5 Types of Ball Bearings

Single row deep groove bearing

Single row deep groove bearings are made by setting the races are offset and in a way that the maximum number of balls are places between them. Then, by using a retainer or cage, the racers are centered and the balls are symmetrically placed.

These are suitable for high load carrying capacity and high running speeds.

Filling notch bearing

Filling notch bearing are made by creating notches in the inner and outer races. And it allows to add more balls to be inserted than in a deep groove ball bearing. These notches do not extend to the bottom of the race way and therefore the balls inserted through the notches must be forced in position. Since this type of bearing contains larger number of balls than a corresponding unnotched one, therefore it has a larger bearing load capacity.

Angular contact bearing

Angular contact bearings are made by setting one side of the outer race cut away to permit the insertion of more balls. So, it can be inserted more balls than in a deep groove bearing but without making a notch cut into both races.

This allows the bearing to carry a relatively large axial load in one direction, moreover it can also carry a relatively large radial load. These bearings are usually used in pairs and the thrust loads may be carried in either direction.

Double row bearing

Double row bearing is made of radial or angular contact between the balls and races. They’re narrow than the single row bearings. The load capacity of double row bearing is slightly less than twice that of a single row bearing.

Self-aligning bearing

Self-aligning bearings are the bearings that allow shaft deflections within 2-3 degrees. Since the normal clearance in a ball bearing is too small to have any appreciable misalignment of the shaft relative to the housing.

Harry Williams
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