NU 317 ECM

The NU 317 ECM single row cylindrical roller bearing is expertly engineered for applications demanding very high radial load capacity and high rotational speeds. This bearing features the "NU" design, characterized by two integral flanges on the outer ring and no flanges on the inner ring. This configuration is critical as it allows the inner ring to be separated in both directions, enabling the bearing to accommodate axial displacement of the shaft relative to the housing. The robust, machined brass cage, indicated by the "M" suffix, ensures precise roller guidance and optimal performance under dynamic loads and rapid accelerations, contributing to a long service life and reliable operation.

With principal dimensions of 85 mm bore diameter (d), 180 mm outside diameter (D), and 41 mm width (B), the NU 317 ECM is a highly versatile component. The "EC" designation signifies an optimized internal geometry, which includes enhanced roller-end/flange contact surfaces. This design improvement promotes better lubricant film formation, resulting in lower friction and enhanced operational efficiency, even supporting a certain degree of axial load. Its separable design makes mounting and dismounting straightforward, simplifying maintenance and inspection procedures for industrial gearboxes, large electric motors, and general heavy-duty machinery where reliable rotational support is non-negotiable.

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