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(chuan)遞扭(niu)矩大(da)，使(shi)用(yong)壽命長，免維護，耐(nai)高(gao)(gao)溫，耐(nai)酸堿防腐蝕(shi)(shi)，適用(yong)于(yu)高(gao)(gao)溫高(gao)(gao)速(su)及(ji)有腐蝕(shi)(shi)工況環(huan)境的軸系(xi)傳(chuan)動。

膜(mo)片(pian)型聯(lian)(lian)軸器(qi)能補償主動(dong)機(ji)(ji)與從動(dong)機(ji)(ji)之間(jian)由于制造誤差、安裝(zhuang)誤差、承(cheng)載(zai)變形以及(ji)溫升變化的(de)影響(xiang)等所引起(qi)的(de)軸向(xiang)、徑向(xiang)和角向(xiang)偏(pian)移(yi)。膜(mo)片(pian)彈(dan)性聯(lian)(lian)軸器(qi)屬金屬彈(dan)性元件撓性聯(lian)(lian)軸器(qi)，其依靠金屬聯(lian)(lian)軸器(qi)膜(mo)片(pian)來聯(lian)(lian)接主、從動(dong)機(ji)(ji)傳遞扭矩(ju)，具有彈(dan)性減振、無噪聲、不(bu)需潤滑的(de)優(you)點。

膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)(qi)至少由一(yi)個(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)和兩個(ge)軸(zhou)(zhou)(zhou)套組成(cheng)。膜(mo)(mo)片(pian)(pian)(pian)(pian)被用銷釘緊(jin)固在軸(zhou)(zhou)(zhou)套上一(yi)般不(bu)會松(song)動或(huo)引起(qi)膜(mo)(mo)片(pian)(pian)(pian)(pian)和軸(zhou)(zhou)(zhou)套之(zhi)間(jian)的(de)反沖。有(you)一(yi)些(xie)生(sheng)產商提供兩個(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)的(de)，也有(you)提供三個(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)的(de)，中間(jian)有(you)一(yi)個(ge)或(huo)兩個(ge)剛性元件，兩邊 再(zai)連在軸(zhou)(zhou)(zhou)套上。單膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)(qi)和雙(shuang)膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)(qi)的(de)不(bu)同(tong)之(zhi)處是處理各種(zhong)偏差能力的(de)不(bu)同(tong)，鑒(jian)于其需要膜(mo)(mo)片(pian)(pian)(pian)(pian)能復雜的(de)彎曲，所以單膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)(qi)不(bu)太適(shi)應偏心。而雙(shuang)膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)(qi)可以同(tong)時曲向不(bu)同(tong)的(de)方向，以此(ci)來補償(chang)偏心。