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Structure characteristic

Double row cylindrical roller bearing adopt to main bearing of machine for high stiffiiess requirement, on the work side of main bearing apply double cylindrical roller bearing ,fbr easy to adjust and make the radial clearance after install, it is normally used by tapered bore bearing.

There are two series ZWZ precision double cylindrical roller bearing mainly: 30 (NN、NNU) series and 49(NN、 NNU) series. NNU49 series have the compact dimension, it is the better chosen When the space is limited; NN30series achieved the balance between speed and high stiffiiess, it is one of the bearing series in common use,special for the back side supporting to the main shaft.

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