Self-aligning ball bearings
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.
- 75 mm x 160 mm x 37 mm skf 1315 Self-aligning ball bearings
- 14000 rpm
- 11200 N
- 80 mm x 170 mm x 39 mm skf 1316 Self-aligning ball bearings
- 12000 rpm
- 42.0000 mm
- 85 mm x 200 mm x 45 mm skf 1319 K + H 319 Self-aligning ball bearings
- 0.6563 in
- 0.4375 in
- 65 mm x 120 mm x 31 mm skf 2213 ETN9 Self-aligning ball bearings
- 24000 r/min
- 15 mm
- 35 mm x 72 mm x 17 mm skf 1207 EKTN9 Self-aligning ball bearings
- 1.6 mm
- 20.640 mm
- 40 mm x 80 mm x 18 mm skf 1208 ETN9 Self-aligning ball bearings
- 3/4 NPT
- SNW 30x5.5/16
- 75 mm x 150 mm x 28 mm skf 1217 K + H 217 Self-aligning ball bearings
- Shield & Seal
- 4500 rpm