What type of bearing is constructed with two rows that maintain an angular contact?

• A. Single Row Angular Contact Ball Bearing
• B. Single Row Ball Bearing
• C. Double Row Angular Contact Ball Bearing
• D. Deep Groove Ball Bearing

Answer: (C)

The type of bearing that is constructed with two rows maintaining an angular contact is indeed the Double Row Angular Contact Ball Bearing. This design allows for greater load-carrying capacity compared to single-row configurations, as the arrangement with two rows enables the bearing to handle both radial and axial loads more effectively.

In a double row angular contact ball bearing, the contact angles in both rows are designed to be complementary, which provides improved rigidity and stability. This is particularly beneficial in applications where the bearing is subjected to high loads or in situations where there is a need for high precision and alignment, as the two rows help to distribute the load evenly across the bearing.

The other options do not meet the criteria specified in the question. For instance, single row angular contact ball bearings only feature one row, making them less capable of managing heavy axial loads compared to the double row variant. Similarly, a standard single row ball bearing does not maintain angular contact, and a deep groove ball bearing, while versatile and widely used, primarily allows for radial loads and is not specifically designed with angular contact configuration. Thus, the double row design is what gives the double row angular contact ball bearing its unique ability to maintain angular contact and handle more complex loading scenarios effectively.