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NNN thrust ball bearings include single direction thrust ball bearings and double direction thrust ball bearings. Single direction thrust ball bearings can carry axial load only in one direction, while double direction thrust ball bearings can carry in two directions. However, both the two types of thrust ball bearings cannot carry radial load. Thrust ball bearings should be preloaded in axial direction before operation. Thrust ball bearings mainly apply to automotive steering devices, machine tool spindles, and rubber and plastic machineries, etc.NNN mainly produces single direction thrust ball bearings. NNN also produces double direction thrust ball bearings and double direction angular contact thrust ball bearings.
