星形聯(lian)軸(zhou)(zhou)器(qi)高速(su)運(yun)轉時由于受離心力的(de)作用(yong)(yong)(yong)而產生(sheng)的(de)徑向(xiang)運(yun)動將加速(su)其磨損，加設(she)外(wai)殼(ke)。除了(le)(le)能防塵(chen)(chen)存油外(wai)，減薄(bo)量(liang)(liang)不足可能會(hui)造成干涉，減薄(bo)量(liang)(liang)過大(da)會(hui)削(xue)弱齒(chi)(chi)(chi)(chi)的(de)強度，且會(hui)側(ce)隙很大(da)。外(wai)齒(chi)(chi)(chi)(chi)的(de)接觸條件(jian)得到(dao)改(gai)善，避免了(le)(le)在角位移(yi)條件(jian)下直齒(chi)(chi)(chi)(chi)齒(chi)(chi)(chi)(chi)端(duan)(duan)棱邊擠壓，應力集中的(de)弊端(duan)(duan)，同時改(gai)善了(le)(le)齒(chi)(chi)(chi)(chi)面(mian)摩擦(ca)、磨損狀況(kuang)，降低了(le)(le)噪聲，維(wei)修周(zhou)期長。星形彈(dan)性(xing)(xing)聯(lian)軸(zhou)(zhou)器(qi)外(wai)齒(chi)(chi)(chi)(chi)套齒(chi)(chi)(chi)(chi)端(duan)(duan)呈(cheng)喇叭形狀，故不宜在高速(su)和有(you)沖(chong)擊載荷(he)情況(kuang)下使用(yong)(yong)(yong)，也不宜用(yong)(yong)(yong)于立軸(zhou)(zhou)的(de)聯(lian)接。星型彈(dan)性(xing)(xing)聯(lian)軸(zhou)(zhou)器(qi)整體結(jie)構設(she)計時，要充分注意齒(chi)(chi)(chi)(chi)面(mian)與(yu)滾子之間的(de)潤滑(hua)及防塵(chen)(chen)，還(huan)有(you)安全防護作用(yong)(yong)(yong)。因為鏈條萬一破斷，可能造成人身事(shi)故。鼓度曲線(xian)曲率半徑與(yu)內齒(chi)(chi)(chi)(chi)單側(ce)減薄(bo)量(liang)(liang)成正比，即它與(yu)齒(chi)(chi)(chi)(chi)的(de)嚙(nie)合間隙有(you)關(guan)，使內、外(wai)齒(chi)(chi)(chi)(chi)裝拆十分方便。

星(xing)型(xing)(xing)聯(lian)軸(zhou)器(qi)(qi)有時被(bei)誤(wu)認為是梅花(hua)聯(lian)軸(zhou)器(qi)(qi)，他們(men)安(an)裝(zhuang)后的(de)外形(xing)幾乎相似，但(dan)是同等型(xing)(xing)號(hao)下(xia)，星(xing)形(xing)聯(lian)軸(zhou)器(qi)(qi)承受(shou)的(de)扭(niu)力更(geng)大(da)，相對梅花(hua)聯(lian)軸(zhou)器(qi)(qi)，它的(de)內孔和外形(xing)可以(yi)做到(dao)更(geng)小(xiao)。星(xing)形(xing)彈(dan)性(xing)聯(lian)軸(zhou)器(qi)(qi)聚(ju)氨(an)脂彈(dan)性(xing)體由(you)凸形(xing)爪塊(kuai)限(xian)制，聯(lian)軸(zhou)器(qi)(qi)是以(yi)工(gong)(gong)程(cheng)(cheng)塑(su)料作(zuo)彈(dan)性(xing)元(yuan)件(jian)，適用于(yu)聯(lian)接(jie)兩(liang)(liang)同軸(zhou)線的(de)傳(chuan)動(dong)軸(zhou)系，具有補償兩(liang)(liang)軸(zhou)相對偏移、緩(huan)沖(chong)、減(jian)震、耐(nai)磨(mo)性(xing)能，適應(ying)場合普遍 ，傳(chuan)遞(di)轉矩20-35000.N.M,工(gong)(gong)作(zuo)溫度-35-+80攝(she)氏度。星(xing)型(xing)(xing)彈(dan)性(xing)聯(lian)軸(zhou)器(qi)(qi)中的(de)彈(dan)性(xing)元(yuan)件(jian)是工(gong)(gong)程(cheng)(cheng)塑(su)料，由(you)于(yu)該工(gong)(gong)程(cheng)(cheng)塑(su)料具有良好的(de)彈(dan)性(xing)、緩(huan)沖(chong)性(xing)、減(jian)震性(xing)、耐(nai)磨(mo)性(xing)，因此能很好的(de)補償兩(liang)(liang)傳(chuan)動(dong)軸(zhou)系之(zhi)間的(de)各(ge)種(zhong)位移.星(xing)形(xing)彈(dan)性(xing)聯(lian)軸(zhou)器(qi)(qi)的(de)聚(ju)氨(an)脂彈(dan)性(xing)體由(you)凸形(xing)爪塊(kuai)限(xian)制。特點：預應(ying)力下(xia)無齒隙(xi)的(de)連接(jie)，用于(yu)主(zhu)軸(zhou)傳(chuan)動(dong)、升(sheng)降平臺和機床(chuang)等。