ball bearing?

The open design, without integrated sealing washers, allows for unimpeded lubricant flow during oil or grease lubrication. This ensures low-friction operation of the rolling bearing, which facilitates higher speeds compared to contact-sealed variants. Note the tolerance class P0/PN (ABEC 1), which specifies the standard accuracy for cylindrical bearing seats. During assembly, an external housing seal is recommended to minimise the ingress of dirt particles.