Angular Contact Ball Bearings can withstand both radial and axial loads simultaneously. Can work at higher speeds. The larger the contact angle, the higher the axial load-bearing capacity. High precision and high-speed bearings typically have a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase.

Single row angular contact ball bearings can only withstand axial loads in one direction, and when subjected to radial loads, it will cause additional axial forces. And it can only limit the axial displacement of the shaft or housing in one direction. The contact angle of angular contact ball bearings is 40 degrees, so they can withstand large axial loads. Angular contact ball bearings are non separable designs, with varying heights of shoulders on both sides of the inner and outer rings. In order to improve the load capacity of the bearing, one side of the shoulder will be machined lower, allowing the bearing to fit more steel balls.

Double row angular contact ball bearings can withstand large radial loads, mainly combined radial and axial loads, as well as torque loads, limiting the axial displacement of both sides of the shaft. The tilting ability between the inner and outer rings of double row angular contact ball bearings, which are mainly used to limit the bidirectional axial displacement of the shaft and housing, is limited. The allowable tilting angle depends on the internal clearance, bearing size, internal design, and the forces and moments acting on the bearing. The maximum allowable tilting angle should ensure that no excessive additional stress is generated inside the bearing. If there is a tilt angle between the inner and outer rings of the bearing, it will affect the service life of the bearing, and cause a decrease in the operating accuracy of the bearing and an increase in operating noise. Double row angular contact ball bearings generally use nylon retainers or brass solid retainers. When installing double row angular contact ball bearings, it should be noted that although the bearing can withstand bidirectional axial loads, if there is a gap for installing the ball on one side, care should be taken not to let the main axial load pass through the groove edge on the side with the gap. When using bearings, attention should be paid to ensuring that the raceway on the side without the ball mounting notch bears the main load.

feature

1. Universal matched bearings

Universal combination bearings are specially processed, and when the bearings are installed tightly against each other, any combination can achieve a predetermined internal clearance or preload, as well as an average load distribution, without the need for gaskets or similar devices.

Paired bearings are used when the load carrying capacity of a single bearing is insufficient (using a cross coupling configuration) or when it needs to withstand joint loads or axial loads acting in two directions (using a back-to-back or face-to-face configuration).

2. Basic design of bearings (not suitable for universal assembly), configuration method for individual bearings

The basic design of single row angular contact ball bearings is mainly used in configurations where there is only one bearing at each position. Its width and protrusion are within the normal tolerance range. Therefore, it is not suitable to install two single row angular contact ball bearings closely together.

main purpose

Single row angular contact ball bearings: machine tool spindle, high-frequency motor, gas turbine, centrifugal separator, small car front wheel, differential small gear shaft, booster pump, drilling platform, food machinery, dividing head, welding machine, low-noise cooling tower, electromechanical equipment, painting equipment, machine bed slot plate, arc welding machine

Double row angular contact ball bearings: oil pump, Roots blower, air compressor, various transmissions, fuel injection pump, printing machinery, planetary reducer, extraction equipment, cycloidal reducer, food packaging machinery, welding machine, soldering iron, square box, gravity spray gun, wire stripping machine, half shaft, inspection and analysis equipment, fine chemical machinery

Maintenance Method

1. When the bearing reaches a certain period of operation (or maintenance period), all bearings should be removed;

2. Soak the bearings in diesel or kerosene for cleaning, and if there are technical conditions, it is best to open the sealing cover for cleaning;

3. After cleaning, dry the cleaning oil and inspect the appearance for any damage;

4. Use a wooden rod (preferably a hollow tube) with a diameter of about 150mm and equal inner diameter to the angular contact ball bearing, and fix one end of the bearing;

5. While quickly rotating the bearing by hand, place the other end of the wooden stick (wooden tube) on the ear or audio amplifier microphone to listen for the noise caused by the bearing rotation;

6. After fixing the bearing, move the wooden rod horizontally to check if the bearing is worn or loose;

7. FAG bearings with severe looseness, excessive rotational noise, and serious defects should be eliminated and replaced with the same model;

8. Take a bucket and melt an appropriate amount of lubricating grease (high-quality yellow dry oil) over low heat (do not overheat). Soak the tested bearings in the bucket until no bubbles overflow. Remove the bearing before the lubricating grease cools down, as there is a small amount of residual lubricating grease. After the lubricating grease cools down, remove the angular contact ball bearing, and there is a large amount of residual lubricating grease. Determine the amount of residual lubricating grease as needed.

9. Clean the lubricating grease on the outside of the bearing with a soft cloth or toilet paper and assemble the FAG bearing in its original state onto the pulley. The maintenance work is now complete.