What Is a Cylindrical Roller Bearing?
A cylindrical roller bearing uses straight cylindrical rollers as rolling elements, providing the highest radial load capacity of any single-row bearing type for its size. The rollers make pure line contact with the raceways, distributing loads very efficiently.
Key Advantages
Superior radial load capacity, high-speed capability (rivalling ball bearings in some designs), and the ability to accommodate axial shaft displacement in NU and N configurations -- making them the preferred choice for electric motor bearings, turbo-compressors, and gearbox shafts.
Applications
Electric motors, gas compressors, rolling mills, large pumps, and wind turbines. Our Oil & Gas Case Study in Oman used INA/FAG cylindrical roller bearings in centrifugal compressors, achieving 3.1x MTBF improvement.
Frequently Asked Questions
What does NU, NJ, and N mean in cylindrical roller bearing designations?
These prefixes indicate the ring configuration: NU has two flanges on the outer ring only (allows free axial movement of inner ring). NJ has two flanges on the outer ring plus one on the inner ring (locates shaft in one axial direction). N has two flanges on the inner ring only. NUP has two outer flanges plus a loose flange on the inner ring.