星形聯軸(zhou)(zhou)器高速運(yun)轉時由于受離心力(li)的(de)(de)(de)作用(yong)而產生的(de)(de)(de)徑(jing)向運(yun)動(dong)將加速其磨損，加設外(wai)(wai)殼。除了(le)能防(fang)塵存油外(wai)(wai)，減(jian)薄量不(bu)足可能會造成(cheng)干涉(she)，減(jian)薄量過大會削弱齒(chi)(chi)(chi)的(de)(de)(de)強度，且會側隙(xi)很(hen)大。外(wai)(wai)齒(chi)(chi)(chi)的(de)(de)(de)接觸(chu)條(tiao)件(jian)得到改善(shan)，避免了(le)在角位移條(tiao)件(jian)下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端棱邊擠壓，應力(li)集中的(de)(de)(de)弊端，同時改善(shan)了(le)齒(chi)(chi)(chi)面(mian)摩擦、磨損狀(zhuang)況，降低(di)了(le)噪(zao)聲(sheng)，維修周期長。星形彈性聯軸(zhou)(zhou)器外(wai)(wai)齒(chi)(chi)(chi)套齒(chi)(chi)(chi)端呈喇(la)叭(ba)形狀(zhuang)，故(gu)(gu)不(bu)宜(yi)在高速和有沖擊(ji)載荷情況下使用(yong)，也不(bu)宜(yi)用(yong)于立軸(zhou)(zhou)的(de)(de)(de)聯接。星型(xing)彈性聯軸(zhou)(zhou)器整體結構設計時，要充分(fen)注意齒(chi)(chi)(chi)面(mian)與滾子(zi)之間的(de)(de)(de)潤滑及防(fang)塵，還有安全防(fang)護作用(yong)。因(yin)為(wei)鏈條(tiao)萬(wan)一破(po)斷，可能造成(cheng)人身事故(gu)(gu)。鼓度曲線曲率半(ban)徑(jing)與內(nei)齒(chi)(chi)(chi)單側減(jian)薄量成(cheng)正(zheng)比，即它(ta)與齒(chi)(chi)(chi)的(de)(de)(de)嚙合(he)間隙(xi)有關，使內(nei)、外(wai)(wai)齒(chi)(chi)(chi)裝拆十分(fen)方便。

星(xing)型聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)有時被誤認為是(shi)(shi)梅花聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)，他們安裝后的(de)(de)外(wai)形(xing)幾(ji)乎相似，但是(shi)(shi)同(tong)(tong)等型號(hao)下，星(xing)形(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)承受的(de)(de)扭(niu)力更(geng)大，相對梅花聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)，它的(de)(de)內(nei)孔和(he)(he)外(wai)形(xing)可以做到更(geng)小。星(xing)形(xing)彈性(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)聚氨脂(zhi)彈性(xing)(xing)(xing)體(ti)(ti)由(you)凸(tu)(tu)形(xing)爪塊(kuai)限(xian)制，聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)是(shi)(shi)以工(gong)程塑(su)料作彈性(xing)(xing)(xing)元件(jian)，適用于(yu)(yu)聯(lian)(lian)(lian)接(jie)兩同(tong)(tong)軸(zhou)(zhou)(zhou)(zhou)(zhou)線的(de)(de)傳動軸(zhou)(zhou)(zhou)(zhou)(zhou)系，具(ju)有補償兩軸(zhou)(zhou)(zhou)(zhou)(zhou)相對偏移、緩沖、減震、耐(nai)磨(mo)性(xing)(xing)(xing)能(neng)，適應場合普遍 ，傳遞轉矩20-35000.N.M,工(gong)作溫度(du)-35-+80攝(she)氏度(du)。星(xing)型彈性(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)中的(de)(de)彈性(xing)(xing)(xing)元件(jian)是(shi)(shi)工(gong)程塑(su)料，由(you)于(yu)(yu)該工(gong)程塑(su)料具(ju)有良好(hao)的(de)(de)彈性(xing)(xing)(xing)、緩沖性(xing)(xing)(xing)、減震性(xing)(xing)(xing)、耐(nai)磨(mo)性(xing)(xing)(xing)，因(yin)此能(neng)很好(hao)的(de)(de)補償兩傳動軸(zhou)(zhou)(zhou)(zhou)(zhou)系之間的(de)(de)各種位移.星(xing)形(xing)彈性(xing)(xing)(xing)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)的(de)(de)聚氨脂(zhi)彈性(xing)(xing)(xing)體(ti)(ti)由(you)凸(tu)(tu)形(xing)爪塊(kuai)限(xian)制。特點：預應力下無齒(chi)隙的(de)(de)連接(jie)，用于(yu)(yu)主軸(zhou)(zhou)(zhou)(zhou)(zhou)傳動、升降平臺和(he)(he)機床等。