What is the structure of the bushed journal bearing?

What is the structure of the bushed journal bearing, is it a rolling bearing or a sliding bearing? Because there are many types of bearings, many people are not very clear.

bushed journal bearing are actually rolling bearings. Its bearing outer ring is generally thicker and has a strong ability to withstand radial forces. It is more commonly used in modern machine tool guide rail pairs, and is often used in groups. It is usually installed under the slide plate to replace the previous sliding guide rail surface.

According to the structure, rolling bearings can also be divided into deep groove ball bearings, self-aligning ball bearings, needle roller bearings, etc. The structure of deep groove ball bearings is relatively simple, and the use is also very convenient. Deep groove ball bearings are mainly used to bear radial loads, and can also bear certain axial loads. Generally used in automobiles, tractors, machine tools, motors, water pumps, agricultural machinery, textile machinery, etc.

The self-aligning ball bearing has two rows of steel balls and two raceways in the inner ring. Because the outer ring raceway of the self-aligning ball bearing is an inner spherical shape, it also has the function of self-aligning, which can automatically compensate for the The coaxiality error caused by bending and shell deformation is generally used in agricultural machinery such as combine harvesters, blowers, paper machines, textile machinery, woodworking machinery, overhead crane wheels and drive shafts.

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