星(xing)形(xing)聯軸(zhou)器高(gao)速運轉時由于(yu)受離(li)心力的(de)(de)(de)作用(yong)而產生的(de)(de)(de)徑向運動將加(jia)速其磨損，加(jia)設(she)外(wai)殼。除了(le)能防(fang)塵(chen)存油外(wai)，減(jian)(jian)薄量不足可能會造成(cheng)干(gan)涉，減(jian)(jian)薄量過大(da)會削弱齒(chi)(chi)的(de)(de)(de)強度，且會側(ce)(ce)隙(xi)很大(da)。外(wai)齒(chi)(chi)的(de)(de)(de)接觸(chu)條(tiao)件得到改善，避免了(le)在(zai)角(jiao)位移條(tiao)件下直(zhi)齒(chi)(chi)齒(chi)(chi)端(duan)棱邊擠壓(ya)，應力集中(zhong)的(de)(de)(de)弊(bi)端(duan)，同時改善了(le)齒(chi)(chi)面摩擦(ca)、磨損狀(zhuang)況，降低了(le)噪聲，維(wei)修周期(qi)長(chang)。星(xing)形(xing)彈性聯軸(zhou)器外(wai)齒(chi)(chi)套(tao)齒(chi)(chi)端(duan)呈喇叭形(xing)狀(zhuang)，故不宜在(zai)高(gao)速和有沖擊載(zai)荷情況下使用(yong)，也不宜用(yong)于(yu)立(li)軸(zhou)的(de)(de)(de)聯接。星(xing)型彈性聯軸(zhou)器整(zheng)體(ti)結構(gou)設(she)計時，要(yao)充分注意齒(chi)(chi)面與滾子之間的(de)(de)(de)潤(run)滑及防(fang)塵(chen)，還有安全(quan)防(fang)護作用(yong)。因(yin)為鏈條(tiao)萬一破斷，可能造成(cheng)人身事故。鼓度曲線曲率(lv)半徑與內(nei)齒(chi)(chi)單側(ce)(ce)減(jian)(jian)薄量成(cheng)正比，即它與齒(chi)(chi)的(de)(de)(de)嚙合間隙(xi)有關，使內(nei)、外(wai)齒(chi)(chi)裝(zhuang)拆(chai)十分方便。

星(xing)(xing)型(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)有(you)時被誤認為是(shi)(shi)梅花聯軸(zhou)(zhou)(zhou)器(qi)(qi)，他們(men)安裝后的(de)(de)(de)外形(xing)(xing)幾乎相似，但是(shi)(shi)同等型(xing)號(hao)下，星(xing)(xing)形(xing)(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)承受的(de)(de)(de)扭力更(geng)大，相對梅花聯軸(zhou)(zhou)(zhou)器(qi)(qi)，它的(de)(de)(de)內(nei)孔和(he)外形(xing)(xing)可以做到更(geng)小(xiao)。星(xing)(xing)形(xing)(xing)彈(dan)性(xing)(xing)(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)聚氨脂彈(dan)性(xing)(xing)(xing)體由凸(tu)形(xing)(xing)爪塊(kuai)限(xian)制，聯軸(zhou)(zhou)(zhou)器(qi)(qi)是(shi)(shi)以工(gong)程塑料作彈(dan)性(xing)(xing)(xing)元件(jian)，適用于聯接兩(liang)同軸(zhou)(zhou)(zhou)線的(de)(de)(de)傳(chuan)(chuan)(chuan)動(dong)軸(zhou)(zhou)(zhou)系(xi)，具(ju)有(you)補償兩(liang)軸(zhou)(zhou)(zhou)相對偏移(yi)、緩沖、減(jian)震、耐磨性(xing)(xing)(xing)能(neng)，適應場合普遍 ，傳(chuan)(chuan)(chuan)遞(di)轉矩20-35000.N.M,工(gong)作溫(wen)度(du)-35-+80攝氏度(du)。星(xing)(xing)型(xing)彈(dan)性(xing)(xing)(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)中的(de)(de)(de)彈(dan)性(xing)(xing)(xing)元件(jian)是(shi)(shi)工(gong)程塑料，由于該(gai)工(gong)程塑料具(ju)有(you)良好(hao)的(de)(de)(de)彈(dan)性(xing)(xing)(xing)、緩沖性(xing)(xing)(xing)、減(jian)震性(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)，因此能(neng)很好(hao)的(de)(de)(de)補償兩(liang)傳(chuan)(chuan)(chuan)動(dong)軸(zhou)(zhou)(zhou)系(xi)之間的(de)(de)(de)各種(zhong)位移(yi).星(xing)(xing)形(xing)(xing)彈(dan)性(xing)(xing)(xing)聯軸(zhou)(zhou)(zhou)器(qi)(qi)的(de)(de)(de)聚氨脂彈(dan)性(xing)(xing)(xing)體由凸(tu)形(xing)(xing)爪塊(kuai)限(xian)制。特點(dian)：預(yu)應力下無(wu)齒(chi)隙的(de)(de)(de)連接，用于主軸(zhou)(zhou)(zhou)傳(chuan)(chuan)(chuan)動(dong)、升降(jiang)平臺和(he)機床等。