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Cylindrical roller bearings are a type of rolling-element bearing that uses cylindrical rollers to maintain the separation between the moving parts of the bearing. The design of cylindrical roller bearings includes an inner ring, outer ring, rollers, and a cage to retain and guide the rollers. Compared to other types of roller bearings (such as ball bearings or tapered roller bearings), cylindrical roller bearings offer higher load-carrying capacity, making them suitable for high-load and high-speed applications.
In cylindrical roller bearings, the contact between the rollers and the inner and outer rings is linear, unlike ball bearings, which have point contact. This design allows cylindrical roller bearings to distribute the load more evenly, increasing their load-carrying capacity and operational stability. Cylindrical roller bearings come in various configurations, such as single-row, double-row, and multi-row types, to meet different operational requirements.
High Load-Capacity: The line contact area between the rollers and the raceways is larger than that of ball bearings, allowing cylindrical roller bearings to carry higher loads.
Suitable for High-Speed Applications: These bearings are suitable for high-speed rotation because their roller-to-raceway friction is lower, helping to maintain a lower temperature rise.
Durability and Wear Resistance: Cylindrical roller bearings have less wear due to the rolling contact, resulting in a longer service life.
High Rigidity: Cylindrical roller bearings maintain high rigidity under heavy axial loads, minimizing deformation.
Model | Inner Diameter (mm) | Outer Diameter (mm) | Width (mm) | Dynamic Load (kN) | Static Load (kN) | Max Speed (r/min) | Weight (kg) |
30 | 55 | 13 | 14.5 | 9.5 | 12,000 | 0.25 | |
NJ 205 | 25 | 52 | 15 | 18.0 | 13.0 | 12,000 | 0.32 |
N 2207 | 35 | 72 | 17 | 23.0 | 17.5 | 10,000 | 0.65 |
NU 310 | 50 | 110 | 27 | 58.5 | 40.5 | 9,000 | 1.35 |
NJ 320 | 60 | 130 | 31 | 75.0 | 55.0 | 8,500 | 1.95 |
N 422 | 110 | 250 | 58 | 220.0 | 160.0 | 6,000 | 14.8 |
