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(jin)湊，傳遞扭(niu)矩大(da)，使(shi)用(yong)壽命長，免維(wei)護，耐高溫，耐酸堿防(fang)腐蝕，適用(yong)于高溫高速及(ji)有腐蝕工況環境(jing)的軸(zhou)系(xi)傳動。

膜(mo)片型聯軸(zhou)器能補償主(zhu)動機(ji)與(yu)從動機(ji)之(zhi)間由于制造誤(wu)差、安裝誤(wu)差、承載變形(xing)以及溫升變化的影響(xiang)等所引起的軸(zhou)向(xiang)(xiang)、徑向(xiang)(xiang)和(he)角向(xiang)(xiang)偏(pian)移。膜(mo)片彈性(xing)聯軸(zhou)器屬(shu)金屬(shu)彈性(xing)元件撓(nao)性(xing)聯軸(zhou)器，其依靠金屬(shu)聯軸(zhou)器膜(mo)片來聯接主(zhu)、從動機(ji)傳(chuan)遞扭矩，具(ju)有(you)彈性(xing)減振、無噪(zao)聲、不(bu)需潤滑(hua)的優點。

膜(mo)(mo)片(pian)(pian)聯軸(zhou)(zhou)器(qi)至少由一(yi)(yi)個(ge)膜(mo)(mo)片(pian)(pian)和(he)兩個(ge)軸(zhou)(zhou)套組成。膜(mo)(mo)片(pian)(pian)被用銷釘緊固在軸(zhou)(zhou)套上(shang)一(yi)(yi)般不(bu)(bu)(bu)(bu)會松動(dong)或(huo)引起膜(mo)(mo)片(pian)(pian)和(he)軸(zhou)(zhou)套之間(jian)(jian)的反(fan)沖。有一(yi)(yi)些(xie)生產商提(ti)供(gong)(gong)兩個(ge)膜(mo)(mo)片(pian)(pian)的，也(ye)有提(ti)供(gong)(gong)三(san)個(ge)膜(mo)(mo)片(pian)(pian)的，中(zhong)間(jian)(jian)有一(yi)(yi)個(ge)或(huo)兩個(ge)剛性元件(jian)，兩邊 再連(lian)在軸(zhou)(zhou)套上(shang)。單膜(mo)(mo)片(pian)(pian)聯軸(zhou)(zhou)器(qi)和(he)雙(shuang)膜(mo)(mo)片(pian)(pian)聯軸(zhou)(zhou)器(qi)的不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)之處(chu)是(shi)處(chu)理各種偏(pian)差能力的不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)，鑒于其需(xu)要膜(mo)(mo)片(pian)(pian)能復(fu)雜(za)的彎曲，所以單膜(mo)(mo)片(pian)(pian)聯軸(zhou)(zhou)器(qi)不(bu)(bu)(bu)(bu)太適應偏(pian)心(xin)(xin)。而(er)雙(shuang)膜(mo)(mo)片(pian)(pian)聯軸(zhou)(zhou)器(qi)可以同(tong)(tong)(tong)時曲向不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)的方(fang)向，以此(ci)來補償偏(pian)心(xin)(xin)。