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Four row cylindrical roller bearings

Due to the large number of rollers, four-row cylindrical roller bearings are suitable for very heavy radial loads. The open rib design and roller end design and surface finish are conducive to the formation of the lubricating oil film, resulting in lower friction. The roller logarithmic curve profile reduces the edge stress at the roller/raceway contact, and the logarithmic curve profile is also conducive to bearing misalignment and shaft deflection. The surface treatment of the contact surface between the roller and the raceway is conducive to the formation of a hydrodynamic lubricant film.

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