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，傳遞扭矩大，使用壽命長，免維護，耐(nai)高溫，耐(nai)酸堿防腐(fu)蝕(shi)，適用于高溫高速及有腐(fu)蝕(shi)工況環境的軸系(xi)傳動(dong)。

膜片型聯(lian)(lian)軸(zhou)(zhou)器能補償(chang)主動(dong)(dong)機(ji)與從動(dong)(dong)機(ji)之間由(you)于(yu)制造誤差、安裝誤差、承載變(bian)(bian)形以及(ji)溫升變(bian)(bian)化的影(ying)響等所引(yin)起的軸(zhou)(zhou)向(xiang)、徑向(xiang)和角向(xiang)偏移。膜片彈性(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器屬(shu)金屬(shu)彈性(xing)(xing)元件撓性(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器，其(qi)依靠金屬(shu)聯(lian)(lian)軸(zhou)(zhou)器膜片來(lai)聯(lian)(lian)接主、從動(dong)(dong)機(ji)傳(chuan)遞扭矩，具有彈性(xing)(xing)減振、無(wu)噪(zao)聲、不需潤滑(hua)的優(you)點。

膜(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)至少由一(yi)(yi)個(ge)膜(mo)片(pian)(pian)(pian)和兩個(ge)軸(zhou)(zhou)(zhou)套(tao)(tao)(tao)組(zu)成。膜(mo)片(pian)(pian)(pian)被用銷釘緊固在軸(zhou)(zhou)(zhou)套(tao)(tao)(tao)上一(yi)(yi)般(ban)不(bu)會松動(dong)或引起(qi)膜(mo)片(pian)(pian)(pian)和軸(zhou)(zhou)(zhou)套(tao)(tao)(tao)之(zhi)間的反沖(chong)。有一(yi)(yi)些生產商提供(gong)兩個(ge)膜(mo)片(pian)(pian)(pian)的，也有提供(gong)三個(ge)膜(mo)片(pian)(pian)(pian)的，中間有一(yi)(yi)個(ge)或兩個(ge)剛性元件，兩邊 再連在軸(zhou)(zhou)(zhou)套(tao)(tao)(tao)上。單(dan)膜(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)和雙膜(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)的不(bu)同之(zhi)處(chu)是(shi)處(chu)理各種偏(pian)(pian)差能(neng)力的不(bu)同，鑒于其需要膜(mo)片(pian)(pian)(pian)能(neng)復雜的彎曲，所以(yi)單(dan)膜(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)不(bu)太適(shi)應(ying)偏(pian)(pian)心(xin)。而雙膜(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)可(ke)以(yi)同時曲向不(bu)同的方向，以(yi)此來補償偏(pian)(pian)心(xin)。