What are the differences between 15° and 25° angular contact bearings?

The 15° and 25° angular contact bearings refer to the contact angles between their inner and outer rings.

15° Angular Contact Bearings:

These are primarily used in high-speed applications, suitable for high-speed rotation, light loads, and high rigidity scenarios. Common applications include high-speed spindles, grinding machines, and CNC machine tools.

25° Angular Contact Bearings:

These are designed for applications requiring higher load capacity at lower speeds, such as heavy machinery, construction equipment, metallurgical machinery, and mining equipment.

Factors to consider when selecting angular contact bearings:

1.Bearing Load: 

Angular contact bearings are ideal for high-load and high-speed conditions, so it's essential to choose the right bearing based on specific operating conditions.

2.Contact Angle：

The contact angle significantly impacts bearing performance. Typically, 15° and 25° angles are available, and the choice depends on the application.

3.Precision Level: 

Higher precision grades offer smoother operation and longer service life but come at a higher cost.

4.Guidance Method：

Angular contact bearings require guidance during operation. Suitable guidance methods, such as contact-type or non-contact-type, should be chosen based on the application.

5.Lubrication Method:

Proper lubrication is necessary for the bearing's normal operation. Oil or grease lubrication can be chosen depending on the operating conditions and bearing specifications.

For more information, feel free to contact QIBR