星形聯軸器(qi)高(gao)(gao)速運(yun)轉時(shi)由于受(shou)離心力的(de)(de)作用(yong)而產生的(de)(de)徑向運(yun)動將加(jia)速其磨(mo)損(sun)，加(jia)設外(wai)殼。除了(le)能(neng)防(fang)塵存油外(wai)，減(jian)(jian)薄(bo)量(liang)(liang)(liang)不足可(ke)能(neng)會造成干涉，減(jian)(jian)薄(bo)量(liang)(liang)(liang)過大會削(xue)弱齒(chi)(chi)(chi)的(de)(de)強度(du)，且(qie)會側隙(xi)很大。外(wai)齒(chi)(chi)(chi)的(de)(de)接觸條(tiao)件得到改善，避免了(le)在(zai)角位移條(tiao)件下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端(duan)(duan)棱邊(bian)擠壓，應力集中的(de)(de)弊(bi)端(duan)(duan)，同時(shi)改善了(le)齒(chi)(chi)(chi)面(mian)摩(mo)擦、磨(mo)損(sun)狀(zhuang)況，降低了(le)噪聲，維修周期長。星形彈(dan)(dan)性聯軸器(qi)外(wai)齒(chi)(chi)(chi)套齒(chi)(chi)(chi)端(duan)(duan)呈(cheng)喇叭形狀(zhuang)，故不宜(yi)在(zai)高(gao)(gao)速和有(you)沖擊載荷情(qing)況下使(shi)用(yong)，也不宜(yi)用(yong)于立(li)軸的(de)(de)聯接。星型彈(dan)(dan)性聯軸器(qi)整體(ti)結構(gou)設計(ji)時(shi)，要(yao)充(chong)分注意齒(chi)(chi)(chi)面(mian)與滾(gun)子(zi)之間的(de)(de)潤滑及防(fang)塵，還有(you)安(an)全防(fang)護作用(yong)。因為鏈條(tiao)萬一破斷，可(ke)能(neng)造成人身(shen)事故。鼓(gu)度(du)曲線曲率半徑與內齒(chi)(chi)(chi)單側減(jian)(jian)薄(bo)量(liang)(liang)(liang)成正比(bi)，即它與齒(chi)(chi)(chi)的(de)(de)嚙合間隙(xi)有(you)關(guan)，使(shi)內、外(wai)齒(chi)(chi)(chi)裝拆(chai)十分方(fang)便。

星(xing)型(xing)(xing)聯(lian)(lian)軸器(qi)(qi)(qi)有時被誤認為是(shi)梅(mei)花聯(lian)(lian)軸器(qi)(qi)(qi)，他(ta)們安(an)裝后的(de)(de)外(wai)形(xing)幾(ji)乎相(xiang)似，但是(shi)同等型(xing)(xing)號下(xia)，星(xing)形(xing)聯(lian)(lian)軸器(qi)(qi)(qi)承受的(de)(de)扭(niu)力更(geng)大，相(xiang)對(dui)梅(mei)花聯(lian)(lian)軸器(qi)(qi)(qi)，它(ta)的(de)(de)內孔和外(wai)形(xing)可(ke)以做(zuo)到更(geng)小。星(xing)形(xing)彈(dan)性(xing)(xing)(xing)聯(lian)(lian)軸器(qi)(qi)(qi)聚氨脂彈(dan)性(xing)(xing)(xing)體(ti)(ti)由凸形(xing)爪塊限制，聯(lian)(lian)軸器(qi)(qi)(qi)是(shi)以工程塑料(liao)作彈(dan)性(xing)(xing)(xing)元件，適(shi)用于(yu)聯(lian)(lian)接兩(liang)同軸線的(de)(de)傳(chuan)動(dong)軸系(xi)，具(ju)有補償兩(liang)軸相(xiang)對(dui)偏(pian)移(yi)、緩(huan)沖、減(jian)震(zhen)、耐(nai)磨(mo)性(xing)(xing)(xing)能，適(shi)應(ying)場合(he)普遍 ，傳(chuan)遞轉矩20-35000.N.M,工作溫(wen)度-35-+80攝氏度。星(xing)型(xing)(xing)彈(dan)性(xing)(xing)(xing)聯(lian)(lian)軸器(qi)(qi)(qi)中的(de)(de)彈(dan)性(xing)(xing)(xing)元件是(shi)工程塑料(liao)，由于(yu)該工程塑料(liao)具(ju)有良好的(de)(de)彈(dan)性(xing)(xing)(xing)、緩(huan)沖性(xing)(xing)(xing)、減(jian)震(zhen)性(xing)(xing)(xing)、耐(nai)磨(mo)性(xing)(xing)(xing)，因此(ci)能很(hen)好的(de)(de)補償兩(liang)傳(chuan)動(dong)軸系(xi)之(zhi)間的(de)(de)各種位移(yi).星(xing)形(xing)彈(dan)性(xing)(xing)(xing)聯(lian)(lian)軸器(qi)(qi)(qi)的(de)(de)聚氨脂彈(dan)性(xing)(xing)(xing)體(ti)(ti)由凸形(xing)爪塊限制。特點：預(yu)應(ying)力下(xia)無齒隙的(de)(de)連接，用于(yu)主軸傳(chuan)動(dong)、升降(jiang)平臺和機(ji)床等。