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(shi)用壽命長(chang)，免維護，耐(nai)高(gao)溫，耐(nai)酸(suan)堿防(fang)腐蝕，適用于(yu)高(gao)溫高(gao)速(su)及有腐蝕工況環境的軸系傳動(dong)。

膜片(pian)(pian)型聯軸(zhou)器(qi)(qi)能補償主動機與從動機之間(jian)由于(yu)制造誤(wu)(wu)差、安裝誤(wu)(wu)差、承載變形(xing)以(yi)及(ji)溫(wen)升變化的影響等所引起的軸(zhou)向、徑(jing)向和角向偏移。膜片(pian)(pian)彈性(xing)(xing)聯軸(zhou)器(qi)(qi)屬金屬彈性(xing)(xing)元件撓(nao)性(xing)(xing)聯軸(zhou)器(qi)(qi)，其依靠金屬聯軸(zhou)器(qi)(qi)膜片(pian)(pian)來聯接(jie)主、從動機傳遞扭矩，具(ju)有(you)彈性(xing)(xing)減振、無(wu)噪聲、不需潤滑的優點。

膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)至少由一個(ge)(ge)(ge)膜(mo)片(pian)(pian)(pian)(pian)和(he)兩(liang)個(ge)(ge)(ge)軸(zhou)(zhou)套(tao)組成。膜(mo)片(pian)(pian)(pian)(pian)被用銷釘緊固在軸(zhou)(zhou)套(tao)上一般(ban)不會松動(dong)或引起膜(mo)片(pian)(pian)(pian)(pian)和(he)軸(zhou)(zhou)套(tao)之(zhi)間(jian)的(de)(de)(de)反(fan)沖。有一些(xie)生產商提供兩(liang)個(ge)(ge)(ge)膜(mo)片(pian)(pian)(pian)(pian)的(de)(de)(de)，也有提供三(san)個(ge)(ge)(ge)膜(mo)片(pian)(pian)(pian)(pian)的(de)(de)(de)，中間(jian)有一個(ge)(ge)(ge)或兩(liang)個(ge)(ge)(ge)剛性元件(jian)，兩(liang)邊 再連在軸(zhou)(zhou)套(tao)上。單(dan)(dan)膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)和(he)雙膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)(de)不同之(zhi)處(chu)是處(chu)理(li)各種偏(pian)(pian)差能力的(de)(de)(de)不同，鑒于其需要膜(mo)片(pian)(pian)(pian)(pian)能復雜(za)的(de)(de)(de)彎曲(qu)，所以單(dan)(dan)膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)不太適應偏(pian)(pian)心(xin)。而雙膜(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)可以同時曲(qu)向不同的(de)(de)(de)方向，以此(ci)來補償偏(pian)(pian)心(xin)。