星(xing)形(xing)聯(lian)(lian)軸(zhou)器高(gao)(gao)速(su)運(yun)轉時由(you)于受離心力的(de)作(zuo)用而產(chan)生的(de)徑(jing)向運(yun)動將加速(su)其磨(mo)損，加設外殼。除了能(neng)防(fang)塵存油(you)外，減(jian)薄量(liang)(liang)不(bu)足(zu)可能(neng)會造成(cheng)干涉，減(jian)薄量(liang)(liang)過(guo)大會削(xue)弱齒(chi)(chi)(chi)(chi)的(de)強度(du)，且會側(ce)(ce)隙很大。外齒(chi)(chi)(chi)(chi)的(de)接觸條(tiao)件得到改善，避免了在角位移條(tiao)件下直齒(chi)(chi)(chi)(chi)齒(chi)(chi)(chi)(chi)端棱邊擠(ji)壓，應力集中的(de)弊端，同時改善了齒(chi)(chi)(chi)(chi)面摩擦、磨(mo)損狀況(kuang)(kuang)，降低(di)了噪聲，維(wei)修周(zhou)期長(chang)。星(xing)形(xing)彈性聯(lian)(lian)軸(zhou)器外齒(chi)(chi)(chi)(chi)套齒(chi)(chi)(chi)(chi)端呈喇叭形(xing)狀，故不(bu)宜在高(gao)(gao)速(su)和有(you)沖擊載荷情況(kuang)(kuang)下使(shi)(shi)用，也不(bu)宜用于立軸(zhou)的(de)聯(lian)(lian)接。星(xing)型(xing)彈性聯(lian)(lian)軸(zhou)器整體(ti)結構設計(ji)時，要充分注意齒(chi)(chi)(chi)(chi)面與滾子之間(jian)的(de)潤滑及防(fang)塵，還有(you)安全防(fang)護作(zuo)用。因(yin)為(wei)鏈條(tiao)萬一破(po)斷，可能(neng)造成(cheng)人身事故。鼓度(du)曲線曲率半徑(jing)與內(nei)齒(chi)(chi)(chi)(chi)單側(ce)(ce)減(jian)薄量(liang)(liang)成(cheng)正(zheng)比，即(ji)它與齒(chi)(chi)(chi)(chi)的(de)嚙(nie)合間(jian)隙有(you)關，使(shi)(shi)內(nei)、外齒(chi)(chi)(chi)(chi)裝(zhuang)拆十(shi)分方(fang)便。

星(xing)型聯(lian)(lian)軸(zhou)(zhou)器有(you)時被誤(wu)認為(wei)是(shi)梅花聯(lian)(lian)軸(zhou)(zhou)器，他們安(an)裝后的外(wai)形(xing)(xing)(xing)幾乎相(xiang)似，但是(shi)同等(deng)型號下，星(xing)形(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器承受的扭(niu)力(li)更大，相(xiang)對梅花聯(lian)(lian)軸(zhou)(zhou)器，它的內孔和外(wai)形(xing)(xing)(xing)可以做到(dao)更小。星(xing)形(xing)(xing)(xing)彈(dan)(dan)性(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器聚(ju)氨脂彈(dan)(dan)性(xing)(xing)(xing)體(ti)由凸形(xing)(xing)(xing)爪(zhua)塊(kuai)限制(zhi)，聯(lian)(lian)軸(zhou)(zhou)器是(shi)以工(gong)程(cheng)(cheng)塑(su)料(liao)作彈(dan)(dan)性(xing)(xing)(xing)元件，適用(yong)于(yu)聯(lian)(lian)接兩(liang)同軸(zhou)(zhou)線的傳動(dong)軸(zhou)(zhou)系，具有(you)補(bu)(bu)償兩(liang)軸(zhou)(zhou)相(xiang)對偏移、緩沖、減震、耐(nai)磨性(xing)(xing)(xing)能，適應場合普遍(bian) ，傳遞(di)轉矩20-35000.N.M,工(gong)作溫度-35-+80攝氏度。星(xing)型彈(dan)(dan)性(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器中的彈(dan)(dan)性(xing)(xing)(xing)元件是(shi)工(gong)程(cheng)(cheng)塑(su)料(liao)，由于(yu)該工(gong)程(cheng)(cheng)塑(su)料(liao)具有(you)良好的彈(dan)(dan)性(xing)(xing)(xing)、緩沖性(xing)(xing)(xing)、減震性(xing)(xing)(xing)、耐(nai)磨性(xing)(xing)(xing)，因(yin)此能很好的補(bu)(bu)償兩(liang)傳動(dong)軸(zhou)(zhou)系之間的各種位移.星(xing)形(xing)(xing)(xing)彈(dan)(dan)性(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器的聚(ju)氨脂彈(dan)(dan)性(xing)(xing)(xing)體(ti)由凸形(xing)(xing)(xing)爪(zhua)塊(kuai)限制(zhi)。特點：預應力(li)下無齒(chi)隙的連接，用(yong)于(yu)主軸(zhou)(zhou)傳動(dong)、升降平臺和機床等(deng)。