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(chuan)遞扭矩大，使用(yong)壽(shou)命長(chang)，免維護，耐高溫，耐酸堿防腐蝕(shi)，適用(yong)于高溫高速及有腐蝕(shi)工況環(huan)境的軸(zhou)系傳(chuan)動。

膜片(pian)型聯(lian)(lian)軸器(qi)能(neng)補償主動(dong)機與從動(dong)機之間由于制造誤差、安裝誤差、承載(zai)變(bian)形以及溫升變(bian)化的(de)影響等所引起(qi)的(de)軸向(xiang)、徑向(xiang)和角向(xiang)偏(pian)移(yi)。膜片(pian)彈(dan)性聯(lian)(lian)軸器(qi)屬金屬彈(dan)性元(yuan)件(jian)撓性聯(lian)(lian)軸器(qi)，其依靠金屬聯(lian)(lian)軸器(qi)膜片(pian)來聯(lian)(lian)接主、從動(dong)機傳遞扭(niu)矩，具(ju)有彈(dan)性減振、無噪聲、不(bu)需潤滑(hua)的(de)優點。

膜(mo)(mo)(mo)片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器至(zhi)少由一(yi)個膜(mo)(mo)(mo)片(pian)(pian)和(he)兩個軸(zhou)(zhou)套組成。膜(mo)(mo)(mo)片(pian)(pian)被用銷釘緊固(gu)在(zai)軸(zhou)(zhou)套上一(yi)般不(bu)(bu)會(hui)松(song)動(dong)或引起(qi)膜(mo)(mo)(mo)片(pian)(pian)和(he)軸(zhou)(zhou)套之間(jian)的反沖。有(you)(you)一(yi)些生產商提(ti)供(gong)兩個膜(mo)(mo)(mo)片(pian)(pian)的，也有(you)(you)提(ti)供(gong)三個膜(mo)(mo)(mo)片(pian)(pian)的，中間(jian)有(you)(you)一(yi)個或兩個剛(gang)性元件(jian)，兩邊 再連在(zai)軸(zhou)(zhou)套上。單膜(mo)(mo)(mo)片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器和(he)雙膜(mo)(mo)(mo)片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器的不(bu)(bu)同(tong)之處(chu)是(shi)處(chu)理各種偏差能(neng)(neng)力(li)的不(bu)(bu)同(tong)，鑒于其需(xu)要(yao)膜(mo)(mo)(mo)片(pian)(pian)能(neng)(neng)復雜的彎曲(qu)，所以(yi)單膜(mo)(mo)(mo)片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器不(bu)(bu)太適應偏心(xin)。而雙膜(mo)(mo)(mo)片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器可以(yi)同(tong)時曲(qu)向不(bu)(bu)同(tong)的方向，以(yi)此來補償(chang)偏心(xin)。