星形(xing)聯(lian)(lian)軸(zhou)器高速(su)運轉時(shi)由于受離心力(li)的(de)(de)作用而產生的(de)(de)徑(jing)向運動將加速(su)其磨損，加設外(wai)殼(ke)。除了(le)能防塵存油(you)外(wai)，減薄量(liang)不(bu)足可(ke)能會造成(cheng)(cheng)干涉(she)，減薄量(liang)過(guo)大會削弱齒(chi)(chi)的(de)(de)強(qiang)度，且會側隙很大。外(wai)齒(chi)(chi)的(de)(de)接觸條(tiao)件得到改善，避免了(le)在角位移條(tiao)件下(xia)直齒(chi)(chi)齒(chi)(chi)端棱邊擠壓，應力(li)集(ji)中(zhong)的(de)(de)弊端，同時(shi)改善了(le)齒(chi)(chi)面摩擦、磨損狀況(kuang)，降低了(le)噪聲(sheng)，維修周期長(chang)。星形(xing)彈(dan)性(xing)(xing)聯(lian)(lian)軸(zhou)器外(wai)齒(chi)(chi)套齒(chi)(chi)端呈喇(la)叭形(xing)狀，故不(bu)宜在高速(su)和(he)有(you)沖擊載荷情況(kuang)下(xia)使用，也不(bu)宜用于立軸(zhou)的(de)(de)聯(lian)(lian)接。星型(xing)彈(dan)性(xing)(xing)聯(lian)(lian)軸(zhou)器整體結構(gou)設計(ji)時(shi)，要充分(fen)注意齒(chi)(chi)面與(yu)滾子之間的(de)(de)潤滑(hua)及防塵，還有(you)安全(quan)防護作用。因為鏈(lian)條(tiao)萬一破斷(duan)，可(ke)能造成(cheng)(cheng)人(ren)身事(shi)故。鼓度曲線(xian)曲率(lv)半徑(jing)與(yu)內齒(chi)(chi)單側減薄量(liang)成(cheng)(cheng)正比，即它與(yu)齒(chi)(chi)的(de)(de)嚙合間隙有(you)關，使內、外(wai)齒(chi)(chi)裝拆(chai)十分(fen)方便。

星(xing)型(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)有(you)時被誤(wu)認為是梅花聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)，他們(men)安裝后的(de)(de)(de)外形(xing)幾乎相(xiang)(xiang)似，但是同(tong)(tong)等型(xing)號(hao)下(xia)，星(xing)形(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)承(cheng)受的(de)(de)(de)扭力(li)更大，相(xiang)(xiang)對(dui)梅花聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)，它的(de)(de)(de)內孔和外形(xing)可以做到更小。星(xing)形(xing)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)聚(ju)氨(an)(an)脂(zhi)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)體(ti)由(you)凸(tu)形(xing)爪(zhua)塊限(xian)制，聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)是以工(gong)(gong)程塑料(liao)(liao)(liao)作(zuo)(zuo)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)元件，適用于(yu)聯(lian)(lian)接兩(liang)(liang)同(tong)(tong)軸(zhou)(zhou)線的(de)(de)(de)傳(chuan)(chuan)動軸(zhou)(zhou)系，具(ju)有(you)補(bu)償兩(liang)(liang)軸(zhou)(zhou)相(xiang)(xiang)對(dui)偏移、緩(huan)沖(chong)、減(jian)震(zhen)、耐磨(mo)性(xing)(xing)(xing)能，適應(ying)場合普(pu)遍 ，傳(chuan)(chuan)遞(di)轉矩(ju)20-35000.N.M,工(gong)(gong)作(zuo)(zuo)溫度(du)-35-+80攝氏度(du)。星(xing)型(xing)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)中的(de)(de)(de)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)元件是工(gong)(gong)程塑料(liao)(liao)(liao)，由(you)于(yu)該工(gong)(gong)程塑料(liao)(liao)(liao)具(ju)有(you)良好的(de)(de)(de)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)、緩(huan)沖(chong)性(xing)(xing)(xing)、減(jian)震(zhen)性(xing)(xing)(xing)、耐磨(mo)性(xing)(xing)(xing)，因此能很好的(de)(de)(de)補(bu)償兩(liang)(liang)傳(chuan)(chuan)動軸(zhou)(zhou)系之間的(de)(de)(de)各(ge)種位(wei)移.星(xing)形(xing)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)的(de)(de)(de)聚(ju)氨(an)(an)脂(zhi)彈(dan)(dan)(dan)(dan)性(xing)(xing)(xing)體(ti)由(you)凸(tu)形(xing)爪(zhua)塊限(xian)制。特(te)點：預應(ying)力(li)下(xia)無齒(chi)隙的(de)(de)(de)連接，用于(yu)主軸(zhou)(zhou)傳(chuan)(chuan)動、升降平臺和機床等。