NTN DRIVESHAFT ANDERlu, INC.

SKF hmsa10 Bearing

 

Self Aligning Ball Bearings

Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are available open or sealed. The bearings are insensitive to angular misalignment of the shaft relative to the housing (fig. 1), which can be caused, for example, by shaft deflection.

In a self-aligning bearing, the inner ring has two raceways and the outer ring has a single spherical raceway with its center of curvature coincident with the bearing axis. This allows the axis of the inner ring, balls and cage to deflect around the bearing center to automatically correct misalignment caused by housing and shaft machining or installation error.

A self-aligning bearing is recommended when the alignment of the shaft and housing is difficult or when the shaft may bend during operation. Brda notes that similar to deep groove ball bearings, most self-aligning ball are for general use.

45 mm x 85 mm x 23 mm  ISO 2209-2RS self aligning ball bearings
45 mm x 85 mm x 23 mm ISO 2209-2RS self aligning ball bearings
Cast Iron
2-7/32 in
50 mm x 110 mm x 40 mm  ISB 2310 self aligning ball bearings
50 mm x 110 mm x 40 mm ISB 2310 self aligning ball bearings
Cast Iron
2-7/32 in
60 mm x 130 mm x 46 mm  SIGMA 2312 self aligning ball bearings
60 mm x 130 mm x 46 mm SIGMA 2312 self aligning ball bearings
15,875 mm
15,875
Toyana 2307-2RS self aligning ball bearings
Toyana 2307-2RS self aligning ball bearings
4.9375 in
19.7030 in
60 mm x 130 mm x 46 mm  ISB 2312 self aligning ball bearings
60 mm x 130 mm x 46 mm ISB 2312 self aligning ball bearings
Cast Iron
2-7/32 in
35 mm x 80 mm x 31 mm  ISB 2307 TN9 self aligning ball bearings
35 mm x 80 mm x 31 mm ISB 2307 TN9 self aligning ball bearings
Commercial
.5620 in
30 mm x 62 mm x 20 mm  ISB 2206-2RSTN9 self aligning ball bearings
30 mm x 62 mm x 20 mm ISB 2206-2RSTN9 self aligning ball bearings
Cast Iron
2-7/32 in
65 mm x 140 mm x 33 mm  KOYO 1313 self aligning ball bearings
65 mm x 140 mm x 33 mm KOYO 1313 self aligning ball bearings
120x215x40
40
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