SKF HRA+ SPHR ROLLER BRG 21307 CC

Self-aligning roller bearings play a key role in the proper functioning of equipment subjected to high mechanical loads. Their robust design ensures reliable and continuous performance, even under unstable or demanding operating conditions.

This SKF self-aligning roller bearing withstands high loads (radial and axial) while compensating for misalignment. Its optimized design ensures a long service life and stable operation, even under heavy loads.

Features:
This spherical roller bearing consists of two symmetrical rows of rollers, allowing it to simultaneously handle radial loads and axial forces in both directions. Thanks to its cylindrical bore, it can be easily mounted on a machined shaft without additional accessories. Its deep-drawn steel sheet cage ensures uniform load distribution and good mechanical stability, even at high speeds. Its open, seal-less design minimizes rolling resistance while facilitating heat dissipation, thereby optimizing service life in high-speed systems. The standard radial clearance ensures a smooth response to load variations while controlling deformation.

Maintenance:
This roller bearing requires manual lubrication appropriate for the operating conditions. The absence of a built-in relubrication system means that the grease or oil level must be checked regularly. It is essential to perform maintenance in a clean environment to prevent contamination. Periodic checks of operating conditions are recommended: noise level, vibration, and temperature. At high temperatures, the choice of lubricant becomes critical to preserving the bearing.

Sealing:
This self-aligning ball bearing has an open design with no seals. This configuration helps reduce internal friction, allowing for high rotational speeds without excessive energy consumption. However, it makes the bearing more susceptible to external contaminants such as dust, moisture, or solid particles. It is therefore recommended to install it in clean environments or to provide external protection solutions, such as deflectors or sealing covers.

Brand Information:
SKF is a recognized global leader in the field of bearings and mechatronics. Founded in 1907 in Sweden, the brand has established itself through constant innovation and technical expertise. With a presence in more than 130 countries, SKF develops reliable and sustainable solutions for industry, mobility, and energy. The company invests heavily in research to improve the performance and sustainability of its products.

Key Benefits:
- Compensates for misalignment and shaft deflection without generating excessive heat.
- Withstands high radial and axial loads, even when combined.
- Cost-effective cylindrical bore for easy installation.
- Low rolling resistance for improved efficiency.
- Robust design for extended use in industrial environments.

Applications:
This spherical roller bearing is particularly well-suited for demanding industrial environments, such as mechanical transmission systems, material handling equipment, or production lines in the paper industry. It is also used in machinery in the metallurgy and textile industries. Its ability to accommodate misalignment and withstand heavy loads makes it ideal for fixed mountings, even in the presence of vibrations or speed variations.