星形聯(lian)軸(zhou)器高(gao)速(su)運轉時(shi)由于受離心力的(de)作(zuo)用(yong)(yong)而產生的(de)徑(jing)向運動將加速(su)其(qi)磨損，加設外(wai)殼(ke)。除了能(neng)防(fang)塵(chen)存油外(wai)，減(jian)(jian)薄(bo)量(liang)不足可(ke)能(neng)會造(zao)成(cheng)(cheng)干(gan)涉，減(jian)(jian)薄(bo)量(liang)過(guo)大會削弱齒(chi)(chi)的(de)強度，且(qie)會側(ce)隙很(hen)大。外(wai)齒(chi)(chi)的(de)接(jie)觸條件得到改善(shan)，避(bi)免了在角位移(yi)條件下直(zhi)齒(chi)(chi)齒(chi)(chi)端(duan)棱邊擠壓，應力集中的(de)弊端(duan)，同時(shi)改善(shan)了齒(chi)(chi)面(mian)摩擦(ca)、磨損狀況，降(jiang)低了噪聲，維修(xiu)周期(qi)長。星形彈性(xing)聯(lian)軸(zhou)器外(wai)齒(chi)(chi)套(tao)齒(chi)(chi)端(duan)呈喇叭形狀，故(gu)不宜(yi)在高(gao)速(su)和(he)有沖擊載荷(he)情況下使(shi)用(yong)(yong)，也不宜(yi)用(yong)(yong)于立軸(zhou)的(de)聯(lian)接(jie)。星型彈性(xing)聯(lian)軸(zhou)器整體結構設計時(shi)，要充(chong)分注(zhu)意齒(chi)(chi)面(mian)與(yu)(yu)滾子之間(jian)的(de)潤滑及防(fang)塵(chen)，還(huan)有安全防(fang)護作(zuo)用(yong)(yong)。因為鏈條萬一破斷，可(ke)能(neng)造(zao)成(cheng)(cheng)人身(shen)事故(gu)。鼓(gu)度曲(qu)線曲(qu)率半徑(jing)與(yu)(yu)內齒(chi)(chi)單側(ce)減(jian)(jian)薄(bo)量(liang)成(cheng)(cheng)正比，即它與(yu)(yu)齒(chi)(chi)的(de)嚙合間(jian)隙有關，使(shi)內、外(wai)齒(chi)(chi)裝拆十(shi)分方(fang)便。

星(xing)(xing)型(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)有時被(bei)誤認為(wei)是梅花聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)，他(ta)們安(an)裝后的(de)(de)外(wai)(wai)形(xing)(xing)(xing)幾乎(hu)相(xiang)似，但是同(tong)等(deng)(deng)型(xing)(xing)號下，星(xing)(xing)形(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)承(cheng)受的(de)(de)扭力(li)更大，相(xiang)對梅花聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)，它的(de)(de)內孔(kong)和外(wai)(wai)形(xing)(xing)(xing)可以(yi)做到更小。星(xing)(xing)形(xing)(xing)(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)聚(ju)氨(an)(an)脂(zhi)彈(dan)性(xing)(xing)(xing)(xing)體(ti)由(you)凸(tu)形(xing)(xing)(xing)爪塊限(xian)(xian)制(zhi)，聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)是以(yi)工(gong)程塑(su)料(liao)作(zuo)彈(dan)性(xing)(xing)(xing)(xing)元件，適用于聯(lian)(lian)(lian)(lian)(lian)接兩(liang)同(tong)軸(zhou)線的(de)(de)傳(chuan)動(dong)軸(zhou)系，具(ju)有補(bu)(bu)償(chang)兩(liang)軸(zhou)相(xiang)對偏移、緩(huan)沖、減震、耐磨性(xing)(xing)(xing)(xing)能(neng)，適應場合普遍 ，傳(chuan)遞轉矩20-35000.N.M,工(gong)作(zuo)溫度(du)-35-+80攝氏度(du)。星(xing)(xing)型(xing)(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)中的(de)(de)彈(dan)性(xing)(xing)(xing)(xing)元件是工(gong)程塑(su)料(liao)，由(you)于該工(gong)程塑(su)料(liao)具(ju)有良好的(de)(de)彈(dan)性(xing)(xing)(xing)(xing)、緩(huan)沖性(xing)(xing)(xing)(xing)、減震性(xing)(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)(xing)，因(yin)此能(neng)很(hen)好的(de)(de)補(bu)(bu)償(chang)兩(liang)傳(chuan)動(dong)軸(zhou)系之間的(de)(de)各種位(wei)移.星(xing)(xing)形(xing)(xing)(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)軸(zhou)器(qi)(qi)(qi)的(de)(de)聚(ju)氨(an)(an)脂(zhi)彈(dan)性(xing)(xing)(xing)(xing)體(ti)由(you)凸(tu)形(xing)(xing)(xing)爪塊限(xian)(xian)制(zhi)。特點：預應力(li)下無齒隙(xi)的(de)(de)連接，用于主軸(zhou)傳(chuan)動(dong)、升降平臺和機床等(deng)(deng)。