Deep Groove Ball Bearings SKF 6205 -Z

The SKF 6205-Z deep-groove ball bearing, measuring 25x52x15 mm, features a single-sided sheet metal cover for compact industrial applications.

The single-row deep-groove ball bearing 6205 -Z primarily accommodates radial loads as well as axial loads in both directions. Manufactured from standard 100Cr6 rolling-bearing steel in the SKF Explorer design, the bearing features a robust sheet-steel cage and a standard radial clearance. Thanks to its enhanced dimensional accuracy (P6) and running accuracy (P5), this rolling bearing operates with high precision. The permissible temperature range is from –20 to +150 degrees Celsius.

For which bearing locations is the 6205-Z deep groove ball bearing suitable?

This bearing is suitable for mounting positions where one side needs to be protected from coarse dirt, whilst the other side remains open to allow lubricant circulation. The single-sided sheet metal cover keeps out larger foreign particles without causing friction losses. The single-row rolling bearing accommodates both radial and axial forces.

Designs subject to continuous loads benefit from the Explorer performance class. Thanks to the flangeless cylindrical outer ring, the bearing can be fitted flush with the corresponding housing bores.

What is the function of the single-sided Z-cover plate?

The Z-cover plate forms a non-contact gap seal on one side of the bearing. As a result, unlike with sliding seals, no additional friction torques or thermal losses occur at the sealing lip, which enables higher speeds. The sealed side faces outwards to protect the interior of the bearing from contamination.

The open side allows the bearing to be supplied with lubricant during operation via the housing’s internal lubrication circuit. Before installation, care must be taken to ensure that the cover is correctly aligned with the vulnerable side.