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 72 mm x 27 mm SKF 2306 E-2RS1KTN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	205 Series	Cast Iron
17 mm x 40 mm x 16 mm KOYO 2203 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	211 Series	Cast Iron
25 mm x 62 mm x 17 mm ISB 1305 TN9 self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	209 Series	Cast Iron
80 mm x 160 mm x 30 mm ISB 1218 K+H218 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	205 Series	Zinc
Toyana 2218 self aligning ball bearings	20 mm	70 mm	12 mm	0.6 mm
25 mm x 62 mm x 24 mm ISO 2305-2RS self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	209 Series	Cast Iron
55 mm x 110 mm x 28 mm SKF 2212E-2RS1KTN9+H312E self aligning ball bearings	Normal Duty	Grip Tight Ball Bearing	212 Series	Cast Iron
80 mm x 170 mm x 39 mm NSK 1316 K self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	205 Series	Zinc
25 mm x 52 mm x 18 mm KOYO 2205K self aligning ball bearings	Normal Duty	Setscrew Ball Bearing	204 Series	Cast Iron
Toyana 1206K+H206 self aligning ball bearings	Intermediate Duty	Setscrew Ball Bearing	211 Series	Cast Iron
35,000 mm x 80,000 mm x 21,000 mm SNR 1307G15 self aligning ball bearings	Normal Duty	Eccentric Collar Ball Bearing	205 Series	Zinc
20 mm x 50 mm x 20 mm NMB PBR20EFN self aligning ball bearings	207 Series	Non-Expansion	2 Bolt Pillow Block	Triple Lip