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(cou)，傳遞扭(niu)矩大，使(shi)用壽命長，免維護，耐(nai)(nai)高溫，耐(nai)(nai)酸堿防腐蝕，適(shi)用于高溫高速(su)及有腐蝕工況(kuang)環境的軸系傳動。

膜(mo)(mo)片(pian)(pian)(pian)型聯(lian)軸(zhou)器能(neng)補償主動(dong)機與從(cong)動(dong)機之間由于制造誤差、安裝(zhuang)誤差、承載變形以及溫升變化的影響等所引(yin)起(qi)的軸(zhou)向(xiang)、徑(jing)向(xiang)和角向(xiang)偏移。膜(mo)(mo)片(pian)(pian)(pian)彈性(xing)聯(lian)軸(zhou)器屬(shu)(shu)金(jin)屬(shu)(shu)彈性(xing)元件撓性(xing)聯(lian)軸(zhou)器，其依靠金(jin)屬(shu)(shu)聯(lian)軸(zhou)器膜(mo)(mo)片(pian)(pian)(pian)來聯(lian)接主、從(cong)動(dong)機傳遞扭(niu)矩，具有彈性(xing)減振、無(wu)噪聲、不需潤滑的優點。

膜片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器至少由一(yi)個(ge)膜片(pian)(pian)(pian)和兩(liang)個(ge)軸(zhou)(zhou)套組(zu)成。膜片(pian)(pian)(pian)被用銷釘(ding)緊(jin)固在軸(zhou)(zhou)套上一(yi)般不(bu)會松動或引起(qi)膜片(pian)(pian)(pian)和軸(zhou)(zhou)套之間的(de)(de)反沖(chong)。有一(yi)些生產商提供兩(liang)個(ge)膜片(pian)(pian)(pian)的(de)(de)，也有提供三個(ge)膜片(pian)(pian)(pian)的(de)(de)，中間有一(yi)個(ge)或兩(liang)個(ge)剛性元件，兩(liang)邊 再連在軸(zhou)(zhou)套上。單膜片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器和雙膜片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器的(de)(de)不(bu)同(tong)之處是處理各種偏差能(neng)力的(de)(de)不(bu)同(tong)，鑒于其需要膜片(pian)(pian)(pian)能(neng)復雜的(de)(de)彎(wan)曲，所以單膜片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器不(bu)太適(shi)應偏心。而雙膜片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器可(ke)以同(tong)時曲向不(bu)同(tong)的(de)(de)方(fang)向，以此來補(bu)償偏心。