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(ming)長，免(mian)維護，耐(nai)高(gao)溫，耐(nai)酸堿防腐蝕(shi)(shi)，適用于高(gao)溫高(gao)速及(ji)有腐蝕(shi)(shi)工況(kuang)環境的軸系傳動(dong)。

膜片(pian)型聯軸器能(neng)補償主(zhu)動(dong)機(ji)與從動(dong)機(ji)之間由于制造(zao)誤(wu)差、安(an)裝誤(wu)差、承載變形以及溫(wen)升變化的影響等所引起的軸向(xiang)、徑向(xiang)和角向(xiang)偏移(yi)。膜片(pian)彈性聯軸器屬(shu)金(jin)屬(shu)彈性元件撓性聯軸器，其(qi)依(yi)靠金(jin)屬(shu)聯軸器膜片(pian)來聯接(jie)主(zhu)、從動(dong)機(ji)傳遞(di)扭矩(ju)，具有彈性減振(zhen)、無(wu)噪聲、不(bu)需(xu)潤滑的優點。

膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)至少由一個(ge)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)和(he)(he)兩個(ge)軸套(tao)組成(cheng)。膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)被用銷釘緊(jin)固(gu)在軸套(tao)上一般不會(hui)松動(dong)或(huo)引起膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)和(he)(he)軸套(tao)之間的(de)(de)反沖。有一些生產商(shang)提供(gong)兩個(ge)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)的(de)(de)，也有提供(gong)三(san)個(ge)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)的(de)(de)，中間有一個(ge)或(huo)兩個(ge)剛性(xing)元件，兩邊 再連在軸套(tao)上。單(dan)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)和(he)(he)雙膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)的(de)(de)不同之處(chu)是處(chu)理各種偏(pian)(pian)差(cha)能(neng)力(li)的(de)(de)不同，鑒于(yu)其需要膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)能(neng)復雜的(de)(de)彎曲，所以(yi)單(dan)膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)不太適應偏(pian)(pian)心。而雙膜(mo)(mo)(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)可以(yi)同時曲向不同的(de)(de)方向，以(yi)此來(lai)補(bu)償偏(pian)(pian)心。