SKF single row angular contact ball bearings can accommodate axial loads in one direction only.
This type of bearing is typically adjusted against a second bearing.
Their bearing rings have an upper and a lower shoulder and are non-separable.
The SKF standard assortment of single row angular contact ball bearings includes:
bearings in the 72 B(E) and 73 B(E) series with 40° contact angle
some sizes in the 70 B series
in series 72 B(E) (15 ≤ d ≤ 55 mm)
in series 73 B(E) (12 ≤ d ≤ 50 mm)
bearings in the 72 AC series with 25° contact angle (15 ≤ d ≤ 70 mm)
bearings in the 73 AC series with 25° contact angle (17 ≤ d ≤ 70 mm)
some large size bearings with a flanged outer ring
SKF inch bearings (ALS and AMS series)