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(cou)，傳遞(di)扭矩大，使用壽命長，免維護，耐高(gao)(gao)溫，耐酸(suan)堿(jian)防腐蝕，適用于高(gao)(gao)溫高(gao)(gao)速及有腐蝕工(gong)況環(huan)境(jing)的軸系傳動。

膜片(pian)型聯(lian)軸(zhou)(zhou)器(qi)能補償主動機(ji)(ji)(ji)與從(cong)動機(ji)(ji)(ji)之間(jian)由于制造誤(wu)差(cha)、安裝誤(wu)差(cha)、承載變形以及溫升變化(hua)的(de)影響等所(suo)引起的(de)軸(zhou)(zhou)向(xiang)、徑向(xiang)和(he)角向(xiang)偏(pian)移。膜片(pian)彈(dan)性(xing)(xing)聯(lian)軸(zhou)(zhou)器(qi)屬金屬彈(dan)性(xing)(xing)元件撓(nao)性(xing)(xing)聯(lian)軸(zhou)(zhou)器(qi)，其(qi)依(yi)靠金屬聯(lian)軸(zhou)(zhou)器(qi)膜片(pian)來聯(lian)接主、從(cong)動機(ji)(ji)(ji)傳遞扭矩，具有彈(dan)性(xing)(xing)減振、無噪聲、不需(xu)潤滑的(de)優點。

膜(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)(zhou)器至少由一個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)和(he)(he)兩(liang)個(ge)(ge)軸(zhou)(zhou)(zhou)套(tao)組成。膜(mo)(mo)片(pian)(pian)(pian)(pian)被用銷釘(ding)緊固在(zai)軸(zhou)(zhou)(zhou)套(tao)上(shang)一般不(bu)(bu)會松動或(huo)引(yin)起(qi)膜(mo)(mo)片(pian)(pian)(pian)(pian)和(he)(he)軸(zhou)(zhou)(zhou)套(tao)之(zhi)間(jian)的反沖(chong)。有(you)一些生產商(shang)提供兩(liang)個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)的，也有(you)提供三個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)的，中間(jian)有(you)一個(ge)(ge)或(huo)兩(liang)個(ge)(ge)剛(gang)性元件，兩(liang)邊 再連(lian)在(zai)軸(zhou)(zhou)(zhou)套(tao)上(shang)。單膜(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)(zhou)器和(he)(he)雙膜(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)(zhou)器的不(bu)(bu)同(tong)之(zhi)處(chu)是處(chu)理各(ge)種偏(pian)(pian)差能力的不(bu)(bu)同(tong)，鑒于其需要膜(mo)(mo)片(pian)(pian)(pian)(pian)能復(fu)雜(za)的彎曲，所以單膜(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)(zhou)器不(bu)(bu)太適(shi)應(ying)偏(pian)(pian)心(xin)(xin)。而雙膜(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)(zhou)(zhou)器可以同(tong)時曲向(xiang)不(bu)(bu)同(tong)的方向(xiang)，以此來補償偏(pian)(pian)心(xin)(xin)。