Angular contact ball bearings can withstand both radial and axial loads in one direction. It can work at a higher speed. The larger the contact angle is, the higher the axial bearing capacity is. High precision and high speed bearings usually have a contact angle of 15 degrees. The axial bearing capacity increases with the increase of contact angle, but the lower the limit speed of the bearing is.
The angle of angular contact ball bearing is the angle between the direction of bearing force and the vertical line. The smaller the angle, the greater the radial force the bearing bears, and the smaller the axial force.
| Different working conditions for different contact angles | |
| Contact angle | Characteristics |
| 15 degrees | Angular contact bearings with high precision, high speed, mainly bearing radial force and a small part of axial force. |
| 25 and 30 degrees | The radial force is larger than that of angular contact bearings of 15 degrees, and the radial force is relatively larger. |
| 40 degree | It bears the greatest axial force and is suitable for the occasion of large axial load and vertical installation of equipment. |
Angular contact ball bearings are often used in combination of double, triple, quadruple or even quintuple to improve their limit speed.Single row angular contact ball bearings can only bear the axial load in one direction. When bearing the radial load, additional axial force will be introduced. It can only limit the axial displacement of the shaft or housing in one direction. When the contact angle of angular contact ball bearing is 40 degrees, it can bear a large axial load. Single row angular contact ball bearings are often mounted in combination with other bearings bearing load in opposite direction.
