Self-aligning ball bearings

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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 which can be caused, for example, by shaft deflection

This type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex. The outer ring has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. Pressed steel cages are usually used. Since the contact angle is small, the axial load capacity is low. The permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees) under normal loads.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NSK 30bd5222dum6 Bearing	110 min	6418	192.000 kN	3 200 min-1
50 mm x 110 mm x 40 mm skf 2310 E-2RS1KTN9 Self-aligning ball bearings	34.925 mm	39.98 mm	S 9x1.3/8	18
55 mm x 100 mm x 21 mm skf 1211 ETN9 Self-aligning ball bearings	23.00 mm	4300 rpm	1.50 mm	65500 N
30 mm x 72 mm x 27 mm skf 2306 E-2RS1TN9 Self-aligning ball bearings	H7	0.5 m/s	25 N/mm²	0 m/s
180 mm x 280 mm x 74 mm skf 13036 Self-aligning ball bearings	9.4	7.81 mm	115.4 mm	1
20 mm x 62 mm x 17 mm skf 1305 EKTN9 + H 305 Self-aligning ball bearings	90.0000 mm	One Seal	43600 N	10000 rpm
60 mm x 120 mm x 31 mm skf 2213 E-2RS1KTN9 + H 313 E Self-aligning ball bearings	0.040 in	76500 N	6.5000 in	63700 N
60 mm x 130 mm x 46 mm skf 2312 M Self-aligning ball bearings	149.225 mm	EPR 18	298.45 mm	23034 CCK/W33
100 mm x 215 mm x 47 mm skf 1320 Self-aligning ball bearings	295.275 mm	39 kg	105 kN	5/8-11 UNC
17 mm x 40 mm x 16 mm skf 2203 E-2RS1TN9 Self-aligning ball bearings	1650 r/min	387.35 mm	3/8 NPT	5
95 mm x 200 mm x 45 mm skf 1319 K Self-aligning ball bearings	388 mm	BC4.10/W33WI	410 mm	10 mm
60 mm x 130 mm x 46 mm skf 2312 K Self-aligning ball bearings	1220 kN	90 mm	Steel/steel, heavy-d	4 mm