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
85 mm x 180 mm x 60 mm SKF 2317 self aligning ball bearings	207 Series	Expansion	2 Bolt Pillow Block	Piston Ring
Toyana 2319K+H2319 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	208 Series	Cast Iron
65 mm x 140 mm x 33 mm NKE 1313 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	209 Series	Cast Iron
45 mm x 85 mm x 19 mm ISO 1209 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	205 Series	Zinc
25 mm x 62 mm x 17 mm KOYO 1305K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	206 Series	Cast Iron
AST 2218 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	215 Series	Cast Iron
70 mm x 150 mm x 51 mm ISO 2314 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	209 Series	Cast Iron
Toyana 1214 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	204 Series	Cast Iron
95 mm x 170 mm x 32 mm FAG 1219-K-M-C3 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	204 Series	Cast Iron
Toyana 2217K+H317 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	204 Series	Zinc
75 mm x 160 mm x 37 mm SKF 1315 K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	210 Series	Cast Iron
17 mm x 47 mm x 19 mm KOYO 2303-2RS self aligning ball bearings	Normal Duty	Grip Tight Ball Bearing	211 Series	Cast Iron