Chain ring overrunning clutch is developed for the disadvantages of roller overunning clutch that is used in variable stroke drive, its working principle is original and its construction is unique.

• 链环式超越离合器是一种原理新颖、结构独特的超越离合器，它是针对在脉动无级变速器中使用的滚柱式超越离合器的缺陷而研制的。