星(xing)形(xing)聯(lian)(lian)軸(zhou)器高速運轉時由于受離(li)心(xin)力(li)的(de)(de)(de)作用而產生的(de)(de)(de)徑向運動將加速其磨損，加設外(wai)殼。除了能防(fang)塵存油外(wai)，減薄量不足可能會(hui)造成干涉，減薄量過(guo)大會(hui)削弱齒(chi)的(de)(de)(de)強度(du)，且會(hui)側(ce)隙很大。外(wai)齒(chi)的(de)(de)(de)接觸條(tiao)(tiao)件得到(dao)改(gai)善(shan)，避免了在角位移條(tiao)(tiao)件下(xia)直齒(chi)齒(chi)端棱邊(bian)擠壓，應(ying)力(li)集中的(de)(de)(de)弊端，同時改(gai)善(shan)了齒(chi)面(mian)摩擦、磨損狀況，降低了噪聲(sheng)，維修(xiu)周(zhou)期長。星(xing)形(xing)彈(dan)性聯(lian)(lian)軸(zhou)器外(wai)齒(chi)套(tao)齒(chi)端呈喇叭形(xing)狀，故不宜在高速和有(you)沖擊(ji)載荷情況下(xia)使(shi)用，也不宜用于立軸(zhou)的(de)(de)(de)聯(lian)(lian)接。星(xing)型(xing)彈(dan)性聯(lian)(lian)軸(zhou)器整體結(jie)構設計時，要充分注意(yi)齒(chi)面(mian)與滾子之(zhi)間(jian)的(de)(de)(de)潤(run)滑(hua)及防(fang)塵，還有(you)安全防(fang)護作用。因為鏈條(tiao)(tiao)萬一破斷，可能造成人(ren)身事故。鼓度(du)曲線曲率半徑與內(nei)齒(chi)單側(ce)減薄量成正比，即它(ta)與齒(chi)的(de)(de)(de)嚙合間(jian)隙有(you)關，使(shi)內(nei)、外(wai)齒(chi)裝(zhuang)拆十(shi)分方便。

星(xing)型(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)有(you)時被誤(wu)認為是梅花聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)，他們安(an)裝后(hou)的(de)(de)外形(xing)幾乎相似，但是同等型(xing)號下(xia)，星(xing)形(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)承受(shou)的(de)(de)扭力更(geng)大，相對梅花聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)，它的(de)(de)內孔(kong)和(he)外形(xing)可以做到更(geng)小。星(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)聚(ju)氨脂彈(dan)性(xing)(xing)(xing)(xing)(xing)體由(you)凸(tu)形(xing)爪塊限制，聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)是以工(gong)(gong)程塑料作彈(dan)性(xing)(xing)(xing)(xing)(xing)元件，適用(yong)于聯(lian)(lian)接(jie)(jie)兩(liang)(liang)同軸(zhou)(zhou)(zhou)(zhou)線的(de)(de)傳(chuan)動(dong)軸(zhou)(zhou)(zhou)(zhou)系，具(ju)有(you)補(bu)償(chang)兩(liang)(liang)軸(zhou)(zhou)(zhou)(zhou)相對偏移(yi)(yi)、緩(huan)沖(chong)、減震、耐磨(mo)性(xing)(xing)(xing)(xing)(xing)能，適應(ying)場合普(pu)遍(bian) ，傳(chuan)遞轉矩20-35000.N.M,工(gong)(gong)作溫度-35-+80攝氏(shi)度。星(xing)型(xing)彈(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)中的(de)(de)彈(dan)性(xing)(xing)(xing)(xing)(xing)元件是工(gong)(gong)程塑料，由(you)于該工(gong)(gong)程塑料具(ju)有(you)良好的(de)(de)彈(dan)性(xing)(xing)(xing)(xing)(xing)、緩(huan)沖(chong)性(xing)(xing)(xing)(xing)(xing)、減震性(xing)(xing)(xing)(xing)(xing)、耐磨(mo)性(xing)(xing)(xing)(xing)(xing)，因此能很好的(de)(de)補(bu)償(chang)兩(liang)(liang)傳(chuan)動(dong)軸(zhou)(zhou)(zhou)(zhou)系之(zhi)間(jian)的(de)(de)各種位移(yi)(yi).星(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)的(de)(de)聚(ju)氨脂彈(dan)性(xing)(xing)(xing)(xing)(xing)體由(you)凸(tu)形(xing)爪塊限制。特點：預應(ying)力下(xia)無齒隙的(de)(de)連接(jie)(jie)，用(yong)于主軸(zhou)(zhou)(zhou)(zhou)傳(chuan)動(dong)、升降平臺(tai)和(he)機床等。