Cylindrical roller bearings
Cylindrical roller bearings
Products Description
Cylindrical roller bearings are well-suited for applications involving heavy radial loads and strong impact forces. With line contact between the rollers and raceways, these bearings are capable of handling substantial loads efficiently. One of their key structural advantages is the separability of the inner and outer rings, which simplifies mounting and disassembly.
These bearings are manufactured in several standard design series, such as N, NU, NN, NNU, NJ, NF, NUP, and NH. Depending on the load requirements and installation conditions, cylindrical roller bearings are available in single-row, double-row, and four-row configurations.
Single Row Cylindrical Roller Bearing
Single row cylindrical roller bearings are known for their excellent rigidity, large radial load carrying capacity and high-speed operation adaptability. Its diverse designs include a variety of mainstream models, among which the N, NJ, NU and NUP series have become the first choice for industrial applications due to their unique rib structure differences.
| Model | Edge layout | Axial positioning capability | Features |
| NU Type | the outer ring consists of two rigid ribs, while the inner ring has no ribs | No axial positioning is provided | Suitable for floating bearing positions, allowing the shaft to expand and contract freely |
| NUP Type | two rigid ribs on either side and one loose rib washer on the inner ring | locate the shaft in both directions | Fixed axis bidirectional displacement to achieve precise positioning |
Double Row Cylindrical Roller Bearing
· Thanks to Double-row cylindrical roller bearings exceptional load-carrying capacity and structural stiffness, double-row cylindrical roller bearings are an excellent choice for handling heavy radial loads.
· Double-row cylindrical roller bearings design allows for easy interchangeability, which simplifies installation, removal, and routine maintenance or inspection processes.
· Double-row cylindrical roller bearings are commonly found in demanding applications such as rolling mills, gearboxes, crop shears, and precision machine tools, where both durability and precision are critical.
Four Row Cylindrical Roller Bearing
· With a high number of rolling elements, four-row cylindrical roller bearings are specifically built to handle extremely heavy radial loads in demanding industrial environments.
· These bearings are engineered to carry radial loads only and do not support axial loads on their own. · To manage axial forces, they are typically used in combination with other types of bearings—such as deep groove ball bearings, angular contact ball bearings, or tapered roller bearings (either radial or thrust types).
· Due to their robust construction and load-bearing capability, four-row cylindrical roller bearings are mainly utilized in heavy-duty applications, including rolling mill rolls, calenders, and roller press systems.
Applications of Cylindrical Roller Bearings
Due to their precise engineering and robust design, cylindrical roller bearings are ideal for applications that demand high-speed performance and the ability to withstand heavy loads. They are widely used across industries such as steel manufacturing, power generation, automotive production, and other heavy industrial sectors.
In particular, four-row cylindrical roller bearings are frequently employed in rolling mill stands, calendering machines, and roller press equipment, where high radial load capacity and operational stability are essential.
TP cylindrical roller bearings are available in standard and customized dimensions, and we also provide OEM/ODM solutions based on specific technical drawings or usage requirements.
