Which types of bearings are categorized as radial, angular, and thrust?

• A. Ball bearings
• B. Roller bearings
• C. Magnetic bearings
• D. Fluid bearings

Answer: (B)

Roller bearings are indeed categorized into radial, angular, and thrust types based on their design and application.

Radial roller bearings are designed to support loads that are perpendicular to the axis of rotation, making them ideal for applications where the primary load is radial. Angular roller bearings, on the other hand, are specifically engineered to manage combined loads, including both radial and axial forces, thanks to their ability to take on angular misalignment. Thrust roller bearings are used when the primary load is along the axis of the shaft, providing excellent support for axial loads in applications such as gearboxes and screw jacks.

Each type has its unique structure and operational features, enhancing their performance in different settings. Ball bearings, magnetic bearings, and fluid bearings each have distinct characteristics and uses, which do not fit into the radial, angular, and thrust categorization as effectively as roller bearings do. Thus, roller bearings are the most comprehensive classification for understanding and applying these types of load-bearing functionalities.