Spindle-Rotor Unit Lock Nut Design for Cost Reduction

The lock nut combines multiple functions into a single component: it provides rotational fixation through threading engagement with the rotor carrier, axial securing through engagement with the spindle, and anti-loosening protection through its self-clamping design. This merging of functions reduces the number of separate connection elements needed while maintaining connection reliability.

The lock nut serves multiple purposes simultaneously: it acts as a fastening element for rotational fixation, a positioning element for axial securing, and a protective element against unintended loosening. The self-clamping mechanism provides both locking and anti-loosening functions in one feature, demonstrating multi-functionality that reduces overall system complexity.

The connection system is divided into distinct functional segments: the threaded rod provides the basic rotational fixation through its threading, the rotor carrier provides the mounting interface, and the lock nut provides the securing mechanism. This segmentation allows each component to be manufactured independently using standard processes, reducing overall manufacturing complexity and cost compared to integrated complex connection systems.

The self-clamping lock nut automatically secures itself against loosening through its inherent mechanical design, eliminating the need for additional locking mechanisms or complex assembly procedures. The self-clamping feature activates automatically during normal operation, providing anti-loosening protection without requiring special tools or procedures during assembly or maintenance.