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(niu)矩大，使用(yong)壽命長，免維護，耐(nai)高(gao)溫(wen)，耐(nai)酸堿防(fang)腐蝕(shi)，適用(yong)于高(gao)溫(wen)高(gao)速及(ji)有腐蝕(shi)工(gong)況環(huan)境的軸(zhou)系傳動。

膜(mo)片型聯(lian)軸器(qi)能補償(chang)主動機(ji)(ji)與從(cong)動機(ji)(ji)之間由于(yu)制(zhi)造誤差、安裝(zhuang)誤差、承載變(bian)形以及溫升變(bian)化的影(ying)響等所引(yin)起的軸向(xiang)、徑(jing)向(xiang)和角向(xiang)偏移。膜(mo)片彈(dan)性聯(lian)軸器(qi)屬(shu)金屬(shu)彈(dan)性元件撓(nao)性聯(lian)軸器(qi)，其依靠金屬(shu)聯(lian)軸器(qi)膜(mo)片來聯(lian)接主、從(cong)動機(ji)(ji)傳遞扭矩，具有彈(dan)性減(jian)振、無噪聲(sheng)、不需潤滑的優點。

膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)至少(shao)由一個膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)兩(liang)(liang)個軸(zhou)套組成。膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)被用銷釘緊固在(zai)軸(zhou)套上一般(ban)不(bu)(bu)會松(song)動或引起膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)軸(zhou)套之(zhi)間的(de)(de)反沖。有一些生產(chan)商提供兩(liang)(liang)個膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)(de)，也有提供三個膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)(de)，中間有一個或兩(liang)(liang)個剛(gang)性元(yuan)件(jian)，兩(liang)(liang)邊(bian) 再(zai)連在(zai)軸(zhou)套上。單(dan)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)和(he)雙膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)的(de)(de)不(bu)(bu)同之(zhi)處是處理各種偏(pian)差能(neng)力的(de)(de)不(bu)(bu)同，鑒于其需(xu)要膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)能(neng)復雜的(de)(de)彎曲(qu)，所以(yi)單(dan)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)不(bu)(bu)太適應(ying)偏(pian)心。而雙膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器(qi)(qi)可以(yi)同時(shi)曲(qu)向不(bu)(bu)同的(de)(de)方向，以(yi)此來補償偏(pian)心。