Deep Groove Ball Bearings SKF 61956 MA

The SKF 61956 MA deep groove ball bearing, measuring 280 × 380 × 46 mm and featuring an external brass cage, offers high stability for heavy-duty industrial applications.

The SKF 61956 MA single-row deep groove ball bearing, as an open radial ball bearing, primarily accommodates radial forces as well as axial loads in both directions. Manufactured from standard rolling-element bearing steel 100Cr6, this large bearing features the narrow design of the 619 series. The design, which features no flange or groove on the outer ring, facilitates cylindrical mounting in precisely fitted housings. The open design allows the lubricant to be applied directly to the raceways.

In which applications is the 61956 MA deep groove ball bearing used?

Large shaft diameters require rolling bearings with high load-carrying capacity whilst taking up minimal radial space. This large bearing is primarily used in general mechanical engineering, in gearboxes for heavy industrial plant and on heavy drive shafts. As the component is of open design, it is primarily suitable for oil- or grease-lubricated systems within enclosed housings. There, a secondary seal protects the rolling elements from contamination and moisture.

What is the function of the externally guided brass cage?

The suffix ‘MA’ denotes a solid brass cage that is guided on the outer ring. This external guidance reduces cage vibrations at varying speeds and under high acceleration forces. Brass also demonstrates high wear resistance at temperatures ranging from -20 to +150 degrees. The standard radial bearing clearance, in conjunction with tolerance class P0 (ABEC 1), ensures smooth running under normal operating conditions.