星形(xing)聯(lian)軸(zhou)器(qi)高(gao)速(su)(su)運(yun)轉時(shi)(shi)由(you)于受離心力的(de)作用(yong)而(er)產生的(de)徑向運(yun)動將加速(su)(su)其磨損，加設(she)外(wai)殼。除了(le)能(neng)(neng)防(fang)塵(chen)存(cun)油(you)外(wai)，減薄(bo)量(liang)(liang)不足(zu)可(ke)能(neng)(neng)會造成干涉，減薄(bo)量(liang)(liang)過大(da)(da)會削弱齒(chi)的(de)強度，且會側(ce)隙很大(da)(da)。外(wai)齒(chi)的(de)接觸條(tiao)件(jian)得到改(gai)善，避免了(le)在角位(wei)移條(tiao)件(jian)下(xia)(xia)直齒(chi)齒(chi)端(duan)(duan)棱邊擠壓，應(ying)力集中(zhong)的(de)弊端(duan)(duan)，同時(shi)(shi)改(gai)善了(le)齒(chi)面(mian)摩(mo)擦、磨損狀況，降低了(le)噪(zao)聲，維(wei)修(xiu)周期長。星形(xing)彈性(xing)聯(lian)軸(zhou)器(qi)外(wai)齒(chi)套(tao)齒(chi)端(duan)(duan)呈喇(la)叭形(xing)狀，故(gu)不宜在高(gao)速(su)(su)和有沖擊載(zai)荷情況下(xia)(xia)使用(yong)，也不宜用(yong)于立軸(zhou)的(de)聯(lian)接。星型(xing)彈性(xing)聯(lian)軸(zhou)器(qi)整體(ti)結構設(she)計時(shi)(shi)，要充分注意齒(chi)面(mian)與滾子之間(jian)的(de)潤滑及防(fang)塵(chen)，還有安(an)全防(fang)護作用(yong)。因為(wei)鏈(lian)條(tiao)萬一破斷，可(ke)能(neng)(neng)造成人身事故(gu)。鼓(gu)度曲(qu)線(xian)曲(qu)率半徑與內(nei)齒(chi)單側(ce)減薄(bo)量(liang)(liang)成正(zheng)比，即它與齒(chi)的(de)嚙合(he)間(jian)隙有關，使內(nei)、外(wai)齒(chi)裝拆(chai)十分方便。

星(xing)型聯軸(zhou)器(qi)(qi)有時被誤認為(wei)是(shi)梅(mei)花聯軸(zhou)器(qi)(qi)，他們(men)安裝后的(de)(de)(de)外(wai)(wai)形(xing)幾乎相(xiang)(xiang)似，但是(shi)同等型號下，星(xing)形(xing)聯軸(zhou)器(qi)(qi)承受的(de)(de)(de)扭力(li)更大，相(xiang)(xiang)對梅(mei)花聯軸(zhou)器(qi)(qi)，它的(de)(de)(de)內孔和(he)外(wai)(wai)形(xing)可以(yi)做(zuo)到更小。星(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)聯軸(zhou)器(qi)(qi)聚(ju)氨脂彈(dan)性(xing)(xing)(xing)(xing)體(ti)由凸(tu)形(xing)爪(zhua)塊(kuai)限制，聯軸(zhou)器(qi)(qi)是(shi)以(yi)工(gong)程塑料(liao)作(zuo)(zuo)彈(dan)性(xing)(xing)(xing)(xing)元(yuan)件，適用(yong)于聯接(jie)兩同軸(zhou)線的(de)(de)(de)傳(chuan)(chuan)動(dong)軸(zhou)系(xi)，具有補償(chang)兩軸(zhou)相(xiang)(xiang)對偏移、緩沖(chong)、減震、耐磨性(xing)(xing)(xing)(xing)能，適應(ying)場合普遍 ，傳(chuan)(chuan)遞轉矩20-35000.N.M,工(gong)作(zuo)(zuo)溫度(du)(du)-35-+80攝氏(shi)度(du)(du)。星(xing)型彈(dan)性(xing)(xing)(xing)(xing)聯軸(zhou)器(qi)(qi)中的(de)(de)(de)彈(dan)性(xing)(xing)(xing)(xing)元(yuan)件是(shi)工(gong)程塑料(liao)，由于該工(gong)程塑料(liao)具有良好(hao)(hao)的(de)(de)(de)彈(dan)性(xing)(xing)(xing)(xing)、緩沖(chong)性(xing)(xing)(xing)(xing)、減震性(xing)(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)(xing)，因(yin)此能很好(hao)(hao)的(de)(de)(de)補償(chang)兩傳(chuan)(chuan)動(dong)軸(zhou)系(xi)之間的(de)(de)(de)各種位移.星(xing)形(xing)彈(dan)性(xing)(xing)(xing)(xing)聯軸(zhou)器(qi)(qi)的(de)(de)(de)聚(ju)氨脂彈(dan)性(xing)(xing)(xing)(xing)體(ti)由凸(tu)形(xing)爪(zhua)塊(kuai)限制。特點：預應(ying)力(li)下無齒隙的(de)(de)(de)連接(jie)，用(yong)于主軸(zhou)傳(chuan)(chuan)動(dong)、升降平(ping)臺和(he)機(ji)床等。