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(di)扭矩大(da)，使(shi)用(yong)壽命長(chang)，免維護，耐高溫(wen)，耐酸堿防腐蝕(shi)，適用(yong)于高溫(wen)高速及有(you)腐蝕(shi)工(gong)況(kuang)環境的軸(zhou)系傳動。

膜片型聯(lian)軸(zhou)(zhou)器(qi)能補償主動機(ji)與從動機(ji)之間(jian)由于制造(zao)誤(wu)差、安裝誤(wu)差、承載變形(xing)以(yi)及溫升(sheng)變化的(de)影響等所引起的(de)軸(zhou)(zhou)向、徑向和(he)角向偏(pian)移(yi)。膜片彈性聯(lian)軸(zhou)(zhou)器(qi)屬(shu)金屬(shu)彈性元件撓(nao)性聯(lian)軸(zhou)(zhou)器(qi)，其(qi)依靠金屬(shu)聯(lian)軸(zhou)(zhou)器(qi)膜片來聯(lian)接主、從動機(ji)傳遞扭(niu)矩，具有(you)彈性減(jian)振、無噪聲、不需潤滑的(de)優點。

膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸器至少由(you)一(yi)(yi)個(ge)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)(he)兩個(ge)軸套(tao)組成。膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)被用銷釘緊固在(zai)軸套(tao)上一(yi)(yi)般不(bu)(bu)會(hui)松動或引起膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)(he)軸套(tao)之間的(de)反沖。有(you)一(yi)(yi)些生產商提供(gong)兩個(ge)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)，也有(you)提供(gong)三個(ge)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)，中間有(you)一(yi)(yi)個(ge)或兩個(ge)剛性元件，兩邊(bian) 再連(lian)在(zai)軸套(tao)上。單(dan)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸器和(he)(he)雙膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸器的(de)不(bu)(bu)同(tong)(tong)之處(chu)是處(chu)理(li)各種偏(pian)差能(neng)力的(de)不(bu)(bu)同(tong)(tong)，鑒于(yu)其需要膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)能(neng)復雜的(de)彎(wan)曲(qu)，所(suo)以(yi)單(dan)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸器不(bu)(bu)太適應偏(pian)心。而雙膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸器可以(yi)同(tong)(tong)時曲(qu)向(xiang)不(bu)(bu)同(tong)(tong)的(de)方向(xiang)，以(yi)此來(lai)補償偏(pian)心。