膜片聯軸器在傳遞扭矩的同時通過彈性膜片的的變形來補償軸向和角向的位移，是一種高性能的金屬彈性撓性聯軸器。膜片式聯軸器結構緊湊，傳遞(di)扭矩大，使(shi)用(yong)壽命(ming)長，免(mian)維護，耐(nai)高溫，耐(nai)酸堿防腐(fu)蝕，適(shi)用(yong)于高溫高速及(ji)有腐(fu)蝕工況環境的軸(zhou)系傳動(dong)。

膜片型聯(lian)(lian)(lian)軸(zhou)器(qi)能補償(chang)主(zhu)(zhu)動(dong)機與從動(dong)機之間由于制造(zao)誤差、安裝誤差、承載變形以(yi)及溫升變化的影(ying)響等所引起的軸(zhou)向、徑向和角向偏移。膜片彈(dan)性聯(lian)(lian)(lian)軸(zhou)器(qi)屬金屬彈(dan)性元(yuan)件撓(nao)性聯(lian)(lian)(lian)軸(zhou)器(qi)，其依靠(kao)金屬聯(lian)(lian)(lian)軸(zhou)器(qi)膜片來聯(lian)(lian)(lian)接主(zhu)(zhu)、從動(dong)機傳遞扭矩(ju)，具有彈(dan)性減(jian)振、無噪(zao)聲、不(bu)需潤滑的優點。

膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)至少由一(yi)個膜(mo)片(pian)(pian)(pian)和兩個軸(zhou)(zhou)套組成(cheng)。膜(mo)片(pian)(pian)(pian)被用銷釘緊固在(zai)軸(zhou)(zhou)套上一(yi)般不(bu)(bu)會松(song)動或引起膜(mo)片(pian)(pian)(pian)和軸(zhou)(zhou)套之間的反沖。有一(yi)些(xie)生產(chan)商(shang)提供兩個膜(mo)片(pian)(pian)(pian)的，也有提供三個膜(mo)片(pian)(pian)(pian)的，中(zhong)間有一(yi)個或兩個剛性元(yuan)件，兩邊 再連在(zai)軸(zhou)(zhou)套上。單(dan)膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)和雙膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)的不(bu)(bu)同之處是處理各(ge)種偏(pian)差能力的不(bu)(bu)同，鑒于其(qi)需要膜(mo)片(pian)(pian)(pian)能復雜的彎(wan)曲(qu)，所以單(dan)膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)不(bu)(bu)太適應偏(pian)心。而雙膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)可以同時(shi)曲(qu)向不(bu)(bu)同的方向，以此(ci)來補(bu)償偏(pian)心。