星形聯軸(zhou)器(qi)高(gao)(gao)速(su)運轉時由于(yu)受離(li)心力的作用(yong)而產生(sheng)的徑向運動將加速(su)其(qi)磨損，加設(she)外(wai)殼。除了能防塵(chen)存油(you)外(wai)，減(jian)(jian)薄量不足可能會造(zao)成干涉，減(jian)(jian)薄量過大(da)會削弱齒(chi)(chi)(chi)的強度(du)，且會側(ce)(ce)隙(xi)很大(da)。外(wai)齒(chi)(chi)(chi)的接(jie)觸(chu)條(tiao)件(jian)(jian)得到(dao)改善，避免了在角(jiao)位(wei)移條(tiao)件(jian)(jian)下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端棱邊擠壓，應力集(ji)中的弊端，同(tong)時改善了齒(chi)(chi)(chi)面(mian)摩擦、磨損狀況(kuang)，降低(di)了噪聲，維修周(zhou)期長(chang)。星形彈性(xing)聯軸(zhou)器(qi)外(wai)齒(chi)(chi)(chi)套(tao)齒(chi)(chi)(chi)端呈喇叭形狀，故(gu)不宜(yi)在高(gao)(gao)速(su)和有沖擊載荷(he)情況(kuang)下使用(yong)，也不宜(yi)用(yong)于(yu)立軸(zhou)的聯接(jie)。星型彈性(xing)聯軸(zhou)器(qi)整體結構設(she)計時，要(yao)充(chong)分(fen)注意齒(chi)(chi)(chi)面(mian)與滾子之間的潤(run)滑(hua)及防塵(chen)，還有安全(quan)防護作用(yong)。因為鏈條(tiao)萬一破斷(duan)，可能造(zao)成人身(shen)事故(gu)。鼓度(du)曲(qu)線曲(qu)率半徑與內(nei)齒(chi)(chi)(chi)單(dan)側(ce)(ce)減(jian)(jian)薄量成正(zheng)比，即它與齒(chi)(chi)(chi)的嚙合間隙(xi)有關，使內(nei)、外(wai)齒(chi)(chi)(chi)裝拆十分(fen)方便(bian)。

星(xing)(xing)型(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)有(you)(you)時(shi)被誤認為是(shi)梅花(hua)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)，他們安裝后的(de)外形(xing)(xing)(xing)幾乎相似(si)，但(dan)是(shi)同(tong)等型(xing)號(hao)下，星(xing)(xing)形(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)承受的(de)扭力更大，相對(dui)梅花(hua)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)，它(ta)的(de)內(nei)孔和外形(xing)(xing)(xing)可以做到更小。星(xing)(xing)形(xing)(xing)(xing)彈性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)聚氨脂彈性(xing)(xing)(xing)(xing)(xing)體(ti)由(you)凸形(xing)(xing)(xing)爪塊限制，聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)是(shi)以工(gong)程塑(su)料作彈性(xing)(xing)(xing)(xing)(xing)元(yuan)件，適(shi)用于(yu)聯(lian)(lian)(lian)接兩同(tong)軸(zhou)(zhou)(zhou)(zhou)(zhou)線的(de)傳動軸(zhou)(zhou)(zhou)(zhou)(zhou)系，具有(you)(you)補償兩軸(zhou)(zhou)(zhou)(zhou)(zhou)相對(dui)偏移、緩沖、減(jian)震、耐磨性(xing)(xing)(xing)(xing)(xing)能(neng)，適(shi)應場合普遍(bian) ，傳遞轉矩20-35000.N.M,工(gong)作溫(wen)度-35-+80攝氏度。星(xing)(xing)型(xing)彈性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)中的(de)彈性(xing)(xing)(xing)(xing)(xing)元(yuan)件是(shi)工(gong)程塑(su)料，由(you)于(yu)該工(gong)程塑(su)料具有(you)(you)良好(hao)的(de)彈性(xing)(xing)(xing)(xing)(xing)、緩沖性(xing)(xing)(xing)(xing)(xing)、減(jian)震性(xing)(xing)(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)(xing)(xing)，因此(ci)能(neng)很好(hao)的(de)補償兩傳動軸(zhou)(zhou)(zhou)(zhou)(zhou)系之間的(de)各種位移.星(xing)(xing)形(xing)(xing)(xing)彈性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)的(de)聚氨脂彈性(xing)(xing)(xing)(xing)(xing)體(ti)由(you)凸形(xing)(xing)(xing)爪塊限制。特(te)點：預應力下無(wu)齒隙的(de)連接，用于(yu)主(zhu)軸(zhou)(zhou)(zhou)(zhou)(zhou)傳動、升降平臺和機床等。