萬向軸的(de)選(xuan)擇主要考慮(lv)所需(xu)傳遞軸轉(zhuan)(zhuan)速的(de)高低,載(zai)荷(he)的(de)大小,被聯(lian)接兩部件的(de)安裝精度等,回轉(zhuan)(zhuan)的(de)平(ping)穩性(xing),價格等,參考各(ge)類(lei)萬(wan)向軸的(de)特性(xing),選(xuan)擇一種合用(yong)的(de)萬(wan)向軸類(lei)型。萬(wan)向軸是用(yong)來聯(lian)接不同(tong)機構中的(de)兩根軸(主動(dong)軸和從動(dong)軸)使之共同(tong)旋轉(zhuan)(zhuan)以(yi)傳遞扭(niu)矩的(de)機械零(ling)件，在高速重載(zai)的(de)動(dong)力(li)傳動(dong)中,有些萬(wan)向軸還有緩沖,減(jian)振和提(ti)高軸系(xi)動(dong)態性(xing)能(neng)的(de)作(zuo)用(yong)。

萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)由(you)兩(liang)半(ban)部分組成,分別與主動(dong)(dong)軸(zhou)(zhou)(zhou)和從動(dong)(dong)軸(zhou)(zhou)(zhou)聯接.一般動(dong)(dong)力機(ji)大都借助于(yu)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)與工作(zuo)機(ji)相聯接。機(ji)械(xie)用(yong)(yong)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)件(jian)(jian)(jian)外(wai)形(xing)尺(chi)寸(cun)，即Z大徑向(xiang)(xiang)和軸(zhou)(zhou)(zhou)向(xiang)(xiang)尺(chi)寸(cun)，必(bi)須在機(ji)器設備允許的安裝(zhuang)空間以(yi)內。應選擇裝(zhuang)拆(chai)方(fang)便、不用(yong)(yong)維(wei)(wei)護(hu)、維(wei)(wei)護(hu)周期長(chang)或(huo)維(wei)(wei)護(hu)方(fang)便、更換(huan)(huan)易損(sun)件(jian)(jian)(jian)不用(yong)(yong)移動(dong)(dong)兩(liang)軸(zhou)(zhou)(zhou)、對中(zhong)(zhong)調(diao)整(zheng)容易的機(ji)械(xie)用(yong)(yong)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)件(jian)(jian)(jian)。大型機(ji)器設備調(diao)整(zheng)兩(liang)軸(zhou)(zhou)(zhou)對中(zhong)(zhong)較困難，應選擇使用(yong)(yong)耐久(jiu)(jiu)和更換(huan)(huan)易損(sun)件(jian)(jian)(jian)方(fang)便的機(ji)械(xie)用(yong)(yong)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)件(jian)(jian)(jian)。金屬彈性(xing)元(yuan)性(xing)撓(nao)性(xing)機(ji)械(xie)用(yong)(yong)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)件(jian)(jian)(jian)一般比非(fei)金屬彈性(xing)元(yuan)件(jian)(jian)(jian)撓(nao)性(xing)機(ji)械(xie)用(yong)(yong)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)件(jian)(jian)(jian)的使用(yong)(yong)壽命長(chang)。需密封潤滑(hua)和使用(yong)(yong)不耐久(jiu)(jiu)的機(ji)械(xie)用(yong)(yong)萬向(xiang)(xiang)軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)件(jian)(jian)(jian)，必(bi)然增加維(wei)(wei)護(hu)工作(zuo)量。

對(dui)于長期(qi)連續(xu)運轉(zhuan)和(he)經(jing)濟效益較高(gao)(gao)的(de)(de)場合，例如我國冶金企業的(de)(de)軋機傳動(dong)系(xi)統高(gao)(gao)速端，目前普(pu)遍采用(yong)的(de)(de)是齒式機械用(yong)萬(wan)向(xiang)軸(zhou)傳動(dong)件(jian)，齒式機械用(yong)萬(wan)向(xiang)軸(zhou)傳動(dong)件(jian)雖(sui)然理(li)論上(shang)傳遞(di)轉(zhuan)矩大(da)，但(dan)必須在潤(run)滑(hua)(hua)和(he)密封良好的(de)(de)條件(jian)下(xia)才能(neng)耐久工作(zuo)。且需經(jing)常檢查密封狀況(kuang)，注潤(run)滑(hua)(hua)油或(huo)潤(run)滑(hua)(hua)脂，維(wei)護工作(zuo)量(liang)大(da)，增加了(le)輔助工時，減少了(le)有效工作(zuo)時間，影響(xiang)生(sheng)產效益。

國際上(shang)工業(ye)發達國家，已普通選(xuan)用(yong)(yong)使用(yong)(yong)壽命(ming)長、不(bu)(bu)用(yong)(yong)潤滑(hua)和維護的膜片(pian)聯軸順取代鼓形齒式機械(xie)用(yong)(yong)萬(wan)向軸傳(chuan)動(dong)件(jian)，不(bu)(bu)僅提高了(le)經濟效(xiao)益(yi)，還可凈化工作環境。在(zai)軋機傳(chuan)動(dong)系統選(xuan)用(yong)(yong)我國研制的彈性(xing)活銷機械(xie)用(yong)(yong)萬(wan)向軸傳(chuan)動(dong)件(jian)和扇形塊彈性(xing)機械(xie)用(yong)(yong)萬(wan)向軸傳(chuan)動(dong)件(jian)，不(bu)(bu)僅具有(you)膜片(pian)機械(xie)用(yong)(yong)萬(wan)向軸傳(chuan)動(dong)件(jian)的優點，而且緩沖減振效(xiao)果好，價格更便宜。