星形(xing)聯軸(zhou)器(qi)高速(su)運轉時由于(yu)受離(li)心力的作用(yong)而產生的徑向運動將加速(su)其(qi)磨損(sun)，加設外殼。除了能防塵存油(you)外，減薄量(liang)不(bu)足可能會造(zao)成干(gan)涉，減薄量(liang)過大會削弱齒(chi)(chi)(chi)的強(qiang)度，且(qie)會側(ce)隙很大。外齒(chi)(chi)(chi)的接(jie)觸(chu)條件得到改善，避免(mian)了在(zai)角(jiao)位移條件下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端(duan)棱邊擠壓，應力集中的弊(bi)端(duan)，同時改善了齒(chi)(chi)(chi)面(mian)(mian)摩(mo)擦、磨損(sun)狀況，降低(di)了噪聲(sheng)，維修周(zhou)期長。星形(xing)彈性聯軸(zhou)器(qi)外齒(chi)(chi)(chi)套齒(chi)(chi)(chi)端(duan)呈喇叭形(xing)狀，故不(bu)宜在(zai)高速(su)和有沖擊(ji)載荷(he)情況下使用(yong)，也(ye)不(bu)宜用(yong)于(yu)立軸(zhou)的聯接(jie)。星型(xing)彈性聯軸(zhou)器(qi)整體結構設計時，要充分(fen)注意齒(chi)(chi)(chi)面(mian)(mian)與滾(gun)子之間的潤滑(hua)及防塵，還有安全防護作用(yong)。因為鏈條萬一破(po)斷(duan)，可能造(zao)成人(ren)身(shen)事故。鼓度曲(qu)(qu)線曲(qu)(qu)率半(ban)徑與內齒(chi)(chi)(chi)單側(ce)減薄量(liang)成正比，即它(ta)與齒(chi)(chi)(chi)的嚙合間隙有關，使內、外齒(chi)(chi)(chi)裝拆十分(fen)方便。

星型(xing)(xing)聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)有(you)(you)時被誤認(ren)為是梅(mei)花聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)，他們安裝后的(de)外形幾(ji)乎相(xiang)似(si)，但是同(tong)(tong)等型(xing)(xing)號下，星形聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)承受的(de)扭(niu)力更(geng)大，相(xiang)對(dui)梅(mei)花聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)，它(ta)的(de)內孔和(he)外形可以做到更(geng)小。星形彈(dan)性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)聚(ju)氨(an)脂彈(dan)性(xing)(xing)(xing)體(ti)由凸形爪(zhua)塊限(xian)制(zhi)，聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)是以工(gong)(gong)(gong)程(cheng)(cheng)塑(su)(su)料作彈(dan)性(xing)(xing)(xing)元件，適(shi)用于聯(lian)(lian)(lian)(lian)接(jie)兩(liang)同(tong)(tong)軸(zhou)(zhou)(zhou)線的(de)傳(chuan)(chuan)動軸(zhou)(zhou)(zhou)系，具有(you)(you)補償兩(liang)軸(zhou)(zhou)(zhou)相(xiang)對(dui)偏移、緩沖(chong)、減震(zhen)、耐磨性(xing)(xing)(xing)能(neng)，適(shi)應(ying)場合普遍 ，傳(chuan)(chuan)遞轉(zhuan)矩20-35000.N.M,工(gong)(gong)(gong)作溫(wen)度-35-+80攝氏度。星型(xing)(xing)彈(dan)性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)中的(de)彈(dan)性(xing)(xing)(xing)元件是工(gong)(gong)(gong)程(cheng)(cheng)塑(su)(su)料，由于該工(gong)(gong)(gong)程(cheng)(cheng)塑(su)(su)料具有(you)(you)良好的(de)彈(dan)性(xing)(xing)(xing)、緩沖(chong)性(xing)(xing)(xing)、減震(zhen)性(xing)(xing)(xing)、耐磨性(xing)(xing)(xing)，因此能(neng)很好的(de)補償兩(liang)傳(chuan)(chuan)動軸(zhou)(zhou)(zhou)系之(zhi)間的(de)各種位移.星形彈(dan)性(xing)(xing)(xing)聯(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)(qi)的(de)聚(ju)氨(an)脂彈(dan)性(xing)(xing)(xing)體(ti)由凸形爪(zhua)塊限(xian)制(zhi)。特(te)點：預應(ying)力下無齒隙的(de)連接(jie)，用于主軸(zhou)(zhou)(zhou)傳(chuan)(chuan)動、升降平臺和(he)機床(chuang)等。