What are the Characteristics of Double Row Spherical Roller Bearings?

The main advantage of double row spherical roller bearings is that they have large alignment, easy to adjust the deflection of the shaft and bearing seat, large load capacity, can withstand radial and axial loads, especially suitable for shock loads, easy to load and unload. Its main disadvantage is the limit speed is low, the axial guidance accuracy is low, the service life is short. Because with the journal is a loose fit, so in higher speed operation will often appear bearing crawl, burn sticky, wear phenomenon.

Double spherical roller bearings in our country bearing enterprise production, there are still new and old structure coexist phenomenon. The main difference between the old and new structure is: the new structure of spherical roller bearings with symmetrical spherical roller, steel plate stamping cage or solid cage, inner ring with fixed small retaining edge and movable retaining ring or inner ring without fixed retaining edge and movable retaining ring, good self-alignment, large bearing capacity. The old structure of the spherical roller bearings with asymmetric spherical roller, inner circle with fixed small and medium stop edge, roller and raceway friction between the large, small load capacity.

The new structure of double spherical roller bearings is the advanced structure of this type of bearing products, should be actively promoted. The old structure of the double row spherical roller bearing is the national order to eliminate the product, generally should not continue to use.

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