self aligning ball bearings

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.However, depending on the surrounding structure, such an angle may not be possible.

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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
15,000 mm x 42,000 mm x 17,000 mm SNR 2302G15 self aligning ball bearings	280 mm	460 mm	180 mm	5 mm
Toyana 1314 self aligning ball bearings	120 mm	215 mm	58 mm	2.1 mm
80 mm x 170 mm x 39 mm FAG 1316-M self aligning ball bearings	440 mm	720 mm	226 mm	6 mm
ISO 11304 self aligning ball bearings	160 mm	225 mm	222 mm	163 mm
95 mm x 170 mm x 43 mm NKE 2219-K+H319 self aligning ball bearings	80 mm	170 mm	39 mm	2.1 mm
ISB TSF 18 BB self aligning ball bearings	1120 mm	1540 mm	525 mm	335 mm
40 mm x 80 mm x 23 mm FAG 2208-2RS-TVH self aligning ball bearings	100 mm	150 mm	39 mm	32.5 mm
35 mm x 72 mm x 52 mm KOYO 11207 self aligning ball bearings	360 mm	600 mm	243 mm	5 mm
80 mm x 170 mm x 39 mm KOYO 1316 self aligning ball bearings	1020 mm	1280 mm	352 mm	218 mm
25 mm x 62 mm x 24 mm NACHI 2305 self aligning ball bearings	65.000 mm	140.0000 mm	58.70 mm	2.00 mm
14 mm x 36 mm x 14 mm NMB PBR14FN self aligning ball bearings	1060.355 mm	1400 mm	490 mm	335 mm
55 mm x 120 mm x 43 mm NKE 2311-K self aligning ball bearings	530 mm	780 mm	185 mm	6 mm