Self-aligning ball bearings features specifications:
 
 Double row self-aligning ball bearings have a sphere raceway in the outer ring
and a double raceway in the inner ring. This feature give the bearings their
self-aligning property, permitting angular misalignment of the shaft relative to
the housing. They are therefore particularly suitable for applications where
misalignment can arise from errors in mounting or from shaft deflection.        

       Double row self-aligning ball bearings are mainly used to carry radial
loads and light axial loads, but cant carry pure axial loads.
      typeBore dimension
      12k seriesd:10~110;   D:30~200;    B:9~38
      22k seriesd:10~110;   D:30~220;    B:14~53
      13k seriesd:10~110;   D:35~240;    B:11~50
      23k seriesd:10~110;    D:35~240;   B:17~80

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