推力滾子軸承廠家的(de)(de)失(shi)效分(fen)析中，由(you)原材(cai)(cai)料(liao)所造(zao)成的(de)(de)軸(zhou)(zhou)承(cheng)(cheng)(cheng)失(shi)效比例(li)已(yi)經大幅(fu)下降(jiang)，但材(cai)(cai)料(liao)也仍(reng)然是軸(zhou)(zhou)承(cheng)(cheng)(cheng)失(shi)效的(de)(de)重要(yao)(yao)原因，更是軸(zhou)(zhou)承(cheng)(cheng)(cheng)使用(yong)壽(shou)(shou)命(ming)的(de)(de)主(zhu)要(yao)(yao)約束(shu)因素(su)(su)。使用(yong)壽(shou)(shou)命(ming)的(de)(de)長短，一(yi)般情(qing)況下受材(cai)(cai)質(zhi)(zhi)與工藝這兩個自身(shen)因素(su)(su)的(de)(de)影響(xiang)，材(cai)(cai)質(zhi)(zhi)在很大程度上(shang)決定了NTN軸(zhou)(zhou)承(cheng)(cheng)(cheng)的(de)(de)使用(yong)壽(shou)(shou)命(ming)，曾經軸(zhou)(zhou)承(cheng)(cheng)(cheng)的(de)(de)冶(ye)金質(zhi)(zhi)量是造(zao)成滾動軸(zhou)(zhou)承(cheng)(cheng)(cheng)早期失(shi)效的(de)(de)主(zhu)要(yao)(yao)原因。軸(zhou)(zhou)承(cheng)(cheng)(cheng)材(cai)(cai)質(zhi)(zhi)對使用(yong)壽(shou)(shou)命(ming)的(de)(de)影響(xiang)，在冶(ye)金技術上(shang)大幅(fu)提升，軸(zhou)(zhou)承(cheng)(cheng)(cheng)鋼等材(cai)(cai)料(liao)相繼出(chu)現之(zhi)后。

推力(li)滾(gun)(gun)子軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)廠家可分為滾(gun)(gun)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)和滑(hua)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)兩大(da)類。其中(zhong)滾(gun)(gun)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)已(yi)經標準化(hua)、系列化(hua)，但與滑(hua)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)相(xiang)比(bi)(bi)它的(de)徑(jing)向尺寸、振動(dong)和噪聲較(jiao)大(da)，價格也較(jiao)高(gao)。滾(gun)(gun)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)一(yi)般由外圈、內圈、滾(gun)(gun)動(dong)體和保持架四部分組(zu)成。滑(hua)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)一(yi)般用在(zai)環境比(bi)(bi)較(jiao)惡劣的(de)場合(he)，相(xiang)比(bi)(bi)滾(gun)(gun)動(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)轉速要(yao)低、精度(du)要(yao)高(gao)而且要(yao)留有潤(run)滑(hua)槽適時加潤(run)滑(hua)脂潤(run)滑(hua)。

推力(li)(li)(li)滾(gun)子(zi)軸承(cheng)廠(chang)家檢查項(xiang)目有因異物、傷痕、壓痕而(er)引起的運(yun)轉不暢，因安(an)裝(zhuang)(zhuang)不良(liang)，安(an)裝(zhuang)(zhuang)座(zuo)加(jia)工不良(liang)而(er)出現的力(li)(li)(li)矩不穩定(ding)，因游隙過小(xiao)、安(an)裝(zhuang)(zhuang)誤差(cha)、密(mi)封摩擦而(er)引起的力(li)(li)(li)矩過大等等。如(ru)果沒有異常則可以開(kai)始動(dong)(dong)力(li)(li)(li)運(yun)轉，大型機(ji)械無法(fa)手動(dong)(dong)旋(xuan)(xuan)轉，因此空(kong)載啟動(dong)(dong)后立刻截斷動(dong)(dong)力(li)(li)(li)，機(ji)械空(kong)轉，檢查有無振動(dong)(dong)、噪音，旋(xuan)(xuan)轉部件是(shi)不是(shi)有接觸等等，確定(ding)無異常后，進入(ru)動(dong)(dong)力(li)(li)(li)運(yun)轉。動(dong)(dong)力(li)(li)(li)運(yun)轉，從空(kong)載低速(su)開(kai)始，慢(man)慢(man)的提升至(zhi)所(suo)定(ding)前提的額定(ding)運(yun)轉。

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