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)遞扭矩大，使用壽命長，免維(wei)護，耐高溫(wen)(wen)，耐酸(suan)堿防腐蝕，適用于高溫(wen)(wen)高速及有腐蝕工(gong)況環(huan)境(jing)的軸系(xi)傳(chuan)動(dong)。

膜片型聯(lian)軸器(qi)能(neng)補(bu)償主動(dong)(dong)機(ji)(ji)與(yu)從動(dong)(dong)機(ji)(ji)之(zhi)間由于制造誤(wu)差、安裝誤(wu)差、承(cheng)載變形以及(ji)溫升變化(hua)的(de)影響等所引起的(de)軸向、徑向和角向偏移(yi)。膜片彈(dan)(dan)(dan)性聯(lian)軸器(qi)屬金屬彈(dan)(dan)(dan)性元件(jian)撓性聯(lian)軸器(qi)，其(qi)依靠(kao)金屬聯(lian)軸器(qi)膜片來聯(lian)接(jie)主、從動(dong)(dong)機(ji)(ji)傳遞扭矩，具有彈(dan)(dan)(dan)性減(jian)振、無噪聲、不需潤滑的(de)優點(dian)。

膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)至少(shao)由一個(ge)(ge)(ge)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)和兩(liang)(liang)個(ge)(ge)(ge)軸(zhou)(zhou)套(tao)組成。膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)被用銷釘緊固在(zai)軸(zhou)(zhou)套(tao)上(shang)一般(ban)不(bu)(bu)會松動或(huo)引起(qi)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)和軸(zhou)(zhou)套(tao)之(zhi)間的(de)(de)反沖。有(you)一些生(sheng)產(chan)商提供兩(liang)(liang)個(ge)(ge)(ge)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)的(de)(de)，也有(you)提供三個(ge)(ge)(ge)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)的(de)(de)，中間有(you)一個(ge)(ge)(ge)或(huo)兩(liang)(liang)個(ge)(ge)(ge)剛性元件，兩(liang)(liang)邊 再連在(zai)軸(zhou)(zhou)套(tao)上(shang)。單(dan)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)和雙膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)的(de)(de)不(bu)(bu)同(tong)之(zhi)處(chu)是處(chu)理各種偏差能力的(de)(de)不(bu)(bu)同(tong)，鑒于其需要膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)能復(fu)雜的(de)(de)彎(wan)曲，所以單(dan)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)不(bu)(bu)太適應偏心。而雙膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)可以同(tong)時曲向(xiang)不(bu)(bu)同(tong)的(de)(de)方向(xiang)，以此(ci)來補償偏心。