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，傳遞扭矩大，使用(yong)壽命長，免維護，耐高(gao)溫，耐酸堿(jian)防腐蝕，適(shi)用(yong)于高(gao)溫高(gao)速及(ji)有腐蝕工況環(huan)境的(de)軸(zhou)系傳動(dong)。

膜(mo)片(pian)(pian)型聯(lian)軸(zhou)(zhou)(zhou)器能補(bu)償主動機(ji)與從動機(ji)之間由(you)于(yu)制造誤(wu)差、安裝(zhuang)誤(wu)差、承載變形以(yi)及溫升(sheng)變化(hua)的(de)影響等所引起的(de)軸(zhou)(zhou)(zhou)向、徑向和角向偏移。膜(mo)片(pian)(pian)彈(dan)性聯(lian)軸(zhou)(zhou)(zhou)器屬金(jin)屬彈(dan)性元(yuan)件撓性聯(lian)軸(zhou)(zhou)(zhou)器，其依靠金(jin)屬聯(lian)軸(zhou)(zhou)(zhou)器膜(mo)片(pian)(pian)來聯(lian)接主、從動機(ji)傳遞扭(niu)矩，具有(you)彈(dan)性減振、無(wu)噪聲、不(bu)需(xu)潤滑的(de)優點。

膜(mo)(mo)片(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)至少(shao)由(you)一(yi)個膜(mo)(mo)片(pian)(pian)和兩(liang)個軸(zhou)套(tao)組成。膜(mo)(mo)片(pian)(pian)被(bei)用銷釘緊固在(zai)軸(zhou)套(tao)上(shang)(shang)一(yi)般(ban)不(bu)(bu)(bu)會松(song)動(dong)或(huo)引起膜(mo)(mo)片(pian)(pian)和軸(zhou)套(tao)之(zhi)間的(de)反沖(chong)。有(you)一(yi)些(xie)生產商提供(gong)兩(liang)個膜(mo)(mo)片(pian)(pian)的(de)，也(ye)有(you)提供(gong)三個膜(mo)(mo)片(pian)(pian)的(de)，中間有(you)一(yi)個或(huo)兩(liang)個剛性元件，兩(liang)邊 再連(lian)在(zai)軸(zhou)套(tao)上(shang)(shang)。單(dan)膜(mo)(mo)片(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)和雙膜(mo)(mo)片(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)的(de)不(bu)(bu)(bu)同(tong)之(zhi)處(chu)(chu)是(shi)處(chu)(chu)理各種偏(pian)差能力的(de)不(bu)(bu)(bu)同(tong)，鑒于其需要膜(mo)(mo)片(pian)(pian)能復雜(za)的(de)彎曲，所以單(dan)膜(mo)(mo)片(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)不(bu)(bu)(bu)太適應偏(pian)心。而雙膜(mo)(mo)片(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)可以同(tong)時曲向不(bu)(bu)(bu)同(tong)的(de)方向，以此來補(bu)償偏(pian)心。