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
70 mm x 150 mm x 35 mm NKE 1314 self aligning ball bearings	Medium Duty	Setscrew Ball Bearing	210 Series	Cast Iron
80 mm x 140 mm x 26 mm ISB 1216 K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Cast Iron
30 mm x 62 mm x 20 mm FAG 2206-K-TVH-C3 self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	212 Series	Cast Iron
55 mm x 120 mm x 29 mm ISO 1311K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	208 Series	Cast Iron
Toyana 1318K self aligning ball bearings	315 Series	Non-Expansion	4 Bolt Pillow Block	Piston Ring
75 mm x 160 mm x 55 mm KOYO 2315 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	206 Series	Zinc
75 mm x 160 mm x 37 mm NACHI 1315 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
40 mm x 80 mm x 18 mm SKF 1208EKTN9 self aligning ball bearings	Normal Duty	D-Lock Ball Bearing	212 Series	Cast Iron
70 mm x 170 mm x 58 mm SKF 2316 K + H 2316 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	203 Series	Cast Iron
AST 2204 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Cast Iron
90 mm x 160 mm x 40 mm NTN 2218SK self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	207 Series	Zinc
30 mm x 62 mm x 20 mm SKF 2206E-2RS1TN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	206 Series	Polymer