The characteristics of angular contact ball bearings: Angular contact ball bearings have a high limit speed, can bear radial load and axial load at the same time, and can also bear pure axial load, and its axial load capacity is determined by the contact angle (load action line and bearing diameter). The angle between the planes) is determined and increases with the increase of the contact angle. Application of angular contact ball bearing: This type of bearing is suitable for double support shaft with small support distance and good rigidity. The main structural forms of angular contact ball bearings: The main structural forms of angular contact ball bearings are: single-row angular contact ball bearings, double-row angular contact ball bearings, angular contact ball bearings installed in pairs, and four-point contact ball bearings. 1. Single row angular contact ball bearings There are two types of single row angular contact ball bearings: separable type and non-separable type. The basic type of separable angular contact ball bearing is S70000. The SN70000 type is a separable inner ring type, and its inner ring and outer ring can be installed separately, which is suitable for parts with restricted installation conditions. The inner and outer rings of the non-separable angular contact ball bearing cannot be installed separately, and their contact angles are 15o, 25o, and 40o, respectively. The limit speed of the bearing on the inner ring with the lock is higher than the limit speed of the bearing with the lock on the outer ring. Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, additional axial force will be caused, and corresponding reverse axial load must be applied, so this kind of bearing is generally used in pairs. 2. Double row angular contact ball bearings Double row angular contact ball bearings can withstand large radial and axial combined loads and moment loads mainly based on radial loads. It can limit the bidirectional axial displacement of the shaft or housing, and contact Angle is 30o. 3. Pair-mounted angular contact ball bearings Pair-mounted angular contact ball bearings are composed of two sets of single-row angular contact ball bearings of the same specification in different combinations. According to the combination of their outer ring end faces, they can be divided into: series configuration ( 70000/DT), back-to-back configuration (70000/DB) and face-to-face configuration (70000/DF) three types. This kind of bearing can bear the combined radial and axial loads mainly based on radial load, and can also bear pure radial load. A tandem configuration can only withstand axial loads in one direction. The other two configurations can accommodate axial loads in either direction. This type of bearing is generally selected and combined by the manufacturer and then submitted to the user in pairs. After installation, there is preload interference, and the ring and steel ball are in the state of axial preload, thus improving the performance of the entire set of bearings as a single support. Bearing stiffness and rotational accuracy. 4. Four-point contact ball bearings Four-point contact ball bearings are separable bearings. Among them, the QJ0000 type (17600 type) has a double half inner ring, the QJF00 mouth type (116000 type) has a double half outer ring, and the contact angle is 35o. When there is no load and pure radial load, there are four points in the steel ball and the ring. touch. Under the action of pure axial load, the steel ball and the ferrule are in two-point contact, which can bear two-way axial load. This type of bearing can also withstand moment loads and has both the functions of single-row and double-row angular contact ball bearings. This kind of bearing can only guarantee normal operation when two-point contact is formed. For more bearing models, please visit the high temperature bearing network http://news center -> Bearing model column
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