Four-Row Cylindrical Roller Bearings

What Are Four-Row Cylindrical Roller Bearings?

Four-Row Cylindrical Roller Bearings are non-separable bearings that incorporate four rows of cylindrical rollers. They are designed to handle very high radial loads and are primarily used in rolling mill machinery, where load intensity and operating speed are both demanding.

Key Features and Advantages

• Extremely High Radial Load Capacity: The four-row construction distributes heavy loads effectively, making them ideal for intense industrial environments.
• High Rigidity: These bearings offer minimal elastic deformation, ensuring stable shaft alignment under heavy loads.
• Optimized for High Speeds: Special internal designs reduce friction and heat generation, supporting reliable operation at elevated speeds.
• Long Service Life: High-quality materials and precision engineering ensure long-term performance and reduced maintenance requirements.

Typical Applications

• Steel and aluminum rolling mills
• Continuous casting machines
• Wire rod mills
• Heavy-duty processing lines

Design Characteristics

Most four-row cylindrical roller bearings are designed with separable inner rings, which simplifies mounting and dismounting, especially under large shaft diameters. Some types also accommodate limited axial displacement, essential for thermal expansion in mill equipment.

Interchangeable With

Fully interchangeable with comparable models from premium brands such as SKF, FAG, NSK, and Timken, ensuring global compatibility and sourcing flexibility.