齒(chi)輪(lun)油(you)特(te)點：1、良(liang)好(hao)的(de)(de)氧化安(an)定(ding)性(xing)(xing)和熱安(an)定(ding)性(xing)(xing)；2、合適的(de)(de)粘(zhan)(zhan)(zhan)(zhan)(zhan)度(du)及良(liang)好(hao)的(de)(de)粘(zhan)(zhan)(zhan)(zhan)(zhan)溫性(xing)(xing)；3、良(liang)好(hao)的(de)(de)防銹防腐蝕性(xing)(xing)；4、良(liang)好(hao)的(de)(de)抗乳(ru)化性(xing)(xing)；5、良(liang)好(hao)的(de)(de)抗泡性(xing)(xing)；6、足夠的(de)(de)極壓抗磨(mo)性(xing)(xing)。齒(chi)輪(lun)油(you)的(de)(de)低溫表(biao)觀粘(zhan)(zhan)(zhan)(zhan)(zhan)度(du)是(shi)采用(yong)布(bu)氏粘(zhan)(zhan)(zhan)(zhan)(zhan)度(du)計(brookfield)按(an)astmd2983(gb/t11145)方法測(ce)定(ding)的(de)(de)動力粘(zhan)(zhan)(zhan)(zhan)(zhan)度(du)，以mpa.s表(biao)示，表(biao)觀粘(zhan)(zhan)(zhan)(zhan)(zhan) 度(du)與后橋齒(chi)輪(lun)的(de)(de)低溫流動性(xing)(xing)有關，北京長(chang)城福鑰星，通(tong)常(chang)用(yong)表(biao)觀粘(zhan)(zhan)(zhan)(zhan)(zhan)度(du)為150000mpa.s時(shi)使用(yong)溫度(du)來確定(ding)油(you)品的(de)(de)粘(zhan)(zhan)(zhan)(zhan)(zhan)度(du)等級(牌號)。

車(che)輛齒(chi)輪(lun)(lun)油應具(ju)有(you)(you)(you)適度的(de)化學活性，對金(jin)屬的(de)腐蝕(shi)性要小(xiao);齒(chi)輪(lun)(lun)裝置中(zhong)的(de)滑動軸承(cheng)，同步器中(zhong)的(de)某些部件是(shi)用青(qing)銅(tong)或(huo)其他銅(tong)合金(jin)制(zhi)成的(de)，銅(tong)是(shi)活潑金(jin)屬，容易與積(ji)壓劑(ji)反應而被腐蝕(shi);車(che)輛齒(chi)輪(lun)(lun)油的(de)腐蝕(shi)性用銅(tong)片腐蝕(shi)試驗評(ping)定;由于晝夜的(de)大氣(qi)(qi)溫差，大氣(qi)(qi)中(zhong)的(de)水蒸氣(qi)(qi)夜間會在齒(chi)輪(lun)(lun)裝置中(zhong)冷凝;車(che)輛齒(chi)輪(lun)(lun)油應具(ju)有(you)(you)(you)良好(hao)的(de)防銹性;車(che)輛齒(chi)輪(lun)(lun)油中(zhong)加(jia)有(you)(you)(you)多量的(de)極壓劑(ji)，容易引起金(jin)屬的(de)腐蝕(shi)和銹蝕(shi);因此(ci)，車(che)輛齒(chi)輪(lun)(lun)油的(de)添加(jia)劑(ji)配方必(bi)須仔細地平衡，兼(jian)顧極壓性和腐蝕(shi)性。

車輛齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)油(you)的(de)粘(zhan)(zhan)(zhan)(zhan)度與承(cheng)載能力有(you)密(mi)切關(guan)系，由式(shi)(1)可知，粘(zhan)(zhan)(zhan)(zhan)度增加(jia)(jia)，北京長城福鑰星供應商，彈性流(liu)體動(dong)力潤(run)滑油(you)膜厚度增加(jia)(jia)，有(you)利于齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)面保護，但是(shi)粘(zhan)(zhan)(zhan)(zhan)度不(bu)是(shi)越(yue)高(gao)越(yue)好;齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)工作時攪動(dong)齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)油(you)，液體內摩(mo)擦產生摩(mo)擦熱，使油(you)溫升高(gao);齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)油(you)的(de)低溫粘(zhan)(zhan)(zhan)(zhan)度對齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)工作有(you)重要影響;汽車后橋齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)是(shi)噴濺(jian)式(shi)潤(run)滑，低溫時齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)油(you)須具有(you)足夠(gou)的(de)流(liu)動(dong)性，齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)轉動(dong)時才能將足夠(gou)的(de)油(you)帶(dai)到(dao)齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)面及軸承(cheng)，防止出現(xian)損(sun)傷;車輛齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)油(you)在(zai)低溫下(xia)的(de)表觀粘(zhan)(zhan)(zhan)(zhan)度和成溝點在(zai)一定(ding)程(cheng)度上(shang)說明齒(chi)(chi)(chi)(chi)(chi)(chi)(chi)輪(lun)油(you)在(zai)低溫下(xia)的(de)流(liu)動(dong)性;