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(ju)大，使(shi)用壽命長(chang)，免維護，耐高(gao)溫，耐酸堿防腐(fu)(fu)蝕(shi)(shi)，適用于高(gao)溫高(gao)速及有(you)腐(fu)(fu)蝕(shi)(shi)工況環境的軸系傳動。

膜片(pian)型(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)能補(bu)償主(zhu)動機與從動機之間(jian)由于制(zhi)造(zao)誤(wu)差、安裝誤(wu)差、承載變形(xing)以及溫(wen)升變化的(de)影響等(deng)所引(yin)起的(de)軸(zhou)(zhou)(zhou)向(xiang)(xiang)、徑向(xiang)(xiang)和角向(xiang)(xiang)偏移(yi)。膜片(pian)彈(dan)性(xing)(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)屬(shu)金(jin)屬(shu)彈(dan)性(xing)(xing)元件(jian)撓性(xing)(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)，其依(yi)靠金(jin)屬(shu)聯軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)膜片(pian)來聯接主(zhu)、從動機傳遞扭矩，具有(you)彈(dan)性(xing)(xing)減振、無噪(zao)聲(sheng)、不需潤(run)滑的(de)優(you)點。

膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器至少由一(yi)(yi)個(ge)膜(mo)片(pian)(pian)(pian)和兩(liang)個(ge)軸套組(zu)成。膜(mo)片(pian)(pian)(pian)被用銷釘緊固在(zai)軸套上一(yi)(yi)般不會松動(dong)或(huo)引起膜(mo)片(pian)(pian)(pian)和軸套之間的反沖。有一(yi)(yi)些(xie)生(sheng)產商提供兩(liang)個(ge)膜(mo)片(pian)(pian)(pian)的，也有提供三個(ge)膜(mo)片(pian)(pian)(pian)的，中間有一(yi)(yi)個(ge)或(huo)兩(liang)個(ge)剛性(xing)元(yuan)件，兩(liang)邊 再連在(zai)軸套上。單膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器和雙膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器的不同(tong)(tong)(tong)之處是(shi)處理各種偏差能力的不同(tong)(tong)(tong)，鑒于其需要膜(mo)片(pian)(pian)(pian)能復(fu)雜的彎曲，所以單膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器不太適應偏心。而雙膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器可以同(tong)(tong)(tong)時曲向不同(tong)(tong)(tong)的方向，以此來(lai)補償(chang)偏心。