星(xing)形(xing)聯(lian)軸(zhou)(zhou)器(qi)高(gao)速運(yun)轉(zhuan)時(shi)(shi)由于(yu)(yu)受離心(xin)力(li)的(de)作用而(er)產生的(de)徑向(xiang)運(yun)動將加速其磨損，加設(she)外(wai)(wai)殼。除了能(neng)防塵存油(you)外(wai)(wai)，減薄量不(bu)(bu)足可能(neng)會(hui)(hui)造成干涉(she)，減薄量過大會(hui)(hui)削(xue)弱齒(chi)(chi)的(de)強度，且會(hui)(hui)側隙(xi)(xi)很大。外(wai)(wai)齒(chi)(chi)的(de)接觸條件(jian)得到改(gai)善(shan)(shan)，避免了在角(jiao)位移條件(jian)下直齒(chi)(chi)齒(chi)(chi)端(duan)棱邊擠(ji)壓(ya)，應(ying)力(li)集中(zhong)的(de)弊端(duan)，同時(shi)(shi)改(gai)善(shan)(shan)了齒(chi)(chi)面摩擦、磨損狀況(kuang)，降低了噪聲，維修周期長。星(xing)形(xing)彈性(xing)聯(lian)軸(zhou)(zhou)器(qi)外(wai)(wai)齒(chi)(chi)套齒(chi)(chi)端(duan)呈(cheng)喇叭形(xing)狀，故(gu)不(bu)(bu)宜在高(gao)速和(he)有(you)沖擊載荷情況(kuang)下使用，也不(bu)(bu)宜用于(yu)(yu)立軸(zhou)(zhou)的(de)聯(lian)接。星(xing)型彈性(xing)聯(lian)軸(zhou)(zhou)器(qi)整體結構設(she)計時(shi)(shi)，要充(chong)分注(zhu)意齒(chi)(chi)面與(yu)滾(gun)子之間的(de)潤滑(hua)及(ji)防塵，還有(you)安全防護作用。因為鏈(lian)條萬一破斷，可能(neng)造成人身事故(gu)。鼓度曲線曲率半徑與(yu)內齒(chi)(chi)單側減薄量成正比，即它(ta)與(yu)齒(chi)(chi)的(de)嚙合間隙(xi)(xi)有(you)關，使內、外(wai)(wai)齒(chi)(chi)裝(zhuang)拆十(shi)分方便(bian)。

星型(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)有時被誤認為是梅(mei)花聯(lian)(lian)軸(zhou)(zhou)器(qi)，他們(men)安裝后(hou)的(de)(de)外形(xing)(xing)幾(ji)乎相(xiang)似(si)，但是同等型(xing)號下，星形(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)承受的(de)(de)扭力(li)更(geng)大，相(xiang)對(dui)(dui)梅(mei)花聯(lian)(lian)軸(zhou)(zhou)器(qi)，它(ta)的(de)(de)內孔和外形(xing)(xing)可以做到更(geng)小。星形(xing)(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)聚(ju)氨脂(zhi)彈(dan)性(xing)(xing)(xing)(xing)體由凸(tu)形(xing)(xing)爪(zhua)塊(kuai)限(xian)制，聯(lian)(lian)軸(zhou)(zhou)器(qi)是以工(gong)程(cheng)(cheng)(cheng)塑(su)料作(zuo)(zuo)彈(dan)性(xing)(xing)(xing)(xing)元件，適(shi)用于聯(lian)(lian)接兩(liang)(liang)同軸(zhou)(zhou)線的(de)(de)傳(chuan)動(dong)軸(zhou)(zhou)系，具有補(bu)償兩(liang)(liang)軸(zhou)(zhou)相(xiang)對(dui)(dui)偏(pian)移、緩(huan)(huan)沖(chong)、減震(zhen)、耐磨性(xing)(xing)(xing)(xing)能(neng)，適(shi)應(ying)場合普遍 ，傳(chuan)遞(di)轉(zhuan)矩20-35000.N.M,工(gong)作(zuo)(zuo)溫度(du)-35-+80攝(she)氏度(du)。星型(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)中的(de)(de)彈(dan)性(xing)(xing)(xing)(xing)元件是工(gong)程(cheng)(cheng)(cheng)塑(su)料，由于該工(gong)程(cheng)(cheng)(cheng)塑(su)料具有良好(hao)(hao)的(de)(de)彈(dan)性(xing)(xing)(xing)(xing)、緩(huan)(huan)沖(chong)性(xing)(xing)(xing)(xing)、減震(zhen)性(xing)(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)(xing)，因此能(neng)很好(hao)(hao)的(de)(de)補(bu)償兩(liang)(liang)傳(chuan)動(dong)軸(zhou)(zhou)系之間的(de)(de)各種位移.星形(xing)(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)聚(ju)氨脂(zhi)彈(dan)性(xing)(xing)(xing)(xing)體由凸(tu)形(xing)(xing)爪(zhua)塊(kuai)限(xian)制。特點：預應(ying)力(li)下無齒隙的(de)(de)連(lian)接，用于主軸(zhou)(zhou)傳(chuan)動(dong)、升降(jiang)平臺和機床等。