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，使用壽命長(chang)，免維護，耐(nai)高(gao)(gao)溫，耐(nai)酸堿(jian)防(fang)腐(fu)蝕，適用于高(gao)(gao)溫高(gao)(gao)速及有腐(fu)蝕工況環(huan)境的軸系傳動。

膜(mo)片(pian)型聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)能補償(chang)主動機(ji)與從(cong)動機(ji)之(zhi)間由于制(zhi)造誤差、安裝(zhuang)誤差、承載變(bian)形(xing)以(yi)及溫升變(bian)化的影響等所引起的軸(zhou)(zhou)(zhou)向(xiang)(xiang)、徑向(xiang)(xiang)和角向(xiang)(xiang)偏移。膜(mo)片(pian)彈(dan)性聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)屬(shu)金(jin)屬(shu)彈(dan)性元件撓性聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)，其依靠金(jin)屬(shu)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)膜(mo)片(pian)來聯(lian)(lian)接主、從(cong)動機(ji)傳遞扭矩(ju)，具(ju)有彈(dan)性減(jian)振、無噪聲、不(bu)需潤滑(hua)的優點。

膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器至(zhi)少由一(yi)(yi)個膜(mo)(mo)片(pian)(pian)(pian)和兩(liang)個軸套(tao)組成。膜(mo)(mo)片(pian)(pian)(pian)被用銷釘緊(jin)固在(zai)軸套(tao)上一(yi)(yi)般不(bu)(bu)會松動(dong)或引起(qi)膜(mo)(mo)片(pian)(pian)(pian)和軸套(tao)之(zhi)間(jian)的(de)(de)反沖(chong)。有(you)一(yi)(yi)些生產商(shang)提供兩(liang)個膜(mo)(mo)片(pian)(pian)(pian)的(de)(de)，也(ye)有(you)提供三(san)個膜(mo)(mo)片(pian)(pian)(pian)的(de)(de)，中(zhong)間(jian)有(you)一(yi)(yi)個或兩(liang)個剛性元件，兩(liang)邊 再連在(zai)軸套(tao)上。單膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器和雙(shuang)膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器的(de)(de)不(bu)(bu)同(tong)之(zhi)處是處理各(ge)種偏差(cha)能力的(de)(de)不(bu)(bu)同(tong)，鑒于其需要膜(mo)(mo)片(pian)(pian)(pian)能復雜的(de)(de)彎(wan)曲，所以單膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器不(bu)(bu)太適應偏心(xin)。而(er)雙(shuang)膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器可以同(tong)時曲向(xiang)不(bu)(bu)同(tong)的(de)(de)方向(xiang)，以此來補(bu)償(chang)偏心(xin)。