Deep Groove Ball Bearings SKF 6210 -2Z

The SKF 6210-2Z deep-groove ball bearing (50x90x20 mm) features cover plates on both sides for applications requiring protection against dirt at normal operating temperatures.

The 6210-2Z deep groove ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6) in the SKF Explorer design. With a 50 mm bore, 90 mm outside diameter and 20 mm width, this bearing primarily accommodates radial loads as well as moderate axial forces. The sheet metal end shields on both sides protect the interior from coarse dirt particles. Together with the sheet steel cage and the standard radial clearance, the assembly operates within a temperature range of -20 to +120 degrees Celsius.

Under what operating conditions does the 6210-2Z deep-groove ball bearing operate?

Designs featuring rotating shafts benefit from this design, provided that predominantly radial forces are acting and misalignment remains negligible. As the cover plates operate without contact, the friction torque remains low. This is advantageous for applications involving higher speeds where protection against solid foreign particles is also required. The cylindrical outer ring without a groove allows for installation in standardised housing bores.

What features do the non-contact 2Z cover discs offer?

The designation -2Z denotes cover plates made of profiled sheet steel fitted on both sides. Unlike abiding seals, these gap seals do not generate any additional frictional resistance, ensuring that the operating temperature remains moderate. Solid particles and coarse dust are retained, whilst the lubricant remains within the bearing chamber. For environments with splashing water or liquids, abiding seals are preferable. The standard radial bearing clearance requires suitable housing and shaft fits during operation.