Deep Groove Ball Bearings SKF 6211 -2Z

The SKF 6211-2Z deep-groove ball bearing, with dimensions of 55 × 100 × 21 mm and sheet metal end shields on both sides, provides protection against coarse foreign particles inside the bearing.

The 6211-2Z deep groove ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6) in the SKF Explorer design. The design primarily accommodates radial forces, guides shafts precisely and, at the same time, withstands moderate axial forces in both directions. Fitted with a sheet steel cage and standard radial clearance, this bearing is suitable for standard operating conditions at temperatures ranging from –20 to +120 degrees Celsius.

What loads and operating conditions can the 6211-2Z deep groove ball bearing withstand?

This design is particularly suitable for rotating applications with predominantly radial loads and higher speeds. As the rolling elements are guided deep within the raceways of the inner and outer rings, the component operates with low noise and vibration. The cylindrical outer ring, which has no flange or groove, allows for straightforward installation in suitably designed bearing housings.

What is the function of the cover plates in the 6211-2Z variant?

The suffix 2Z refers to cover plates made of profiled sheet steel fitted on both sides. These gap seals shield the interior against coarse dirt and dust without coming into contact with the inner ring. This prevents any additional frictional resistance, which keeps the operating temperature low. Tolerance class P0 (ABEC 1) ensures that fits on shafts with a diameter of 55 mm remain dimensionally accurate.