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，傳遞扭矩大(da)，使(shi)用(yong)壽命長，免維護，耐(nai)高(gao)溫(wen)，耐(nai)酸堿防腐蝕(shi)，適(shi)用(yong)于高(gao)溫(wen)高(gao)速及有腐蝕(shi)工(gong)況環境的(de)軸系(xi)傳動。

膜片(pian)型聯(lian)軸(zhou)器(qi)(qi)能補償主動機與從動機之(zhi)間由于(yu)制造誤差、安(an)裝誤差、承載變形以及溫升變化的(de)影響等所(suo)引起(qi)的(de)軸(zhou)向、徑向和角向偏移。膜片(pian)彈(dan)性(xing)聯(lian)軸(zhou)器(qi)(qi)屬金屬彈(dan)性(xing)元件(jian)撓性(xing)聯(lian)軸(zhou)器(qi)(qi)，其(qi)依靠金屬聯(lian)軸(zhou)器(qi)(qi)膜片(pian)來聯(lian)接主、從動機傳(chuan)遞扭矩，具有(you)彈(dan)性(xing)減振、無噪聲、不需潤(run)滑(hua)的(de)優點(dian)。

膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)至少由一(yi)個(ge)膜(mo)片(pian)(pian)(pian)(pian)和兩個(ge)軸(zhou)(zhou)套(tao)組成。膜(mo)片(pian)(pian)(pian)(pian)被(bei)用銷釘緊固在軸(zhou)(zhou)套(tao)上(shang)一(yi)般不會松動或引(yin)起膜(mo)片(pian)(pian)(pian)(pian)和軸(zhou)(zhou)套(tao)之間的反(fan)沖。有(you)一(yi)些生產(chan)商(shang)提供(gong)兩個(ge)膜(mo)片(pian)(pian)(pian)(pian)的，也有(you)提供(gong)三個(ge)膜(mo)片(pian)(pian)(pian)(pian)的，中間有(you)一(yi)個(ge)或兩個(ge)剛(gang)性元件，兩邊 再連在軸(zhou)(zhou)套(tao)上(shang)。單膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)和雙膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)的不同(tong)(tong)之處是處理各種偏差能(neng)力的不同(tong)(tong)，鑒于其需要(yao)膜(mo)片(pian)(pian)(pian)(pian)能(neng)復雜的彎(wan)曲，所以單膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)不太(tai)適應偏心(xin)。而(er)雙膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)可(ke)以同(tong)(tong)時(shi)曲向不同(tong)(tong)的方向，以此來(lai)補償偏心(xin)。