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(gou)緊湊，傳(chuan)遞扭矩大，使用(yong)壽命(ming)長，免維護，耐(nai)高溫，耐(nai)酸堿防腐蝕，適用(yong)于(yu)高溫高速及有腐蝕工況環境的軸系傳(chuan)動。

膜片型聯(lian)(lian)軸(zhou)(zhou)器能補償(chang)主動(dong)機與從(cong)動(dong)機之間由于制造(zao)誤(wu)差、安裝誤(wu)差、承載變形以及溫升(sheng)變化的(de)影(ying)響等所引起的(de)軸(zhou)(zhou)向(xiang)、徑向(xiang)和(he)角向(xiang)偏移。膜片彈(dan)性(xing)聯(lian)(lian)軸(zhou)(zhou)器屬金屬彈(dan)性(xing)元件撓性(xing)聯(lian)(lian)軸(zhou)(zhou)器，其依靠金屬聯(lian)(lian)軸(zhou)(zhou)器膜片來聯(lian)(lian)接主、從(cong)動(dong)機傳遞扭矩，具有彈(dan)性(xing)減振、無噪聲、不需(xu)潤滑的(de)優點。

膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)至少(shao)由一(yi)個(ge)(ge)膜(mo)片(pian)(pian)(pian)和兩個(ge)(ge)軸套(tao)(tao)組成。膜(mo)片(pian)(pian)(pian)被(bei)用銷釘緊固(gu)在軸套(tao)(tao)上(shang)一(yi)般不(bu)(bu)(bu)會(hui)松(song)動或引起(qi)膜(mo)片(pian)(pian)(pian)和軸套(tao)(tao)之間的(de)(de)(de)(de)反沖。有(you)一(yi)些生(sheng)產商提(ti)供兩個(ge)(ge)膜(mo)片(pian)(pian)(pian)的(de)(de)(de)(de)，也有(you)提(ti)供三個(ge)(ge)膜(mo)片(pian)(pian)(pian)的(de)(de)(de)(de)，中(zhong)間有(you)一(yi)個(ge)(ge)或兩個(ge)(ge)剛性元(yuan)件，兩邊 再連(lian)在軸套(tao)(tao)上(shang)。單(dan)膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)和雙膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)的(de)(de)(de)(de)不(bu)(bu)(bu)同(tong)(tong)之處是處理各種偏差(cha)能(neng)力的(de)(de)(de)(de)不(bu)(bu)(bu)同(tong)(tong)，鑒于其需要膜(mo)片(pian)(pian)(pian)能(neng)復雜的(de)(de)(de)(de)彎(wan)曲，所以單(dan)膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)不(bu)(bu)(bu)太適應偏心。而雙膜(mo)片(pian)(pian)(pian)聯(lian)(lian)軸器(qi)(qi)可(ke)以同(tong)(tong)時(shi)曲向(xiang)不(bu)(bu)(bu)同(tong)(tong)的(de)(de)(de)(de)方向(xiang)，以此(ci)來補(bu)償偏心。