KOYO Bearing NU3221

Product description of KOYO Bearing NU3221

KOYO Bearing NU3221, Cylindrical roller bearings Single-row NU,Cylindrical roller bearings have line contact between the rollers and raceway, therefore radial load capability is high, making this bearing superior in regards to its ability to withstand heavy loads and impact loads. Moreover, mounting and removing is easy due to the inner ring and outer ring being separable.

The utility model relates to a bearing, in particular to a single-row cylindrical roller bearing which comprises a single-row outer ring and a single-row inner ring. A plurality of rollers are positioned between the inner ring and the outer ring, retainers are positioned between the rollers, the outer ring is provided with double flanges, and the inner ring is provided with a single flange. One end of the inner ring, which is not provided with a flange, is provided with a flat check ring. Practical application shows that when the single-row cylindrical roller bearing is applied to a sludge pump, the service life of the single-row cylindrical roller bearing is several times longer that an original 62938 bearing. Thus, auxiliary time for replacing the bearing is greatly reduced, cost of spare parts is saved, and production requirements of customers are met.

KOYO Bearing NU3221, Cylindrical roller bearings Single-row NU, Cylindrical roller bearings feature high radial load capacity because the roller and raceway are in linear contact. These bearings are suitable for applications that involve heavy radial and impact loading. They are also appropriate or high-speed applications in that they can be machined very accurately due to their structure.

Having a separable inner ring or outer ring, these bearings can be mounted and dismounted easily.

●The NU and N types exhibit their best performance when used as free side bearings since they adjust to the shale's axial movement, to a certain extent, relative to the housing position.
●The NJ and NF types carry axial load in cone direction, while the NUP and NH types can carry a certain degree of axial load in both directions.
●Type R cylindrical roller bearings feature enhanced load rating compared with standard series, though both have equal dimensions.

This is because type R bearings have afferent internal design. They are identified by supplementary code "R".

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