BEARING ITALIA S.P.A

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.

55 mm x 110 mm x 28 mm skf 2212 EKTN9 + H 312 Self-aligning ball bearings: A2 : 193.675 mm; Cap bolt, SAE grade : 5

45 mm x 90 mm x 23 mm skf 2210 EKTN9 + H 310 Self-aligning ball bearings: Grease Speed Rating Open/Shielded n1 : 3800 rpm; Basic Dynamic Radial Load Rating C : 124000 N

17 mm x 47 mm x 14 mm skf 1204 EKTN9 + H 204 Self-aligning ball bearings: D : 110.0000 mm; Basic Dynamic Radial Load Rating : 31200 N

65 mm x 140 mm x 33 mm skf 1313 EKTN9 Self-aligning ball bearings: rs (min) : 1.1 mm; Pu : 1.991 kN

25 mm x 62 mm x 16 mm skf 1206 EKTN9 + H 206 Self-aligning ball bearings: r1,2 min. : 1.1 mm; Preload class A GA : 370 N

95 mm x 170 mm x 43 mm skf 2219 KM Self-aligning ball bearings: K : 5 mm; Calculation factor kr : 0.2

110 mm x 240 mm x 50 mm skf 1322 M Self-aligning ball bearings: Basic Dynamic Radial Load Rating C : 71500 N; Grease Speed Rating Open/Shielded n1 : 5600 rpm

65 mm x 130 mm x 31 mm skf 2215 EKTN9 + H 315 Self-aligning ball bearings: Basic Static Radial Load Rating Co : 116000 N; B : 37.00 mm