潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)的(de)作(zuo)(zuo)用(yong)主(zhu)要是潤(run)滑(hua)(hua)(hua)、保護(hu)(hu)和(he)密封(feng)。絕大(da)多(duo)數潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)用(yong)于(yu)潤(run)滑(hua)(hua)(hua)，稱為減摩潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)。減摩潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)主(zhu)要起(qi)降低機(ji)械(xie)摩擦，潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)經銷商，防止(zhi)(zhi)機(ji)械(xie)磨損(sun)的(de)作(zuo)(zuo)用(yong)．同時(shi)還(huan)兼起(qi)防止(zhi)(zhi)金屬腐蝕的(de)保護(hu)(hu)作(zuo)(zuo)用(yong)，及(ji)密封(feng)防塵作(zuo)(zuo)用(yong)。當剪切作(zuo)(zuo)用(yong)停止(zhi)(zhi)后，它又能(neng)恢(hui)復一定(ding)的(de)稠(chou)度，潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)的(de)這種(zhong)特殊(shu)的(de)流動性(xing)，決(jue)定(ding)它可以(yi)在不適于(yu)用(yong)潤(run)滑(hua)(hua)(hua)油的(de)部位(wei)進行(xing)潤(run)滑(hua)(hua)(hua)。此外，由于(yu)它是半固體(ti)狀物(wu)質，其(qi)密封(feng)作(zuo)(zuo)用(yong)和(he)保護(hu)(hu)作(zuo)(zuo)用(yong)都(dou)比潤(run)滑(hua)(hua)(hua)油好。抗水淋性(xing)試驗(yan)是評價潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)對(dui)水淋洗出的(de)抵(di)抗能(neng)力的(de)試驗(yan)方法。膠體(ti)安定(ding)性(xing)是潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)在貯存和(he)使用(yong)中保持膠體(ti)穩定(ding)，液(ye)體(ti)礦油不從脂(zhi)(zhi)中析出的(de)性(xing)能(neng)。

潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)(zhi)可以(yi)替代的產品類型(xing)： 鋰(li)基(ji)脂(zhi)(zhi)(zhi)、鈣基(ji)脂(zhi)(zhi)(zhi)、鋁(lv)基(ji)脂(zhi)(zhi)(zhi)、復合鋰(li)基(ji)脂(zhi)(zhi)(zhi)、復合鋁(lv)基(ji)脂(zhi)(zhi)(zhi)、高(gao)(gao)溫(wen)脂(zhi)(zhi)(zhi)、低(di)溫(wen)脂(zhi)(zhi)(zhi) 輪軸軸承(cheng)用(yong)(yong)(yong)脂(zhi)(zhi)(zhi)、多(duo)功能(neng)潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)(zhi)、電(dian)動(dong)摩托車(che)用(yong)(yong)(yong)脂(zhi)(zhi)(zhi)、絕緣脂(zhi)(zhi)(zhi)、軸承(cheng)脂(zhi)(zhi)(zhi)、O型(xing)環用(yong)(yong)(yong)脂(zhi)(zhi)(zhi)。 潤(run)滑(hua)(hua)(hua)劑在(zai)軸承(cheng)的滑(hua)(hua)(hua)動(dong)面(mian)與滾(gun)動(dong)面(mian)之間形成(cheng)(cheng)(cheng)一(yi)層油(you)膜(mo)，縱使(shi)(shi)在(zai)重負荷的情況下，潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)(zhi)價格，也能(neng)避免(mian)發生金屬摩擦。滾(gun)動(dong)軸承(cheng)一(yi)般是以(yi)機油(you)或油(you)脂(zhi)(zhi)(zhi)潤(run)滑(hua)(hua)(hua)，在(zai)一(yi)些特(te)殊(shu)的例子中，會使(shi)(shi)用(yong)(yong)(yong)固體潤(run)滑(hua)(hua)(hua)劑。在(zai)以(yi)下條(tiao)件下建議使(shi)(shi)用(yong)(yong)(yong)Super Lube高(gao)(gao)溫(wen)極壓脂(zhi)(zhi)(zhi)代替Super Lube多(duo)功能(neng)合成(cheng)(cheng)(cheng)潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)(zhi)： 工作溫(wen)度較(jiao)高(gao)(gao)， 當工作溫(wen)度超過260度，基(ji)礎(chu)油(you)大部分都(dou)會蒸發掉，不能(neng)形成(cheng)(cheng)(cheng)足夠的潤(run)滑(hua)(hua)(hua)油(you)膜(mo)強度，合肥潤(run)滑(hua)(hua)(hua)脂(zhi)(zhi)(zhi)，這時(shi)需要(yao)(yao)利用(yong)(yong)(yong)一(yi)些固體添加劑如鉛、鋁(lv)、銅和鉬等。主要(yao)(yao)應用(yong)(yong)(yong)環境：高(gao)(gao)溫(wen)爐、自動(dong)焊(han)接(jie)設備和純氧環境。

在更換新脂(zhi)(zhi)時，潤(run)(run)滑(hua)脂(zhi)(zhi)多少錢(qian)，應(ying)(ying)先清除廢潤(run)(run)滑(hua)脂(zhi)(zhi)，將部件清洗干凈(jing)。在補加潤(run)(run)滑(hua)脂(zhi)(zhi)時，應(ying)(ying)將廢潤(run)(run)脂(zhi)(zhi)擠(ji)出，在排脂(zhi)(zhi)口見到新潤(run)(run)滑(hua)脂(zhi)(zhi)時為(wei)止。低(di)(di)噪(zao)音(yin)潤(run)(run)滑(hua)脂(zhi)(zhi)不僅可以降低(di)(di)軸(zhou)承(cheng)(cheng)(cheng)噪(zao)音(yin)，而(er)且能夠延長軸(zhou)承(cheng)(cheng)(cheng)使(shi)(shi)用(yong)壽命，所以低(di)(di)噪(zao)音(yin)軸(zhou)承(cheng)(cheng)(cheng)潤(run)(run)滑(hua)脂(zhi)(zhi)的(de)使(shi)(shi)用(yong)已(yi)經成為(wei)國內外潤(run)(run)滑(hua)行業關注的(de)熱點。軸(zhou)承(cheng)(cheng)(cheng)在運(yun)轉過程中產(chan)生(sheng)的(de)輕微響聲稱為(wei)軸(zhou)承(cheng)(cheng)(cheng)噪(zao)音(yin)，軸(zhou)承(cheng)(cheng)(cheng)噪(zao)音(yin)由振動產(chan)生(sheng)并(bing)伴隨軸(zhou)承(cheng)(cheng)(cheng)溫升，縮短軸(zhou)承(cheng)(cheng)(cheng)的(de)使(shi)(shi)用(yong)壽命。所選潤(run)(run)滑(hua)脂(zhi)(zhi)應(ying)(ying)與摩擦副的(de)工作狀態相適應(ying)(ying)：如在振動較大時，應(ying)(ying)用(yong)粘度高、粘附性和(he)減振性好的(de)脂(zhi)(zhi)，如高粘度環或混(hun)合基潤(run)(run)滑(hua)油稠(chou)化的(de)復(fu)合皂基潤(run)(run)滑(hua)脂(zhi)(zhi)。