What is the difference between angular contact ball bearings and deep groove ball bearings?

1. Different design structures
Angular contact ball bearings: The raceways of the inner and outer rings are at a certain angle (the contact angle is usually 15°, 25°, 30° or 40°), and can bear radial and axial loads at the same time. The rolling elements of the bearing form a certain angle with the contact points of the inner and outer rings, hence the name "angular contact".
Deep groove ball bearings: The raceways of the inner and outer rings are deep groove-shaped, and the contact points of the rolling elements and the raceways are perpendicular to the bearing axis. They are mainly designed to bear radial loads, but can also bear certain axial loads.

2. Different load bearing capacity
Angular contact ball bearings: Due to the existence of the contact angle, they can bear large radial loads and unidirectional axial loads at the same time. By installing in pairs (back-to-back, face-to-face or in series), they can also bear bidirectional axial loads or higher axial loads.
Deep groove ball bearings: They are mainly designed to bear radial loads. Although they can also bear certain axial loads, their axial load capacity is much lower than that of angular contact ball bearings.

3. Different speed performance
Angular contact ball bearings: Due to their design features, angular contact ball bearings perform well at high speeds, especially when bearing axial loads while maintaining high speeds.
Deep groove ball bearings: Although they are also suitable for high-speed operation, their speed performance will be limited under high axial load conditions.

4. Different installation methods
Angular contact ball bearings: They usually need to be installed in pairs to balance axial loads or increase load-bearing capacity. Pay attention to the direction of the contact angle and the adjustment of the preload during installation.
Deep groove ball bearings: They can be used alone, are easy to install, and do not require complex adjustments.

5. Different application scenarios
Angular contact ball bearings: They are suitable for scenarios that need to bear both radial and axial loads, such as machine tool spindles, gearboxes, pumps, compressors, and high-precision mechanical equipment.
Deep groove ball bearings: They are widely used in scenarios where radial loads are the main load, such as motors, household appliances, and automotive wheels.

6. Cost and maintenance
Angular contact ball bearings: Due to their complex design and high requirements for installation accuracy, their manufacturing and maintenance costs are relatively high.
Deep groove ball bearings: simple structure, low manufacturing cost, easy maintenance and better economy.