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
30 mm x 80 mm x 31 mm ISB 2307 KTN9+H2307 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
75 mm x 150 mm x 28 mm ISB 1217 K+H217 self aligning ball bearings	Medium Duty	Setscrew Ball Bearing	209 Series	Cast Iron
35 mm x 80 mm x 21 mm FAG 1307-K-TVH-C3 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	214 Series	Cast Iron
65 mm x 160 mm x 37 mm ISB 1315 K+H315 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Stainless Steel
55,000 mm x 120,000 mm x 29,000 mm SNR 1311KG15 self aligning ball bearings	Normal Duty	Grip Tight Ball Bearing	204 Series	Polymer
45 mm x 100 mm x 25 mm ISB 1309 KTN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	207 Series	Cast Iron
20 mm x 47 mm x 18 mm NACHI 2204K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	209 Series	Cast Iron
12 mm x 32 mm x 14 mm ISB 2201 TN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	204 Series	Cast Iron
60 mm x 130 mm x 31 mm NTN 1312S self aligning ball bearings	TELESCOPING	9.0000 in	250	CARBON STEEL
90 mm x 190 mm x 64 mm SKF 2318K self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	206 Series	Zinc
90 mm x 190 mm x 43 mm ISB 1318 K self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	207 Series	Zinc
ISB TSM 17-01 BB-E self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	206 Series	Zinc