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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè),雙列圓柱滾子系列軸承</p><p><span>***更新：</span>2020-11-25 08:19:12</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ofmlhov" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫哈配機(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>杜寶成</p><p><span>郵箱: </span>409676305@qq.com</p><p><span>電話: </span>13771454137</p><p><span>傳真: </span>0510_82351957</p><p><span>網(wǎng)址: </span>http://13771454137.shop.88360.com</p><p><span>手機(jī): </span>0510-82351957</p><p><span>地址: </span>惠山大道9號(hào)賽格電子市場(chǎng)C區(qū)1C146號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ycoliz2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="wzwt8zb" class="box"><p><p style="text-indent:25px">為確定軸承壽命的標(biāo)準(zhǔn)，把軸承壽命與可靠性聯(lián)系起來(lái)。雙列圓柱滾子額定壽命：由于制造精度，材料均勻程度的差異，即使是同樣材料，同樣尺寸的同一批軸承，在同樣的工作條件下使用，其壽命長(zhǎng)短也不相同。若以統(tǒng)計(jì)壽命為1單位，較長(zhǎng)的相對(duì)壽命為4單位，較短的為0.1-0.2單位，至長(zhǎng)與至短壽命之比為20-40倍。90%的軸承不產(chǎn)生點(diǎn)蝕，所經(jīng)歷的轉(zhuǎn)數(shù)或小時(shí)數(shù)稱為軸承額定壽命，NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)。基本額定動(dòng)載荷：為比較軸承抗點(diǎn)蝕的承載能力，規(guī)定軸承的額定壽命為一百萬(wàn)轉(zhuǎn)（106）時(shí)，所能承受的至大載荷為基本額定動(dòng)載荷，以C表示，NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)，NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)。也就是軸承在額定動(dòng)載荷C作用下，這種軸承工作一百萬(wàn)轉(zhuǎn)（106）而不發(fā)生點(diǎn)蝕失效的可靠度為90%，C越大承載能力越高。對(duì)于基本額定動(dòng)載荷： 1．向心軸承是指純徑向載荷 2．推力球軸承是指純軸向載荷 3．向心推力軸承是指產(chǎn)生純徑向位移得徑向分量圓柱滾子軸承需要注意哪些問(wèn)題？NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè),雙列圓柱滾子系列軸承" src="https://tyunfile.71360.com/UploadFile/13771454137/637347380410683594/3248722.png"></div><p style="text-indent:25px">雙列圓柱滾子軸承：這類軸承能承受較大的徑向載荷并允許有較高的轉(zhuǎn)速。軸承中的兩列滾子以交叉方式排列，旋轉(zhuǎn)時(shí)波動(dòng)頻率可比單列軸承提高一倍，振幅降低70％。常用的此類軸承有兩種形式：NN30/W33、NN30K/W33兩個(gè)系列軸承內(nèi)圈帶擋邊，外圈可分離；NNU49/W33、NNU49K/W33兩個(gè)系列軸承外圈帶擋邊，內(nèi)圈可分離，其中NN30K/W33和NNU49K/W33系列內(nèi)圈為錐孔（錐度1：12），與主軸的錐形軸頸相配合，軸向移動(dòng)內(nèi)圈，可使內(nèi)圈脹大，以減小軸承游隙甚至預(yù)緊軸承。