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
60 mm x 130 mm x 31 mm ISB 1312 KTN9 self aligning ball bearings	Medium Duty	Setscrew Ball Bearing	207 Series	Cast Iron
85 mm x 180 mm x 41 mm NKE 1317-K+H317 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Cast Iron
35,000 mm x 80,000 mm x 21,000 mm SNR 1307KG15 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	206 Series	Zinc
60 mm x 130 mm x 31 mm SKF 1312 ETN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	203 Series	Zinc
20,000 mm x 52,000 mm x 15,000 mm SNR 1304G15 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	207 Series	Zinc
17 mm x 40 mm x 12 mm NKE 1203 self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	204 Series	Cast Iron
40 mm x 110 mm x 33 mm ISO 1408 self aligning ball bearings	615 Series	Expansion	4 Bolt Pillow Block	Triple Lip
100 mm x 215 mm x 47 mm KOYO 1320K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	208 Series	Cast Iron
Toyana 1308K self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	209 Series	Cast Iron
65 mm x 140 mm x 48 mm NTN 2313SK self aligning ball bearings	Normal Duty	D-Lock Ball Bearing	205 Series	Cast Iron
6 mm x 19 mm x 6 mm KOYO 126 self aligning ball bearings	CENTER PULL	42.0000 in	515	CARBON STEEL
85 mm x 150 mm x 28 mm NTN 1217SK self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	207 Series	Zinc