Small Worm Screws

In real-world automotive mirror applications, the small worm screw works together with a micro motor and worm wheel to form a complete fold-and-unfold transmission system. When the driver activates the power-folding switch, the micro motor spins rapidly, transferring power through the worm screw to the worm wheel. The self-locking property inherent to worm gearing allows the mirror to hold firmly in place once it reaches the folded or unfolded position, preventing unintended movement caused by vehicle vibration or light external contact — a feature that is especially critical for maintaining a stable mirror position while driving.

Beyond the safety benefits provided by self-locking, small worm screws also offer advantages such as compact size, light weight, and flexible gear ratio design, allowing manufacturers to customize production based on the specific folding angle and response speed requirements of different vehicle models. With precision heat treatment and surface finishing processes, these worm screws deliver strong wear resistance and corrosion protection, allowing them to withstand temperature fluctuations, humidity changes, and other demanding exterior conditions over the long term — ensuring the mirror folding mechanism remains stable and reliable throughout the vehicle's operational lifespan.