星形聯(lian)軸(zhou)器高速(su)運轉時(shi)(shi)由(you)于(yu)受(shou)離心(xin)力的(de)作用(yong)(yong)而產生的(de)徑向運動(dong)將加速(su)其(qi)磨(mo)損，加設(she)外殼。除了(le)能防塵存油外，減薄(bo)量不足可(ke)能會造(zao)(zao)成(cheng)干(gan)涉，減薄(bo)量過大會削(xue)弱齒(chi)(chi)(chi)(chi)(chi)的(de)強度，且會側隙(xi)很(hen)大。外齒(chi)(chi)(chi)(chi)(chi)的(de)接觸條件得到改善，避免了(le)在(zai)角(jiao)位(wei)移條件下(xia)直齒(chi)(chi)(chi)(chi)(chi)齒(chi)(chi)(chi)(chi)(chi)端(duan)棱邊(bian)擠壓，應力集中的(de)弊端(duan)，同(tong)時(shi)(shi)改善了(le)齒(chi)(chi)(chi)(chi)(chi)面摩擦、磨(mo)損狀(zhuang)況(kuang)，降(jiang)低了(le)噪聲，維修周期長。星形彈性(xing)聯(lian)軸(zhou)器外齒(chi)(chi)(chi)(chi)(chi)套(tao)齒(chi)(chi)(chi)(chi)(chi)端(duan)呈(cheng)喇叭形狀(zhuang)，故(gu)不宜在(zai)高速(su)和有沖擊(ji)載荷情況(kuang)下(xia)使(shi)用(yong)(yong)，也不宜用(yong)(yong)于(yu)立軸(zhou)的(de)聯(lian)接。星型彈性(xing)聯(lian)軸(zhou)器整體結構(gou)設(she)計(ji)時(shi)(shi)，要充分(fen)注意齒(chi)(chi)(chi)(chi)(chi)面與滾子之間的(de)潤(run)滑(hua)及防塵，還有安全防護作用(yong)(yong)。因為鏈條萬(wan)一破(po)斷，可(ke)能造(zao)(zao)成(cheng)人身事故(gu)。鼓(gu)度曲線曲率半徑與內齒(chi)(chi)(chi)(chi)(chi)單側減薄(bo)量成(cheng)正比，即它與齒(chi)(chi)(chi)(chi)(chi)的(de)嚙(nie)合間隙(xi)有關(guan)，使(shi)內、外齒(chi)(chi)(chi)(chi)(chi)裝拆十分(fen)方便。

星(xing)型(xing)聯(lian)(lian)(lian)(lian)軸器有時被誤(wu)認為是梅花聯(lian)(lian)(lian)(lian)軸器，他們安裝后的(de)外形(xing)(xing)(xing)幾(ji)乎相(xiang)(xiang)似，但是同等型(xing)號下，星(xing)形(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)軸器承受(shou)的(de)扭力(li)更(geng)(geng)大，相(xiang)(xiang)對(dui)梅花聯(lian)(lian)(lian)(lian)軸器，它的(de)內孔和外形(xing)(xing)(xing)可以做到更(geng)(geng)小。星(xing)形(xing)(xing)(xing)彈(dan)(dan)性(xing)(xing)聯(lian)(lian)(lian)(lian)軸器聚氨脂彈(dan)(dan)性(xing)(xing)體(ti)由(you)(you)凸形(xing)(xing)(xing)爪塊限(xian)制，聯(lian)(lian)(lian)(lian)軸器是以工(gong)(gong)程(cheng)塑料(liao)作(zuo)彈(dan)(dan)性(xing)(xing)元件，適(shi)用(yong)于聯(lian)(lian)(lian)(lian)接兩(liang)同軸線(xian)的(de)傳(chuan)(chuan)(chuan)動(dong)(dong)軸系，具有補(bu)償(chang)兩(liang)軸相(xiang)(xiang)對(dui)偏(pian)移、緩沖、減震、耐(nai)磨(mo)性(xing)(xing)能(neng)，適(shi)應場合普(pu)遍 ，傳(chuan)(chuan)(chuan)遞轉矩20-35000.N.M,工(gong)(gong)作(zuo)溫度(du)-35-+80攝氏度(du)。星(xing)型(xing)彈(dan)(dan)性(xing)(xing)聯(lian)(lian)(lian)(lian)軸器中(zhong)的(de)彈(dan)(dan)性(xing)(xing)元件是工(gong)(gong)程(cheng)塑料(liao)，由(you)(you)于該工(gong)(gong)程(cheng)塑料(liao)具有良好的(de)彈(dan)(dan)性(xing)(xing)、緩沖性(xing)(xing)、減震性(xing)(xing)、耐(nai)磨(mo)性(xing)(xing)，因此能(neng)很好的(de)補(bu)償(chang)兩(liang)傳(chuan)(chuan)(chuan)動(dong)(dong)軸系之間的(de)各(ge)種位(wei)移.星(xing)形(xing)(xing)(xing)彈(dan)(dan)性(xing)(xing)聯(lian)(lian)(lian)(lian)軸器的(de)聚氨脂彈(dan)(dan)性(xing)(xing)體(ti)由(you)(you)凸形(xing)(xing)(xing)爪塊限(xian)制。特點：預應力(li)下無齒(chi)隙的(de)連(lian)接，用(yong)于主軸傳(chuan)(chuan)(chuan)動(dong)(dong)、升降平臺和機床等。