1. Types of Ball Bearings
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2. Single-Row Ball Bearing
This is similar to the ballrace previously described, but it has a groove with a circlip in its outer race. The circlip acts as a retainer to locate the bearing in its housing.
Some ball bearings are designed with deep grooves. A deep groove on one side
of the outer race and on the opposite side of the inner race enables the bearing
to accept thrust loads in one direction.
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3. Double-Row Ball Bearing
This has two rows of balls to enable it to carry heavy radial loads. It will also accept light thrust loads in either direction.
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4. Thrust Bearings
A ball bearing of this type will accept heavy thrust loads, but cannot accept any radial load.
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5. Cup and Cone Ball Bearing
This has an inner cone and an outer cup, with steel balls in a cage between them. The three parts of the bearing are separate.
These
bearings must be used in pairs and they have to be adjusted when they are
installed. A pair of bearings will accept both radial and thrust loads. Tapered
roller bearings can carry a greater load and so are generally used instead of cupand-
cone ball bearings.
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