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
15 mm x 35 mm x 11 mm ZEN 1202-2RS self aligning ball bearings	200 mm	295 mm	35 mm	2 mm
55 mm x 120 mm x 29 mm NSK 1311 K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Cast Iron
30 mm x 47 mm x 22 mm ISB GE 30 BBL self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	206 Series	Polymer
150 mm x 270 mm x 54 mm FAG 1230-M self aligning ball bearings	Normal Duty	D-Lock Ball Bearing	206 Series	Polymer
35 mm x 80 mm x 21 mm KOYO 1307 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	212 Series	Cast Iron
41,275 mm x 101,6 mm x 23,8125 mm RHP NMJ1.5/8 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	206 Series	Cast Iron
100 mm x 180 mm x 46 mm ISB 2220 K self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	205 Series	Zinc
40 mm x 90 mm x 23 mm NSK 1308 K self aligning ball bearings	Normal Duty	D-Lock Ball Bearing	206 Series	Polymer
85 mm x 150 mm x 36 mm FAG 2217-K-M-C3 + H317 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	214 Series	Cast Iron
25 mm x 62 mm x 24 mm ISO 2305K+H2305 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	204 Series	Cast Iron
90 mm x 190 mm x 64 mm NTN 2318S self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	207 Series	Cast Iron
15 mm x 35 mm x 11 mm NTN 1202S self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	204 Series	Zinc