Most single-row angular contact ball bearings are non-separable angular contact ball bearings. The raceway of the ring has a lock, and the two rings cannot be separated. The scope of the application is different according to the contact angle. The greater the contact angle, the greater the axial load.
1. The meaning of angular contact ball bearing angle
Angular contact ball bearings can withstand axial force and radial force in one direction at the same time. The angle of angular contact ball bearings is the angle formed by the line of the bearing's steel ball and the contact points of the inner and outer rings and the radial direction. There is a certain angle between the connection line between the upper and lower points of the rolling element and the radial direction. The larger the contact angle, the higher the axial load-carrying capacity; on the contrary, the smaller the angle, the greater the radial force the bearing will bear, and the smaller the axial force.
2, angular contact ball bearing angle distinction
1). The contact angle is 15 degrees
The model of the angular contact ball bearing is 70,000C. The angular contact ball bearing can bear radial load and axial load at the same time and can work at a higher speed. The codes and meanings of angular contact ball bearings represented by different contact angles are also different. Commonly used high-precision and high-speed bearings usually have a contact angle of 15 degrees, which mainly bears radial force and a small part of axial force.
2). The contact angle is 25 degrees
The model of angular contact ball bearings is 70,000AC. Angular contact ball bearings mainly bear larger unidirectional axial loads. The larger the contact angle, the greater the load capacity. NSK specially produces such bearings with a contact angle of 25°, which is represented by A5. Some brands call the A5 angle as the AC angle.
3). The contact angle is 30 degrees
Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, the additional axial force will be caused and the corresponding reverse load must be applied. Therefore, this type of bearing is generally used in pairs (details Visible: Why are angular contact ball bearings used in pairs). Double row angular contact ball bearings can withstand large radial and axial bidirectional combined loads and moment loads, which are dominated by radial loads. It can limit the axial displacement of the shaft or housing in both directions. The contact angle is 30 degrees. The angular contact ball The model of the bearing is 70,000A.
4). The contact angle is 40 degrees
The contact ball bearing has a high limit speed and can bear radial load and axial load at the same time, and can also bear pure axial load. Its axial load capacity is determined by the contact angle and increases with the increase of the contact angle. The angular contact ball bearing has a contact angle of 40 degrees, and the model of the angular contact ball bearing is 70,000B, so it can bear a large axial load and is suitable for the vertical installation of equipment.
The above is the answer to distinguish angular contact ball bearings. The angular contact ball bearings with a contact angle of 30 degrees are double-row angular contact ball bearings because single-row bearings can only bear axial force in one direction, while 30 degrees angular contact Ball bearings can withstand two-way axial forces. TEDIN bearings specialize in the production of ultra-precision angular contact ball bearings with superior quality and long service life. They are suitable for various working environments. You are welcome to contact us for details.
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