SKF 21307 CC/W64 SRB SOLID OIL

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.

Self-aligning design, two rows of symmetrical rollers, Solid Oil lifetime lubrication, stamped steel cage: this SKF spherical roller bearing offers robustness, precision, and reliability. It compensates for misalignment, withstands high loads, and is highly resistant to moisture. A high-performance, maintenance-free solution designed for heavy-duty applications.

Features:
This roller bearing features an ingenious design: two symmetrical rows of rollers held in place by lightweight deep-drawn steel cages. They effectively distribute loads within the bearing, ensuring optimal stability during operation. Its more cost-effective cylindrical bore allows for quick mounting on a shaft. The standard internal radial clearance ensures stable mechanical response, even at high speeds. The “CC” design—with no shoulder on the inner ring and a floating guide ring—promotes excellent force distribution, extending the bearing’s service life.

Maintenance:
No maintenance is required. This bearing features a lifetime lubrication system thanks to Solid Oil technology. This oil-saturated polymer gradually releases lubricant during operation while preventing the ingress of contaminants. Therefore, no regular greasing or lubricant checks are required. However, it is recommended to install the bearing in a clean environment to prevent the introduction of abrasive particles that could interfere with the contact between the oil and the rolling elements. Adherence to the operating temperature range is essential to ensure performance: -50 °C to 85 °C continuously, 95 °C intermittently.

Sealing:
This is an open-type bearing with no mechanical seals. Sealing is provided by the Solid Oil lubricant, which fills the bearing’s internal space. This system forms an effective barrier against solid and liquid contaminants. It offers excellent resistance to washing, even under high pressure. Unlike conventional bearings, it remains operational in humid environments or those exposed to frequent splashes, without losing lubricant. The absence of seals reduces internal friction and allows for high rotational speeds with optimized efficiency.

Brand Information:
SKF is a leading global provider of bearing and rotating system solutions. Founded in 1907 in Sweden, the company holds thousands of active patents and operates in more than 130 countries. SKF places innovation, reliability, and performance at the heart of its mission, serving the most critical industrial sectors: energy, transportation, food processing, and paper manufacturing.

Key Benefits:
- Active compensation for misalignment thanks to its self-aligning design.
- Maintenance-free, lifetime lubrication with Solid Oil technology.
- High resistance to humid environments and washing.
- Design optimized for high radial and axial loads.
- Reduced friction and improved energy efficiency.

Applications:
This spherical roller bearing integrates seamlessly into mechanisms subjected to significant mechanical stresses. It is commonly used in industrial transmissions, textile machinery, food processing equipment, and marine installations. Thanks to its resistance to moisture and contamination, it is also suitable for systems requiring frequent cleaning: agricultural machinery, conveyors, gearboxes, turbines, etc.