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(shou)命長，免維(wei)護，耐高溫，耐酸堿(jian)防腐蝕，適(shi)用于高溫高速(su)及有腐蝕工(gong)況(kuang)環境的軸系(xi)傳動。

膜片(pian)(pian)(pian)型(xing)聯(lian)(lian)軸器(qi)能補償(chang)主動機(ji)與從動機(ji)之間由于(yu)制造(zao)誤(wu)(wu)差(cha)、安(an)裝誤(wu)(wu)差(cha)、承(cheng)載變(bian)形以及溫升(sheng)變(bian)化的影響(xiang)等所引起的軸向(xiang)、徑(jing)向(xiang)和(he)角(jiao)向(xiang)偏移。膜片(pian)(pian)(pian)彈(dan)性(xing)聯(lian)(lian)軸器(qi)屬金屬彈(dan)性(xing)元件撓性(xing)聯(lian)(lian)軸器(qi)，其依靠金屬聯(lian)(lian)軸器(qi)膜片(pian)(pian)(pian)來聯(lian)(lian)接主、從動機(ji)傳(chuan)遞(di)扭矩，具有彈(dan)性(xing)減振(zhen)、無噪聲、不需潤(run)滑的優點。

膜(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸器(qi)至少(shao)由一個膜(mo)片(pian)(pian)(pian)(pian)(pian)和(he)兩(liang)個軸套(tao)組成。膜(mo)片(pian)(pian)(pian)(pian)(pian)被用銷釘緊固(gu)在軸套(tao)上(shang)一般(ban)不(bu)會松動(dong)或引起膜(mo)片(pian)(pian)(pian)(pian)(pian)和(he)軸套(tao)之間(jian)的(de)反沖。有(you)一些(xie)生產商提(ti)供(gong)兩(liang)個膜(mo)片(pian)(pian)(pian)(pian)(pian)的(de)，也有(you)提(ti)供(gong)三個膜(mo)片(pian)(pian)(pian)(pian)(pian)的(de)，中間(jian)有(you)一個或兩(liang)個剛性元件，兩(liang)邊 再連在軸套(tao)上(shang)。單膜(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸器(qi)和(he)雙(shuang)膜(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸器(qi)的(de)不(bu)同(tong)(tong)之處是處理各種偏差(cha)能(neng)力(li)的(de)不(bu)同(tong)(tong)，鑒于其需要(yao)膜(mo)片(pian)(pian)(pian)(pian)(pian)能(neng)復雜的(de)彎曲，所以(yi)單膜(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸器(qi)不(bu)太(tai)適應偏心(xin)(xin)。而雙(shuang)膜(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸器(qi)可以(yi)同(tong)(tong)時曲向不(bu)同(tong)(tong)的(de)方(fang)向，以(yi)此(ci)來補償偏心(xin)(xin)。