What types of loads do ball bearings primarily absorb in gas turbines?

Ball bearings in gas turbines are primarily designed to absorb radial and axial loads, which are critical for the operation of rotating equipment.

Radial loads occur perpendicular to the axis of rotation, meaning they act outward from the center of the bearing toward the outer race. These loads are essential to support the weight of the rotating components and ensure smooth operation. Ball bearings effectively handle radial loads by distributing the force along the raceways and minimizing friction.

Axial loads, on the other hand, act parallel to the axis of rotation and are essential for maintaining the alignment of the rotating shafts under varying operational conditions. Ball bearings can handle these loads effectively due to their design, which allows for the accommodation of both radial and axial forces.

This dual capability is crucial in gas turbines because they operate under high-speed and high-temperature conditions, where both types of loads can occur simultaneously. The ability of ball bearings to manage these loads contributes to the reliability and longevity of the turbine system. Other load types specified in the other options, such as torque and shear loads or static and dynamic loads, are relevant to mechanical systems but do not specifically define the primary functional role of ball bearings in this context.