Deep Groove Ball Bearings SKF 629 -2Z

The SKF 629-2Z deep-groove ball bearing, measuring 9x26x8 mm and featuring cover plates on both sides, offers contact-free protection against dirt particles.

The 629-2Z deep groove ball bearing is a single-row radial ball bearing made from 100Cr6 rolling-element steel in the SKF Explorer design. The component primarily accommodates radial forces as well as moderate axial loads in both directions. Thanks to its compact main dimensions – with a 9 mm bore, 26 mm outer diameter and 8 mm width – the unit fits into space-constrained designs. As an SKF product, the bearing complies with the standardised tolerance class P0/PN or ABEC 1 and delivers smooth running characteristics for industrial applications and repair projects.

In which installation situations does the 629-2Z deep groove ball bearing prove its worth?

This deep-groove ball bearing is used wherever compact dimensions need to be combined with smooth running. Typical applications include compact drive units and precision mechanical bearings operating at medium speeds. The design fulfils its purpose even where installation space is limited. Thanks to the integrated sheet steel cage and the permissible temperature range of –20 to +120 degrees Celsius, the bearing meets the requirements of mechanical engineering and equipment manufacturing.

What is the function of the cover plates in the 2Z version?

The designation 2Z stands for cover plates made of profiled sheet steel fitted on both sides. These non-contact gap seals keep coarse dirt particles and dust out of the bearing interior without generating additional friction or heat. This makes the design well-suited to higher speeds. The standard radial bearing clearance contributes to balanced operating clearance under normal operating conditions. Maintenance engineers and designers benefit from this protected design, as it reduces the ingress of solid particles during operation.