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(jie)構緊(jin)湊(cou)，傳(chuan)遞扭矩大，使用壽命(ming)長，免維護(hu)，耐高(gao)溫，耐酸堿防腐(fu)蝕(shi)，適(shi)用于高(gao)溫高(gao)速及有(you)腐(fu)蝕(shi)工(gong)況環境的軸系傳(chuan)動。

膜片(pian)(pian)型聯軸(zhou)(zhou)器(qi)能補(bu)償主動(dong)機與從(cong)動(dong)機之(zhi)間由于(yu)制造誤差、安裝誤差、承載變(bian)(bian)形(xing)以及溫(wen)升變(bian)(bian)化的影響等所引起的軸(zhou)(zhou)向、徑向和(he)角向偏(pian)移。膜片(pian)(pian)彈(dan)(dan)性聯軸(zhou)(zhou)器(qi)屬(shu)金(jin)屬(shu)彈(dan)(dan)性元件撓性聯軸(zhou)(zhou)器(qi)，其依靠金(jin)屬(shu)聯軸(zhou)(zhou)器(qi)膜片(pian)(pian)來(lai)聯接主、從(cong)動(dong)機傳(chuan)遞扭矩，具有彈(dan)(dan)性減振、無噪聲、不需潤滑的優點。

膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器至少由(you)一(yi)個(ge)膜(mo)片(pian)(pian)(pian)(pian)和兩(liang)(liang)個(ge)軸(zhou)套(tao)(tao)組成。膜(mo)片(pian)(pian)(pian)(pian)被用銷釘緊(jin)固在軸(zhou)套(tao)(tao)上一(yi)般不(bu)(bu)(bu)會松動或(huo)引(yin)起(qi)膜(mo)片(pian)(pian)(pian)(pian)和軸(zhou)套(tao)(tao)之間(jian)的(de)反沖。有一(yi)些生產商(shang)提供兩(liang)(liang)個(ge)膜(mo)片(pian)(pian)(pian)(pian)的(de)，也(ye)有提供三個(ge)膜(mo)片(pian)(pian)(pian)(pian)的(de)，中(zhong)間(jian)有一(yi)個(ge)或(huo)兩(liang)(liang)個(ge)剛性元(yuan)件，兩(liang)(liang)邊 再連在軸(zhou)套(tao)(tao)上。單(dan)膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器和雙膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器的(de)不(bu)(bu)(bu)同(tong)(tong)之處是處理各種偏差(cha)能力的(de)不(bu)(bu)(bu)同(tong)(tong)，鑒于其需要(yao)膜(mo)片(pian)(pian)(pian)(pian)能復(fu)雜的(de)彎曲，所以單(dan)膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器不(bu)(bu)(bu)太適應偏心。而雙膜(mo)片(pian)(pian)(pian)(pian)聯(lian)軸(zhou)器可(ke)以同(tong)(tong)時曲向不(bu)(bu)(bu)同(tong)(tong)的(de)方向，以此來補償偏心。