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Angular contact ball bearings

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Angular contact ball bearings

Single-row angular contact ball bearings can only bear axial loads in one direction, and they will cause additional axial forces when bearing radial loads. And can only limit the axial displacement of the shaft or housing in one direction. Angular contact ball bearings have a contact angle of 40 degrees, so they can withstand large axial loads. Angular contact ball bearings are non-separable design, with shoulders on both sides of the inner and outer rings varying in height. In order to increase the load capacity of the bearing, the shoulder on one side will be processed lower to allow the bearing to fit more steel balls.

Double-row angular contact ball bearings can withstand large radial and axial combined radial and axial loads and moment loads, limiting axial displacement on both sides of the shaft. Mainly used to limit the axial displacement of the shaft and the housing in the two-way angular contact ball bearings. The tiltability between the inner and outer rings is limited. The allowable tilt angle depends on the internal clearance of the bearing, the size of the bearing, the internal design, and the The force and moment on the bearing, and the maximum allowable tilt angle should ensure that no excessive additional stress is generated in the bearing. If there is an inclination angle between the inner and outer rings of the bearing, it will affect the life of the bearing, and at the same time, the accuracy of the bearing will decrease, and the operating noise will increase. Double row angular contact ball bearings generally use nylon cages or brass solid cages. When installing double row angular contact ball bearings, care should be taken. Although the bearing can withstand bidirectional axial loads, if there is a ball gap on one side, care should be taken not to let the main axial load pass through the groove side of the gap. When the bearing is used, care should be taken to make the raceway on the side without the ball notch bear the main load.


Paired double ball bearings

If it is installed in pairs, the outer rings of a pair of bearings are opposite, that is, the wide end face is opposite to the wide end face, and the narrow end face is opposite to the narrow end face. This prevents additional axial forces and limits the shaft or housing to axial clearance in both directions.

Because the inner and outer rings of the raceway can be relatively displaced on the horizontal axis, it can bear both radial and axial loads-combined load (single row angular contact ball bearings can only bear axial loads in one direction, so they are generally (Installed in pairs).

The material of the cage includes brass, synthetic resin, etc., which are differentiated according to the bearing type and use conditions.

Angular contact ball bearings are mostly made by foreign bearing manufacturers, and they are mostly used in imported equipment such as angular contact ball bearings 3204RS, etc.

I think back-to-back and back-to-face contact is easier. The narrow side is outside, the wide side is inside, the other wide side is inside, and the narrow side is outside, which is back-to-back contact.



1.General-purpose bearings

The universal matching bearings are specially processed. When the bearings are installed next to each other, any combination can achieve the established internal clearance or pre-tensioning and average load distribution without the use of gaskets or similar devices.

Paired bearings are used: when the load bearing capacity of a single bearing is insufficient (using the channeling configuration) or when the combined load or axial load in both directions is to be used (using the back-to-back or face-to-face configuration).

2. Basic design bearings (cannot be used for general matching), used for single bearing configuration

Single-row angular contact ball bearings of basic design are mainly used in configurations where there is only one bearing at each position. Its width and protrusion are ordinary tolerances. Therefore, it is not suitable to install two single-row angular contact ball bearings next to each other.

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