
NU 2268 MA
weight:221 kg
Single row cylindrical roller bearing
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Products Description
| Bore diameter | 340 mm |
| Outside diameter | 620 mm |
| Width | 165 mm |
| Basic dynamic load rating | 2 640 kN |
| Basic static load rating | 4 500 kN |
| Reference speed | 1 000 r/min |
| Limiting speed | 1 500 r/min |
| Product net weight | 221 kg |

Product Related
Engineered to support immense radial forces, the NU 2268 MA stands as a critical component for large-scale rotating equipment. Its internal geometry is specifically purposed for scenarios where thermal growth of a shaft is a significant factor. As a floating bearing, it masterfully allows for axial shaft expansion and contraction without inducing internal stress, ensuring the machinery operates smoothly and efficiently. The line contact inherent in its cylindrical roller design provides a high degree of radial stiffness, making it ideal for applications demanding precision and stability under heavy, perpendicular loads, such as those found in the pulp and paper industry or large electric motors.
The superior reliability of the NU 2268 MA is further cemented by its "MA" designated construction, featuring a robust, machined brass cage centered by the outer ring. This heavy-duty cage construction is essential for maintaining roller separation and stability in high-vibration and high-acceleration environments, directly contributing to a longer and more predictable service life. A significant practical benefit is its separable design; the ability to mount the inner ring separately from the outer ring and roller assembly simplifies the installation and removal process, a crucial advantage when dealing with components of this considerable size. This feature facilitates easier maintenance checks and streamlines the assembly of complex industrial systems.

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