Angular Contact Ball Bearing
The contact angle is defined as the angle between the line joining the point of contact between the raceway and ball at the radial plane.
Single-row deep groove ball bearings are the most common type of rolling bearing. The raceway grooves in the inner and outer rings form a circular arc cross-section with a slightly larger radius than that of the rolling balls.
In addition to open varieties, these bearings can have steel shields or come pre-lubricated with grease maintained by rubber seals installed on one or both sides. Snap rings are sometimes used on the outside diameter of the outer ring.
Cages are generally made of pressed steel, though large bearings and bearings designed for high-speeds may use machined brass cages.
