Deep Groove Ball Bearings SKF 6211 -2RS1

The SKF 6211-2RS1 deep groove ball bearing features double-sided lip seals for 55 mm shafts, with dimensions of 55 x 100 x 21 mm.

The SKF 6211 -2RS1 single-row deep groove ball bearing is designed for predominantly radial loads as well as moderate axial forces. With a bore of 55 mm, an outer diameter of 100 mm and a width of 21 mm, this rolling bearing meets standard industrial requirements. Both sides are fitted with a sliding seal, which protects the interior from contaminants and retains the lubricant within the bearing. The 100Cr6 material and a robust sheet steel cage ensure dimensional stability at operating temperatures ranging from -20 to +120 degrees Celsius.

What is the 6211-2RS1 deep groove ball bearing suitable for?

This deep-groove ball bearing is primarily used in rotating industrial applications and general shaft mountings where effective protection against dirt and splash water is required. Thanks to the 2RS1 seals on both sides, the component is suitable for operating environments exposed to dust or moisture. As the bearing clearance corresponds to that of a standard radial bearing (CN), the bearing fits into standard designs without any significant temperature differences between the inner and outer rings. Size 6211 is primarily used for medium-duty shaft mountings.

What are the distinctive features of the 2RS1 seal on this bearing?

The designation -2RS1 refers to two contacting sealing discs made of synthetic rubber with sheet metal reinforcement. These sealing lips make contact with the inner ring and mechanically keep out moisture and particles. At the same time, they help to ensure that the grease filling remains inside the bearing. Compared with open bearings, the contact between the lips creates a certain amount of friction, which is why the permissible speeds are slightly lower than those of open designs. For standard industrial applications within a temperature range of -20 to +120 degrees Celsius, this design offers reliable protection.