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Why are angular contact bearings usually used in pairs

2024-07-23

Why Are Angular Contact Bearings Usually Used In Pairs

Angular contact bearings are usually used in pairs because this configuration allows them to handle both radial and axial loads more effectively. Here are the key reasons for using angular contact bearings in pairs:

1. Increased Load Capacity:

When used in pairs, angular contact bearings can support greater radial and axial loads. Each bearing in the pair supports the axial load in one direction, so together they can handle loads from both directions.

2. Preloading:

Pairing these bearings allows for preloading, which is the application of an axial load to eliminate internal clearance and increase rigidity. This enhances the precision and stiffness of the bearing assembly, which is crucial in high-precision applications like machine tool spindles.

3. Improved Performance in High-Speed Applications:

Angular contact bearings have high-speed capabilities, and using them in pairs helps to distribute loads evenly across both bearings, reducing stress and wear during high-speed operations .

4. Support for Axial Loads in Both Directions:

A single angular contact bearing can only support axial loads in one direction. By using two bearings in a back-to-back or face-to-face configuration, they can accommodate axial loads in both directions, providing greater versatility and reliability.

5. Increased System Rigidity:

The paired configuration increases system rigidity and reduces deflection under load, which is particularly important in applications that require high precision and stability.

These advantages make paired angular contact bearings ideal for applications in industries such as automotive, aerospace, and manufacturing, where both load capacity and precision are critical.

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