Deep groove ball bearing SKF 211-ZNR, Outer diameter: 100 mm | Width: 21 mm | Inner diameter: 55 mm

Ball bearings are essential mechanical components that reduce friction and support various loads in a wide range of industrial applications. Among them, deep groove ball bearings stand out for their versatility, their ability to operate at high speeds, and their low maintenance requirements.

This SKF deep groove ball bearing features fill slots and a sheet steel cage, making it perfectly suited for applications requiring high radial load capacity. The integrated stop ring on the outer ring ensures optimal axial stability. A sheet-steel deflector on one side provides protection against external contaminants while maintaining low internal friction.

Features:
This SKF single-row rigid ball bearing features an integrated stop ring on the outer ring, ensuring reliable axial retention and reducing the risk of misalignment. Filling notches on the rings allow for more balls, thereby increasing the bearing’s capacity to withstand high radial loads. The standard radial clearance ensures smooth operation, while the sheet steel cage provides good resistance to continuous loads. The metal shield on the outer ring helps protect against debris while maintaining efficient heat dissipation.

Maintenance:
The mechanical deflector helps retain some of the lubricant while providing access for periodic inspection and, if necessary, relubrication with a suitable grease. It provides partial protection against medium- to large-sized contaminants. With its stop ring, this bearing minimizes the risk of axial displacement and premature wear. However, it is advisable to regularly check radial clearance, noise, and temperature to detect any abnormalities.

Sealing:
This SKF bearing is equipped with a metal shield on one side, providing partial protection against debris. Although it does not have conventional seals, this design helps limit the ingress of contaminants while preserving the internal lubrication. This configuration is ideal for environments with moderate exposure to contaminants, where heat dissipation remains a priority. However, it is not suitable for extremely dirty environments where complete sealing is required.

Brand Information:
SKF, founded in 1907, is a major player in the field of solutions for rotating equipment. Specializing in bearings, seals, and lubrication systems, the Swedish brand is recognized for its technical expertise and innovations that meet the diverse needs of industrial sectors such as automotive, aerospace, energy, and food processing.

Key Features:
- Integrated stop segment for reliable axial stability;
- Filling notches that allow for more balls to be added to the bearing;
- High radial load capacity, superior to models without notches;
- Partial protection against contaminants and reduced lubrication loss thanks to the deflector;
- Robust design for enhanced reliability.

Applications:
This SKF bearing is ideal for applications requiring high radial load capacity without the need for high speeds. It is commonly used in automotive assemblies, such as wheel hubs, transmissions, and steering systems. It is also found in industrial motors, particularly in belt-driven systems where axial stability is essential. This bearing is well-suited for agricultural machinery, such as tractors and harvesters, which must withstand heavy loads. It is also used in conveyors as well as for rollers and components requiring secure axial positioning and high load capacity.