NTN Double Row Tapered Roller Bearings (Outside Direction)

NTN Double direction angular contact thrust ball bearings are manufactured with the same nominal bore size and outside diameter as corresponding cylindrical roller bearings. However, the outside diameter tolerance of the housing washers, combined with the housing bore diameter and geometric tolerances recommended for super-precision cylindrical roller bearings under light to normal load and rotating .Depending on their design, components of double row tapered roller bearings can also be mounted separately. The individual rings of one bearing must be mounted in the correct order and position. They must also not be mixed with those of another bearing when several bearings.

Double row tapered roller bearings can carry heavy loads and are stiff. They are suitable for the accommodation of combined (radial and axial) loads and can locate a shaft axially in both directions with a given axial clearance or a given preload.Diverging double-row bearings increase the rigidity of the shaft mounting, while converging bearings do not. Other configurations for double-row bearings feature a single outer ring and two inner rings, or two outer rings and a single inner ring. Four-row tapered roller bearings consist of four rows of alternating converging and diverging rollers. Most taper roller bearings are made of alloy steels or low-carbon.