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The NJ313-C4 is a cylindrical roller bearing with 65mm bore diameter, 140mm outside diameter, and 33mm width. This single-row bearing features a separable design with an outer ring flanges and inner ring without flanges, allowing for axial displacement and accommodating thermal expansion in the shaft assembly. The C4 radial clearance specification provides greater internal clearance than standard, suitable for applications with thermal growth or interference fits.
Cylindrical roller bearings are widely used in electric motors, gearboxes, machine tool spindles, pumps, and industrial transmissions where high radial load capacity and moderate to high speeds are required. The NJ design provides moderate axial guidance in one direction while permitting shaft float, making it ideal for applications requiring axial displacement capability or where housing and shaft thermal expansion must be accommodated.
