星形(xing)(xing)聯軸(zhou)器高速運(yun)轉時由于受(shou)離心(xin)力(li)的(de)作用(yong)而產生(sheng)的(de)徑向(xiang)運(yun)動將加(jia)速其磨損，加(jia)設外殼。除了(le)能防(fang)塵存油(you)外，減薄量不足可能會(hui)(hui)造(zao)成干涉(she)，減薄量過(guo)大會(hui)(hui)削弱齒(chi)(chi)的(de)強度(du)，且會(hui)(hui)側隙(xi)(xi)很大。外齒(chi)(chi)的(de)接(jie)觸條件(jian)得到改善，避免了(le)在(zai)角位移條件(jian)下(xia)直(zhi)齒(chi)(chi)齒(chi)(chi)端(duan)棱邊擠壓，應力(li)集中的(de)弊端(duan)，同(tong)時改善了(le)齒(chi)(chi)面摩擦、磨損狀(zhuang)況，降(jiang)低了(le)噪聲(sheng)，維修周(zhou)期長(chang)。星形(xing)(xing)彈性聯軸(zhou)器外齒(chi)(chi)套齒(chi)(chi)端(duan)呈(cheng)喇叭形(xing)(xing)狀(zhuang)，故(gu)不宜在(zai)高速和有(you)(you)沖(chong)擊(ji)載荷情況下(xia)使用(yong)，也不宜用(yong)于立軸(zhou)的(de)聯接(jie)。星型彈性聯軸(zhou)器整體結構設計時，要充分注意齒(chi)(chi)面與(yu)滾子之間(jian)的(de)潤滑及防(fang)塵，還有(you)(you)安全防(fang)護作用(yong)。因為鏈條萬一破斷，可能造(zao)成人身事故(gu)。鼓度(du)曲線曲率半(ban)徑與(yu)內(nei)齒(chi)(chi)單側減薄量成正(zheng)比，即它(ta)與(yu)齒(chi)(chi)的(de)嚙合間(jian)隙(xi)(xi)有(you)(you)關，使內(nei)、外齒(chi)(chi)裝拆(chai)十分方便。

星(xing)型(xing)(xing)聯(lian)(lian)軸(zhou)器(qi)有時(shi)被誤(wu)認為(wei)是梅(mei)花聯(lian)(lian)軸(zhou)器(qi)，他們(men)安裝后的(de)(de)(de)外(wai)形(xing)幾乎相似，但是同(tong)等型(xing)(xing)號下，星(xing)形(xing)聯(lian)(lian)軸(zhou)器(qi)承受的(de)(de)(de)扭力(li)更(geng)(geng)大，相對(dui)梅(mei)花聯(lian)(lian)軸(zhou)器(qi)，它的(de)(de)(de)內孔和(he)外(wai)形(xing)可以做到更(geng)(geng)小。星(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)器(qi)聚(ju)氨(an)脂(zhi)彈(dan)性(xing)(xing)(xing)(xing)體由(you)凸(tu)形(xing)爪塊(kuai)限制，聯(lian)(lian)軸(zhou)器(qi)是以工(gong)程塑(su)(su)料(liao)作彈(dan)性(xing)(xing)(xing)(xing)元件，適(shi)用于聯(lian)(lian)接兩(liang)同(tong)軸(zhou)線的(de)(de)(de)傳動軸(zhou)系，具(ju)有補(bu)償(chang)兩(liang)軸(zhou)相對(dui)偏(pian)移、緩(huan)(huan)沖(chong)、減震、耐磨性(xing)(xing)(xing)(xing)能，適(shi)應(ying)場合(he)普遍 ，傳遞轉矩20-35000.N.M,工(gong)作溫度-35-+80攝氏度。星(xing)型(xing)(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)器(qi)中的(de)(de)(de)彈(dan)性(xing)(xing)(xing)(xing)元件是工(gong)程塑(su)(su)料(liao)，由(you)于該(gai)工(gong)程塑(su)(su)料(liao)具(ju)有良(liang)好的(de)(de)(de)彈(dan)性(xing)(xing)(xing)(xing)、緩(huan)(huan)沖(chong)性(xing)(xing)(xing)(xing)、減震性(xing)(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)(xing)，因此能很好的(de)(de)(de)補(bu)償(chang)兩(liang)傳動軸(zhou)系之間(jian)的(de)(de)(de)各種位移.星(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)器(qi)的(de)(de)(de)聚(ju)氨(an)脂(zhi)彈(dan)性(xing)(xing)(xing)(xing)體由(you)凸(tu)形(xing)爪塊(kuai)限制。特(te)點：預應(ying)力(li)下無(wu)齒隙(xi)的(de)(de)(de)連(lian)接，用于主軸(zhou)傳動、升降平臺和(he)機床等。