Single-Row Cylindrical Roller Bearings

What Are Single Row Cylindrical Roller Bearings?

Single row cylindrical roller bearings are designed to handle heavy radial loads with minimal friction. These bearings consist of an inner ring, an outer ring, a single row of cylindrical rollers, and a cage that evenly spaces the rollers for efficient load distribution and smooth rotation.

Design Variants and Configurations

These bearings are available in multiple designs based on the presence or absence of flanges on the inner and/or outer rings. Common configurations include:

NU type: Flanges on the outer ring only – allows axial movement of the shaft in both directions.
NJ type: Flanges on both sides of the outer ring and one side of the inner ring – permits axial location in one direction.
NUP type: Similar to NJ but includes a loose flange ring – supports axial location in both directions.
N type: Flanges on the inner ring only – allows axial movement of the shaft in both directions.

These different types allow for axial displacement compensation, making them ideal for thermal expansion or misalignment in rotating shafts.

Key Features and Benefits

High radial load capacity due to line contact between rollers and raceways.
Low friction and high-speed capability with precision cage guidance.
Multiple flange configurations to suit different application needs.
Available in metric and inch sizes, various clearance classes.

Common Applications

Due to their versatility and load-handling performance, single row cylindrical roller bearings are used in:

Gearboxes and transmission systems
Electric motors and generators
Pumps and compressors
Machine tool spindles
Industrial processing equipment

Interchangeability

Corebearing’s Single Row Cylindrical Roller Bearings are fully interchangeable with bearings from major manufacturers such as SKF, ensuring easy replacement and compatibility in existing systems.

Conclusion

Whether you’re designing new equipment or replacing worn components, Single Row Cylindrical Roller Bearings offer the load capacity, flexibility, and reliability required for modern industrial applications. Choosing the correct design variant ensures optimal performance and longer bearing life, even in demanding environments.