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，使(shi)用(yong)壽命長，免維護，耐高(gao)(gao)(gao)溫，耐酸堿防腐蝕，適(shi)用(yong)于高(gao)(gao)(gao)溫高(gao)(gao)(gao)速及有腐蝕工況環境的軸系傳動。

膜片型聯軸(zhou)(zhou)器(qi)能(neng)補償主動(dong)機與從動(dong)機之間由于制(zhi)造誤差、安裝誤差、承(cheng)載變(bian)形(xing)以(yi)及(ji)溫升變(bian)化的(de)影響等所引起的(de)軸(zhou)(zhou)向、徑向和角向偏移(yi)。膜片彈(dan)性聯軸(zhou)(zhou)器(qi)屬(shu)金屬(shu)彈(dan)性元(yuan)件撓性聯軸(zhou)(zhou)器(qi)，其依靠(kao)金屬(shu)聯軸(zhou)(zhou)器(qi)膜片來聯接(jie)主、從動(dong)機傳(chuan)遞扭矩，具(ju)有彈(dan)性減振、無噪聲(sheng)、不(bu)需潤滑(hua)的(de)優點。

膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)至少由(you)一(yi)個(ge)(ge)膜(mo)片(pian)(pian)(pian)(pian)和(he)(he)兩(liang)個(ge)(ge)軸(zhou)(zhou)(zhou)套(tao)組成(cheng)。膜(mo)片(pian)(pian)(pian)(pian)被用(yong)銷(xiao)釘緊固在(zai)軸(zhou)(zhou)(zhou)套(tao)上(shang)(shang)一(yi)般不(bu)(bu)會松動或(huo)引起膜(mo)片(pian)(pian)(pian)(pian)和(he)(he)軸(zhou)(zhou)(zhou)套(tao)之間的(de)反沖(chong)。有(you)一(yi)些生產(chan)商提供(gong)兩(liang)個(ge)(ge)膜(mo)片(pian)(pian)(pian)(pian)的(de)，也有(you)提供(gong)三個(ge)(ge)膜(mo)片(pian)(pian)(pian)(pian)的(de)，中間有(you)一(yi)個(ge)(ge)或(huo)兩(liang)個(ge)(ge)剛性元件(jian)，兩(liang)邊(bian) 再連在(zai)軸(zhou)(zhou)(zhou)套(tao)上(shang)(shang)。單膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)和(he)(he)雙(shuang)膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)的(de)不(bu)(bu)同(tong)之處(chu)是處(chu)理(li)各(ge)種偏差能力的(de)不(bu)(bu)同(tong)，鑒于其需要(yao)膜(mo)片(pian)(pian)(pian)(pian)能復雜的(de)彎(wan)曲，所以(yi)(yi)單膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)不(bu)(bu)太(tai)適應(ying)偏心。而雙(shuang)膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)可以(yi)(yi)同(tong)時曲向不(bu)(bu)同(tong)的(de)方向，以(yi)(yi)此來補償偏心。