需獲得運轉安穩平靜及較大減速比的機構，由於是屬於交錯軸的傳動方式，相較於平行軸的傳動效率為低。
廣泛應用於高減速比與分度機構，例如工具機旋轉工作台、汽車電動窗升降機構、電梯減速機、各式轉向機構等等。
Worm Drive Gear
For mechanisms requiring stable and smooth operation with a higher reduction ratio, the intersecting axis drive method is used. Compared to parallel axis transmissions, it has lower efficiency.
It is widely applied in high reduction ratio and indexing mechanisms, such as rotary tables in machine tools, electric window lift mechanisms in automobiles, elevator gearboxes, and various steering mechanisms.