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(gou)緊湊，傳遞(di)扭矩大(da)，使用(yong)壽命(ming)長(chang)，免維護，耐高(gao)溫，耐酸堿防(fang)腐蝕(shi)，適用(yong)于高(gao)溫高(gao)速及有腐蝕(shi)工況環(huan)境的軸系(xi)傳動(dong)。

膜(mo)片(pian)型聯(lian)(lian)軸(zhou)器(qi)能補償主動(dong)機(ji)與從動(dong)機(ji)之間由于制造誤(wu)差(cha)、安裝誤(wu)差(cha)、承載(zai)變形(xing)以及溫升變化(hua)的影響等(deng)所引起的軸(zhou)向、徑向和角向偏移(yi)。膜(mo)片(pian)彈(dan)性(xing)聯(lian)(lian)軸(zhou)器(qi)屬(shu)金(jin)屬(shu)彈(dan)性(xing)元件撓性(xing)聯(lian)(lian)軸(zhou)器(qi)，其(qi)依靠金(jin)屬(shu)聯(lian)(lian)軸(zhou)器(qi)膜(mo)片(pian)來聯(lian)(lian)接主、從動(dong)機(ji)傳遞扭矩，具(ju)有(you)彈(dan)性(xing)減振、無噪聲、不需潤滑的優點(dian)。

膜(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸器至少由一(yi)(yi)個(ge)(ge)膜(mo)片(pian)(pian)(pian)和(he)兩(liang)個(ge)(ge)軸套(tao)組(zu)成。膜(mo)片(pian)(pian)(pian)被用銷釘緊固(gu)在軸套(tao)上一(yi)(yi)般(ban)不(bu)會松動或(huo)引起膜(mo)片(pian)(pian)(pian)和(he)軸套(tao)之間(jian)的(de)反(fan)沖(chong)。有一(yi)(yi)些生產(chan)商提供兩(liang)個(ge)(ge)膜(mo)片(pian)(pian)(pian)的(de)，也有提供三(san)個(ge)(ge)膜(mo)片(pian)(pian)(pian)的(de)，中間(jian)有一(yi)(yi)個(ge)(ge)或(huo)兩(liang)個(ge)(ge)剛性(xing)元件，兩(liang)邊 再連在軸套(tao)上。單膜(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸器和(he)雙(shuang)膜(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸器的(de)不(bu)同(tong)(tong)之處是處理(li)各種(zhong)偏(pian)(pian)差能(neng)力的(de)不(bu)同(tong)(tong)，鑒于其需要膜(mo)片(pian)(pian)(pian)能(neng)復雜(za)的(de)彎曲，所以(yi)單膜(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸器不(bu)太適(shi)應偏(pian)(pian)心。而雙(shuang)膜(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸器可以(yi)同(tong)(tong)時(shi)曲向不(bu)同(tong)(tong)的(de)方向，以(yi)此來補償偏(pian)(pian)心。