星形(xing)聯軸器高速(su)運轉時由于(yu)受離心力的(de)(de)作(zuo)(zuo)用(yong)而產生(sheng)的(de)(de)徑向運動(dong)將加速(su)其磨損，加設(she)(she)外殼。除了能(neng)(neng)防塵(chen)存(cun)油外，減(jian)薄(bo)量不足可能(neng)(neng)會(hui)造成干涉，減(jian)薄(bo)量過大(da)會(hui)削弱齒(chi)(chi)(chi)的(de)(de)強度，且會(hui)側隙很(hen)大(da)。外齒(chi)(chi)(chi)的(de)(de)接觸條(tiao)件得到改善，避免(mian)了在角(jiao)位移(yi)條(tiao)件下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端棱邊擠壓，應(ying)力集中的(de)(de)弊端，同時改善了齒(chi)(chi)(chi)面(mian)(mian)摩擦(ca)、磨損狀況(kuang)(kuang)，降低了噪聲，維修周期長(chang)。星形(xing)彈性聯軸器外齒(chi)(chi)(chi)套(tao)齒(chi)(chi)(chi)端呈(cheng)喇叭(ba)形(xing)狀，故不宜在高速(su)和有(you)(you)沖擊(ji)載荷(he)情況(kuang)(kuang)下使用(yong)，也不宜用(yong)于(yu)立(li)軸的(de)(de)聯接。星型彈性聯軸器整(zheng)體結構設(she)(she)計(ji)時，要充(chong)分注意齒(chi)(chi)(chi)面(mian)(mian)與滾(gun)子之間的(de)(de)潤滑及防塵(chen)，還有(you)(you)安全(quan)防護作(zuo)(zuo)用(yong)。因為鏈條(tiao)萬一破斷，可能(neng)(neng)造成人身事故。鼓度曲(qu)線曲(qu)率半徑與內(nei)齒(chi)(chi)(chi)單側減(jian)薄(bo)量成正比，即它與齒(chi)(chi)(chi)的(de)(de)嚙合間隙有(you)(you)關，使內(nei)、外齒(chi)(chi)(chi)裝拆十分方(fang)便。

星(xing)型(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)有時(shi)被誤(wu)認為(wei)是(shi)(shi)梅花聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)，他們安裝后的(de)(de)外形(xing)(xing)(xing)幾乎相(xiang)似，但是(shi)(shi)同等型(xing)號(hao)下，星(xing)形(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)承受(shou)的(de)(de)扭力更大(da)，相(xiang)對(dui)梅花聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)，它的(de)(de)內孔和(he)外形(xing)(xing)(xing)可以做(zuo)到更小。星(xing)形(xing)(xing)(xing)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)聚氨(an)脂(zhi)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)體由凸形(xing)(xing)(xing)爪塊限(xian)制，聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)是(shi)(shi)以工(gong)程(cheng)塑(su)(su)料作(zuo)(zuo)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)元(yuan)件，適用于(yu)聯(lian)(lian)(lian)接兩(liang)同軸(zhou)(zhou)(zhou)線(xian)的(de)(de)傳(chuan)動軸(zhou)(zhou)(zhou)系，具有補(bu)償兩(liang)軸(zhou)(zhou)(zhou)相(xiang)對(dui)偏移(yi)、緩(huan)沖(chong)、減(jian)震、耐(nai)磨性(xing)(xing)(xing)(xing)(xing)能，適應場合普遍 ，傳(chuan)遞轉矩(ju)20-35000.N.M,工(gong)作(zuo)(zuo)溫度(du)-35-+80攝氏(shi)度(du)。星(xing)型(xing)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)中的(de)(de)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)元(yuan)件是(shi)(shi)工(gong)程(cheng)塑(su)(su)料，由于(yu)該工(gong)程(cheng)塑(su)(su)料具有良好(hao)(hao)的(de)(de)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)、緩(huan)沖(chong)性(xing)(xing)(xing)(xing)(xing)、減(jian)震性(xing)(xing)(xing)(xing)(xing)、耐(nai)磨性(xing)(xing)(xing)(xing)(xing)，因此能很好(hao)(hao)的(de)(de)補(bu)償兩(liang)傳(chuan)動軸(zhou)(zhou)(zhou)系之間的(de)(de)各種位移(yi).星(xing)形(xing)(xing)(xing)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)的(de)(de)聚氨(an)脂(zhi)彈(dan)(dan)性(xing)(xing)(xing)(xing)(xing)體由凸形(xing)(xing)(xing)爪塊限(xian)制。特點：預應力下無(wu)齒隙(xi)的(de)(de)連接，用于(yu)主(zhu)軸(zhou)(zhou)(zhou)傳(chuan)動、升降平(ping)臺和(he)機床等。