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(gou)緊湊，傳遞扭矩(ju)大，使(shi)用壽命(ming)長，免維護，耐(nai)高溫，耐(nai)酸(suan)堿(jian)防腐蝕，適(shi)用于高溫高速及有腐蝕工況環境的(de)軸系(xi)傳動。

膜(mo)片型聯軸(zhou)(zhou)器(qi)(qi)能(neng)補(bu)償(chang)主動機(ji)與從動機(ji)之間由于制造誤差、安裝誤差、承(cheng)載(zai)變(bian)(bian)形以及溫升變(bian)(bian)化的(de)影響等所引起的(de)軸(zhou)(zhou)向、徑向和角向偏移。膜(mo)片彈(dan)性聯軸(zhou)(zhou)器(qi)(qi)屬(shu)(shu)金(jin)屬(shu)(shu)彈(dan)性元件(jian)撓性聯軸(zhou)(zhou)器(qi)(qi)，其依(yi)靠金(jin)屬(shu)(shu)聯軸(zhou)(zhou)器(qi)(qi)膜(mo)片來聯接主、從動機(ji)傳遞扭矩，具(ju)有彈(dan)性減振、無噪聲、不需潤滑(hua)的(de)優點(dian)。

膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)至少由一(yi)個膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)和兩(liang)個軸(zhou)(zhou)套組成。膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)被用銷釘緊固在軸(zhou)(zhou)套上一(yi)般不(bu)(bu)會松動或引(yin)起膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)和軸(zhou)(zhou)套之(zhi)間的(de)反沖。有一(yi)些生產(chan)商提供(gong)(gong)兩(liang)個膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)的(de)，也有提供(gong)(gong)三(san)個膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)的(de)，中(zhong)間有一(yi)個或兩(liang)個剛(gang)性元件，兩(liang)邊 再連在軸(zhou)(zhou)套上。單(dan)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)和雙膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)的(de)不(bu)(bu)同之(zhi)處是處理各(ge)種偏(pian)差能力的(de)不(bu)(bu)同，鑒于其需要膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)能復雜的(de)彎曲，所以(yi)(yi)單(dan)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)不(bu)(bu)太適應偏(pian)心。而雙膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)器(qi)可(ke)以(yi)(yi)同時(shi)曲向不(bu)(bu)同的(de)方向，以(yi)(yi)此來補(bu)償偏(pian)心。