Single row angular contact ball bearings are a special type of bearing with the inner and outer ring raceways being relatively inclined to the axis of the bearing. This design allows the bearings to support radial loads and unidirectional axial loads. They are often used in applications that require support for high-speed rotation and high precision, such as in electric motors, automotive hubs, jet engines, and machine tool spindles.

Features of single row angular contact ball bearings include:

• Loading Capacity: Can support both radial loads and unidirectional axial loads. For situations subject to reverse axial loads, it is common to mount two corresponding bearings in a back-to-back arrangement.
• Design Flexibility: Depending on different load requirements and applications, the contact angle of the bearing (usually marked as 15°, 30°, or 40°) and design can vary to optimize performance.
• High-Speed Performance: Particularly suitable for use under high-speed operating conditions because they can efficiently handle combined loads.
• Precision Classes: Typically offered in different precision classes, including standard and high precision, to suit various industrial applications.
• Maintenance and Installation: While the design of single row angular contact ball bearings allows for a certain degree of self-aligning capability, precise adjustment during installation is still required to ensure optimal performance.

When selecting single row angular contact ball bearings, it is important to consider the specific requirements of the application, including speed, load type, preload requirements, lubrication conditions, and the convenience of installation and maintenance.