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What is the difference between angular contact bearings and deep groove ball bearings

Deep groove ball bearings and angular contact ball bearings are representative rolling bearings. They are widely used and can bear radial load and bidirectional axial load. They are suitable for high-speed rotation and occasions requiring low noise and low vibration. They are equipped with steel dust cover. Or sealed bearings with rubber seals are pre-filled with grease, and bearings with a stop ring or flange on the outer ring are easy to locate in the axial direction and install in the shell. The size of the maximum load-bearing is the same as the standard bearing, But there is another filling groove in the inner and outer rings, which increases the number of balls and increases the rated load.

Different types and load directions
Deep groove ball bearings: deep groove ball bearings are the most common type of rolling bearings. Mainly bear radial load, but also can bear radial load and axial load at the same time. When it only bears the radial load, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, it has the performance of an angular contact bearing and can bear a large axial load. The friction coefficient of the deep groove ball bearing is very small and the limit speed is also high.
Angular contact ball bearings: There is a contact angle between the ring and the ball. The standard contact angles are 15/25 and 40 degrees. The larger the contact angle, the greater the axial load capacity. The smaller the contact angle, the more conducive to high-speed rotation. Single row bearings can bear radial load and unidirectional axial load, DB combination, DF combination and double row angular contact ball bearings can bear radial load and bidirectional axial load, DT combination is suitable for large unidirectional axial load, When the rated load of a single bearing is insufficient, ACH type bearings are used at high speeds, which have small ball diameters and many balls, and are mostly used for machine tool spindles. In general, angular contact ball bearings are suitable for high-speed, high-precision rotating occasions.
The difference in structure
Deep groove ball bearings and angular contact ball bearings with the same inner and outer diameter and width dimensions have the same inner ring size and structure, but the outer ring size and structure are different: 1. Deep groove ball bearing outer ring groove Double shoulders on both sides, and angular contact ball bearings are generally single shoulder; 2. The curvature of the outer ring of deep groove ball bearings is different from that of angular contact balls, and the latter is often larger than the former; 3. Deep groove ball bearing outer ring grooves The position is different from the angular contact ball bearing, and the specific value of the non-central position is considered when the angular contact ball bearing is designed and is related to the degree of the contact angle.

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