Angular Contact Ball Bearings are designed with offset raceways between the inner and outer rings which creates a specific contact angle under load. Due to this configuration, these bearings are well suited to carry combined axial and radial loading.
Single row bearings can carry axial loading in only one direction and are almost always sold in pairs or adjusted against another bearing.
Angular Contact Ball Bearings have one shoulder removed to allow for a greater compliment of balls than standard Deep Groove Ball Bearings. These bearings are good choices for high speed applications and can be produced to an ABEC 5 precision class.