Variable radius under module balanced bearing

The bearing is divided into multiple functional segments: a housing, a variable radius follower that contacts the torque tube, and multiple radii (first, second, and third radii) that provide different levels of support. This segmentation allows each component to perform a specific function in resisting wind loading while maintaining overall structural stability without requiring a monolithic complex structure.

The patent applies local quality by providing different radius values at different locations of the follower: a first radius at a first location, a second radius at a second location, and a third radius at a third location. Each radius is optimized for its specific position to handle torsional excitation from wind loading locally, rather than uniformly throughout the entire structure, thereby reducing overall complexity.

The slot is designed with an asymmetric variable radius configuration rather than a symmetric constant radius. The first radius, second radius, and third radius create an asymmetric profile that provides clearance for articulation systems at specific positions while maintaining proper bearing function. This asymmetric design resolves interference issues that would occur with a symmetric constant radius slot.

The variable radius slot creates a dynamic relationship between the follower and the torque tube during rotation. As the bearing rotates through different angular positions, the contact point between the follower and torque tube moves along the variable radius profile, automatically adjusting the effective radius to maintain clearance with articulation systems throughout the range of motion.