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(cou)，傳遞扭矩大，使(shi)用壽命長(chang)，免維護，耐高溫，耐酸堿防腐蝕，適用于高溫高速及有腐蝕工況環境的軸系傳動。

膜片型聯(lian)(lian)軸器(qi)能補償主動(dong)機(ji)與從(cong)動(dong)機(ji)之間由于制造(zao)誤差(cha)、安裝(zhuang)誤差(cha)、承(cheng)載變(bian)形(xing)以及(ji)溫升(sheng)變(bian)化的(de)影響等所引起(qi)的(de)軸向(xiang)(xiang)、徑向(xiang)(xiang)和角向(xiang)(xiang)偏移(yi)。膜片彈性(xing)(xing)聯(lian)(lian)軸器(qi)屬金(jin)屬彈性(xing)(xing)元(yuan)件撓性(xing)(xing)聯(lian)(lian)軸器(qi)，其(qi)依(yi)靠金(jin)屬聯(lian)(lian)軸器(qi)膜片來聯(lian)(lian)接(jie)主、從(cong)動(dong)機(ji)傳遞扭(niu)矩，具有彈性(xing)(xing)減振、無(wu)噪聲、不需(xu)潤滑的(de)優點(dian)。

膜片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器至少由一(yi)個(ge)膜片(pian)(pian)(pian)(pian)和(he)(he)兩(liang)(liang)個(ge)軸(zhou)(zhou)套(tao)組成。膜片(pian)(pian)(pian)(pian)被用銷釘緊固在(zai)(zai)軸(zhou)(zhou)套(tao)上一(yi)般(ban)不(bu)(bu)(bu)會(hui)松動或(huo)引起(qi)膜片(pian)(pian)(pian)(pian)和(he)(he)軸(zhou)(zhou)套(tao)之間的(de)反沖。有一(yi)些生(sheng)產商(shang)提(ti)供(gong)(gong)兩(liang)(liang)個(ge)膜片(pian)(pian)(pian)(pian)的(de)，也(ye)有提(ti)供(gong)(gong)三個(ge)膜片(pian)(pian)(pian)(pian)的(de)，中間有一(yi)個(ge)或(huo)兩(liang)(liang)個(ge)剛性(xing)元(yuan)件，兩(liang)(liang)邊 再連在(zai)(zai)軸(zhou)(zhou)套(tao)上。單膜片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器和(he)(he)雙(shuang)膜片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器的(de)不(bu)(bu)(bu)同(tong)(tong)(tong)之處(chu)是處(chu)理各種偏差能力(li)的(de)不(bu)(bu)(bu)同(tong)(tong)(tong)，鑒于其(qi)需要膜片(pian)(pian)(pian)(pian)能復雜的(de)彎曲，所以(yi)單膜片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器不(bu)(bu)(bu)太適(shi)應(ying)偏心。而雙(shuang)膜片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器可以(yi)同(tong)(tong)(tong)時曲向不(bu)(bu)(bu)同(tong)(tong)(tong)的(de)方向，以(yi)此(ci)來補償偏心。