星(xing)(xing)形聯軸器(qi)高(gao)速運(yun)轉時(shi)由于受離(li)心力(li)(li)的作(zuo)用(yong)而產生(sheng)的徑向運(yun)動將加速其磨損，加設外(wai)殼(ke)。除了能防塵(chen)存油外(wai)，減(jian)薄(bo)量(liang)不(bu)足可能會(hui)造成(cheng)(cheng)干涉，減(jian)薄(bo)量(liang)過大會(hui)削弱齒(chi)(chi)(chi)的強(qiang)度，且(qie)會(hui)側隙(xi)很大。外(wai)齒(chi)(chi)(chi)的接觸條(tiao)(tiao)件(jian)得到(dao)改善(shan)，避免了在角位移條(tiao)(tiao)件(jian)下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端棱邊擠壓，應力(li)(li)集(ji)中的弊(bi)端，同時(shi)改善(shan)了齒(chi)(chi)(chi)面摩擦、磨損狀況，降低(di)了噪聲，維修(xiu)周(zhou)期長。星(xing)(xing)形彈性聯軸器(qi)外(wai)齒(chi)(chi)(chi)套齒(chi)(chi)(chi)端呈喇叭(ba)形狀，故不(bu)宜(yi)在高(gao)速和(he)有(you)沖擊(ji)載荷情況下使(shi)用(yong)，也不(bu)宜(yi)用(yong)于立(li)軸的聯接。星(xing)(xing)型彈性聯軸器(qi)整體結(jie)構設計(ji)時(shi)，要充分注意齒(chi)(chi)(chi)面與滾子之(zhi)間的潤滑及防塵(chen)，還有(you)安全(quan)防護作(zuo)用(yong)。因為鏈條(tiao)(tiao)萬一破斷，可能造成(cheng)(cheng)人身事故。鼓度曲(qu)(qu)線曲(qu)(qu)率半徑與內(nei)齒(chi)(chi)(chi)單側減(jian)薄(bo)量(liang)成(cheng)(cheng)正比，即它與齒(chi)(chi)(chi)的嚙合間隙(xi)有(you)關，使(shi)內(nei)、外(wai)齒(chi)(chi)(chi)裝拆十分方便。

星型(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)有時被誤認(ren)為是(shi)梅花(hua)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)，他們安裝后的外形(xing)(xing)(xing)幾乎相(xiang)(xiang)似，但是(shi)同等(deng)型(xing)(xing)號下(xia)，星形(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)承受(shou)的扭力更大，相(xiang)(xiang)對(dui)梅花(hua)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)，它(ta)的內孔和外形(xing)(xing)(xing)可以做到(dao)更小。星形(xing)(xing)(xing)彈(dan)性(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)聚氨(an)脂(zhi)彈(dan)性(xing)(xing)體由(you)凸(tu)形(xing)(xing)(xing)爪塊(kuai)限制，聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)是(shi)以工程(cheng)塑料作(zuo)彈(dan)性(xing)(xing)元(yuan)件，適(shi)用(yong)(yong)于聯(lian)(lian)(lian)接兩(liang)同軸(zhou)(zhou)線的傳(chuan)(chuan)動軸(zhou)(zhou)系，具有補償兩(liang)軸(zhou)(zhou)相(xiang)(xiang)對(dui)偏移、緩沖、減(jian)震(zhen)、耐磨性(xing)(xing)能(neng)，適(shi)應場(chang)合(he)普遍 ，傳(chuan)(chuan)遞轉(zhuan)矩20-35000.N.M,工作(zuo)溫度(du)-35-+80攝氏度(du)。星型(xing)(xing)彈(dan)性(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)中的彈(dan)性(xing)(xing)元(yuan)件是(shi)工程(cheng)塑料，由(you)于該工程(cheng)塑料具有良(liang)好的彈(dan)性(xing)(xing)、緩沖性(xing)(xing)、減(jian)震(zhen)性(xing)(xing)、耐磨性(xing)(xing)，因此能(neng)很好的補償兩(liang)傳(chuan)(chuan)動軸(zhou)(zhou)系之間的各(ge)種(zhong)位移.星形(xing)(xing)(xing)彈(dan)性(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)的聚氨(an)脂(zhi)彈(dan)性(xing)(xing)體由(you)凸(tu)形(xing)(xing)(xing)爪塊(kuai)限制。特(te)點(dian)：預應力下(xia)無(wu)齒隙的連接，用(yong)(yong)于主軸(zhou)(zhou)傳(chuan)(chuan)動、升降平(ping)臺和機床等(deng)。