248/1800CAF3/W33 Spherical Roller Bearing

The 248/1800CAF3/W33 is an extra-large bore, extra-wide spherical roller bearing engineered for the most demanding heavy-duty and low-speed applications. Part of the 248 series, this bearing is designed to deliver exceptional load capacity, reliable self-alignment, and long-term durability in harsh industrial environments.

Key Features & Specifications

• Superior Load Capacity: The extra-wide design and long rollers provide significantly increased radial and axial load-bearing capacity, along with enhanced resistance to overturning moments, making it ideal for supporting immense weights.
• Robust Self-Alignment: The spherical outer ring raceway allows for automatic alignment, compensating for shaft deflections and initial mounting inaccuracies (typically up to ±1.5°). This ensures even load distribution and prevents edge loading, extending service life.
• Optimized Internal Design (CAF3): Features a machined brass cage (CA) for superior strength and guidance at low-to-moderate speeds. The F3 designation indicates special heat treatment and material processes, resulting in a through-hardened bearing with enhanced toughness and fatigue resistance in severe operating conditions.
• Integrated Lubrication (W33): Equipped with a standard lubrication groove and three oil holes in the outer ring (W33). This design facilitates efficient grease re-lubrication, crucial for maintaining performance and preventing premature failure in large, slow-rotating equipment.
• Extra-Large Bore Size: With a massive 1800mm bore diameter, this bearing is built specifically for giant machinery requiring an ultra-large shaft mounting.

Primary Applications

This bearing is a critical component in mega-scale industrial equipment, including:

• Mining & Cement: Girth gears for massive rotary kilns and dryers, large ball mills & SAG mills.
• Heavy Machinery: Slewing rings for giant port cranes, excavators, and heavy-lift equipment.
• Metallurgy: Backup rolls for wide plate and strip mills, rolling mill tables.
• Pulp & Paper: Dryer drums and other large cylinders.

Advantages for Your Operation

• Maximized Uptime: Engineered for extreme reliability, reducing unplanned downtime.
• Reduced Maintenance: Robust construction and effective lubrication design minimize servicing needs.
• Long Service Life: Superior materials, heat treatment, and alignment capabilities work together to extend bearing life even under severe loads and misalignment.

Disclaimer: For precise installation, load ratings, and speed limitations, always consult the official manufacturer's technical datasheet or contact your bearing supplier. Specifications may vary by manufacturer.