self aligning ball bearings

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.

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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
40 mm x 90 mm x 33 mm ISO 2308 self aligning ball bearings	Medium Duty	Setscrew Ball Bearing	210 Series	Cast Iron
110 mm x 200 mm x 53 mm KOYO 2222-2RS self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	212 Series	Cast Iron
110 mm x 200 mm x 53 mm KOYO 2222 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
Toyana 2311K+H2311 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
Toyana 1309K+H309 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
65 mm x 140 mm x 33 mm NSK 1313 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	205 Series	Zinc
45 mm x 85 mm x 23 mm FBJ 2209 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	204 Series	Zinc
50 mm x 90 mm x 20 mm NACHI 1210 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	205 Series	Zinc
80 mm x 140 mm x 33 mm NKE 2216-K self aligning ball bearings	Medium Duty	Setscrew Ball Bearing	212 Series	Cast Iron
20 mm x 52 mm x 15 mm ISO 1304 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
17 mm x 40 mm x 12 mm NSK 1203 self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	209 Series	Cast Iron
20 mm x 52 mm x 21 mm ISB 2304-2RSTN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Cast Iron