What are the differences between deep groove ball bearings and angular contact ball bearings?

Deep groove ball bearings and angular contact ball bearings are relatively representative roller bearings. There are many similarities between the two. What is the difference between the two? In fact, in terms of structure, performance and use, deep groove ball bearings and angular contact ball bearings are very different. Let Langche Bearing share it.

1. The outer ring channel structure is different

Deep groove ball bearings and angular contact ball bearings with the same inner and outer diameters and widths have the same inner ring size and structure, while the outer ring size and structure are different.

Deep groove ball bearing structure

Deep groove ball bearings have double shoulders on both sides of the outer ring channel. The curvature of the outer ring channel is different from that of the angular contact ball. Generally, the curvature of the outer ring channel of the deep groove ball bearing is relatively small. The position of the outer ring channel of the deep groove ball bearing Different from the angular contact ball bearing, the specific value of the non-center position is considered in the design of the angular contact ball bearing, which is related to the degree of the contact angle.

Angular contact ball bearing structure

The outer ring channel of angular contact ball bearings is generally a single shoulder, and the curvature of the outer ring channel is generally larger than that of deep groove ball bearings. The position of the outer ring channel of angular contact ball bearings is different from that of deep groove ball bearings. It is generally the central location, depending on the situation.

2. Different performance (load direction)

Deep groove ball bearings

Deep groove ball bearings are the most common type of rolling bearing. It mainly bears radial load, and can also bear radial load and axial load at the same time. When it is only subjected to 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 ferrule and the ball. The standard contact angle is 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. 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 and rated load of a single bearing In the case of insufficient, high-speed ACH type bearings, with small ball diameter and large number of balls, are mostly used for machine tool spindles. In general, angular contact ball bearings are suitable for high-speed, high-precision rotation applications.

3. Different uses

Deep groove ball bearing application

Deep groove ball bearings mainly bear radial loads, and can also bear radial loads and axial loads at the same time, so they can be used in gearboxes, instruments, motors, household appliances, gas turbines, transportation vehicles, agricultural machinery, construction machinery, engineering Machinery, roller skates, yoyos, etc.

Angular contact ball bearing application

(1) Single row angular contact ball bearing application. Machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, indexing head, repair welding machine, low noise cooling tower, Electromechanical equipment, painting equipment, machine tool slot plate, arc welding machine.

(2) Double row angular contact ball bearing application. Oil pumps, Roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery, planetary reducers, extraction equipment, cycloid reducers, food packaging machinery, electric welding machines, electric soldering irons, square boxes, gravity spray guns, Stripping machine, half shaft, inspection and analysis equipment, fine chemical machinery.

It can be seen that there are still some differences between deep groove ball bearings and angular contact ball bearings, and everyone should pay attention to the distinction.