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，使用壽命長(chang)，免維護(hu)，耐高(gao)溫(wen)(wen)，耐酸(suan)堿防腐蝕(shi)，適用于高(gao)溫(wen)(wen)高(gao)速及有腐蝕(shi)工(gong)況環境的軸系傳動。

膜(mo)片型聯(lian)軸(zhou)器(qi)能補(bu)償主動機(ji)與從動機(ji)之間(jian)由于(yu)制造誤差、安裝(zhuang)誤差、承(cheng)載變(bian)形以及溫升變(bian)化的(de)影響等所引起(qi)的(de)軸(zhou)向(xiang)、徑向(xiang)和角向(xiang)偏(pian)移。膜(mo)片彈(dan)性(xing)聯(lian)軸(zhou)器(qi)屬金(jin)屬彈(dan)性(xing)元件撓性(xing)聯(lian)軸(zhou)器(qi)，其依靠金(jin)屬聯(lian)軸(zhou)器(qi)膜(mo)片來(lai)聯(lian)接主、從動機(ji)傳遞扭矩，具有彈(dan)性(xing)減振、無(wu)噪聲、不需潤滑的(de)優點(dian)。

膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)至少由一(yi)(yi)個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)兩個(ge)(ge)軸(zhou)(zhou)套組成(cheng)。膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)被(bei)用銷釘(ding)緊(jin)固在軸(zhou)(zhou)套上一(yi)(yi)般不(bu)會松動或引起膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)軸(zhou)(zhou)套之間的(de)反沖。有一(yi)(yi)些生產商(shang)提(ti)供兩個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)，也有提(ti)供三個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的(de)，中間有一(yi)(yi)個(ge)(ge)或兩個(ge)(ge)剛性元(yuan)件，兩邊(bian) 再連在軸(zhou)(zhou)套上。單膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)和(he)雙(shuang)(shuang)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)的(de)不(bu)同(tong)之處是處理(li)各(ge)種(zhong)偏(pian)差能力(li)的(de)不(bu)同(tong)，鑒于(yu)其需要膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)能復雜的(de)彎(wan)曲，所以(yi)單膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)不(bu)太適應偏(pian)心(xin)。而(er)雙(shuang)(shuang)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器(qi)(qi)可以(yi)同(tong)時曲向不(bu)同(tong)的(de)方向，以(yi)此(ci)來補(bu)償偏(pian)心(xin)。