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(jin)湊，傳遞(di)扭矩大，使(shi)用壽命(ming)長(chang)，免維護，耐高溫，耐酸堿防腐(fu)蝕(shi)，適用于高溫高速及有腐(fu)蝕(shi)工況(kuang)環境的軸系傳動。

膜片(pian)型聯(lian)(lian)(lian)軸(zhou)器(qi)能(neng)補償主(zhu)動機(ji)與(yu)從動機(ji)之間(jian)由于(yu)制造誤差、安裝誤差、承載(zai)變形(xing)以及(ji)溫(wen)升變化的影響等所引起的軸(zhou)向、徑向和角向偏移。膜片(pian)彈(dan)性聯(lian)(lian)(lian)軸(zhou)器(qi)屬金屬彈(dan)性元(yuan)件撓性聯(lian)(lian)(lian)軸(zhou)器(qi)，其依靠(kao)金屬聯(lian)(lian)(lian)軸(zhou)器(qi)膜片(pian)來聯(lian)(lian)(lian)接(jie)主(zhu)、從動機(ji)傳(chuan)遞扭矩，具有彈(dan)性減振、無噪聲、不(bu)需潤(run)滑的優點。

膜(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)器(qi)至少由一個膜(mo)片(pian)(pian)(pian)(pian)和(he)(he)兩個軸(zhou)套(tao)組成。膜(mo)片(pian)(pian)(pian)(pian)被(bei)用銷釘緊固(gu)在(zai)軸(zhou)套(tao)上一般不會(hui)松(song)動或(huo)引起(qi)膜(mo)片(pian)(pian)(pian)(pian)和(he)(he)軸(zhou)套(tao)之間的反沖(chong)。有一些(xie)生(sheng)產(chan)商提(ti)供兩個膜(mo)片(pian)(pian)(pian)(pian)的，也有提(ti)供三個膜(mo)片(pian)(pian)(pian)(pian)的，中(zhong)間有一個或(huo)兩個剛性元(yuan)件，兩邊 再連在(zai)軸(zhou)套(tao)上。單膜(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)器(qi)和(he)(he)雙膜(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)器(qi)的不同之處是處理(li)各種偏差(cha)能力的不同，鑒于(yu)其需要(yao)膜(mo)片(pian)(pian)(pian)(pian)能復雜的彎曲，所以單膜(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)器(qi)不太適(shi)應偏心(xin)。而雙膜(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)器(qi)可以同時曲向(xiang)不同的方向(xiang)，以此來補償偏心(xin)。