圓柱孔軸承通常采用熱裝，利用過(guò)盈配合減小軸承游隙，或者達(dá)到預(yù)緊的目的。對(duì)內(nèi)圈可分離的NNU49系列軸承，一般在內(nèi)圈裝上主軸后再作滾道的精加工，以獲得高的主軸旋轉(zhuǎn)精度。哈爾濱NN3024K/W33雙列圓柱滾子系列軸承機(jī)械常用的圓柱滾子軸承有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè),雙列圓柱滾子系列軸承" src="https://tyunfile.71360.com/UploadFile/13771454137/637346637383583985/9042840.png"></div><p style="text-indent:25px">雙列圓柱滾子軸承的潤(rùn)滑分為脂潤(rùn)滑和油潤(rùn)滑。為了使軸承很好地發(fā)揮機(jī)能，首先，要選擇適合使用條件、使用目的的潤(rùn)滑方法。若只考慮潤(rùn)滑，油潤(rùn)滑的潤(rùn)滑性占優(yōu)勢(shì)。但是，脂潤(rùn)滑有可以簡(jiǎn)化軸承周圍結(jié)構(gòu)的特長(zhǎng)，將脂潤(rùn)滑和油潤(rùn)滑的利弊比較。軸承壽命在一定載荷作用下，軸承在出現(xiàn)點(diǎn)蝕前所經(jīng)歷的轉(zhuǎn)數(shù)或小時(shí)數(shù)，稱為軸承壽命。滾動(dòng)軸承之壽命以轉(zhuǎn)數(shù)（或以一定轉(zhuǎn)速下的工作的小時(shí)數(shù)）定義：在此壽命以內(nèi)的軸承，應(yīng)在其任何軸承圈或滾動(dòng)體上發(fā)生初步疲勞損壞（剝落或缺損）。然而無(wú)論在實(shí)驗(yàn)室試驗(yàn)或在實(shí)際使用中，都可明顯的看到，在同樣的工作條件下的外觀相同軸承，實(shí)際壽命大不相同。此外還有數(shù)種不同定義的軸承“壽命”，其中之一即所謂的“工作壽命”，它表示某一軸承在損壞之前可達(dá)到的實(shí)際壽命是由磨損、損壞通常并非由疲勞所致，而是由磨損、腐蝕、密封損壞等原因造成。</p><p style="text-indent:25px">雙列圓柱滾子軸承有圓柱形內(nèi)孔和圓錐形內(nèi)孔（軸承后置代號(hào)加K）兩種結(jié)構(gòu)。雙列圓柱滾子軸承軸承具有結(jié)構(gòu)緊湊、剛性大、承載能力大、受負(fù)荷后變形小等優(yōu)點(diǎn)。圓錐形內(nèi)孔還可以起到微量調(diào)整游隙的作用，且可以簡(jiǎn)化定位裝置結(jié)構(gòu)，方便安裝拆卸。雙列圓柱滾子軸承：產(chǎn)品類型：NN型（雙列圓柱滾子軸承內(nèi)圈雙擋邊而外圈無(wú)擋邊） NNU型（雙列圓柱滾子軸承外圈雙擋邊而內(nèi)圈無(wú)擋邊）應(yīng)用范圍:雙列圓柱滾子軸承的截面小、載荷能力高而且剛性高。主要用于機(jī)床、軋機(jī)架、塑料滾筒、磨床以及大型齒輪箱。滾動(dòng)體、保持架：雙列圓柱滾子軸承的滾動(dòng)體為雙排鋼材質(zhì)圓柱滾動(dòng)體，采用的保持架材料主要有鋼，尼龍，黃銅等各種材料。雙列圓柱滾子軸承軸承具有結(jié)構(gòu)緊湊、剛性大、承載能力大、受負(fù)荷后變形小等優(yōu)點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè),雙列圓柱滾子系列軸承" src="https://tyunfile.71360.com/UploadFile/13771454137/637346637543564453/235286.png"></div><p style="text-indent:25px">無(wú)錫哈配機(jī)電設(shè)備有限公司始建于2012年，公司辦公地址位于太湖明珠魚(yú)米之鄉(xiāng)無(wú)錫，在公司發(fā)展壯大的6年里，我們始終為客戶提供良好的產(chǎn)品和技術(shù)支持、健全的售后服務(wù)。公司主要經(jīng)營(yíng)產(chǎn)品有高精密P2、P4 、P5級(jí)機(jī)床主軸**軸承、高速角接觸球軸承，成對(duì)雙聯(lián)及多聯(lián)軸承，成對(duì)滾珠絲桿軸承以及圓錐滾子和推力球軸承深溝球軸承等。普遍適用于數(shù)控機(jī)床、磨床、高速銑床及高速磨頭，為國(guó)內(nèi)數(shù)家大型數(shù)控機(jī)床提供配套服務(wù)。部分產(chǎn)品可替代進(jìn)口軸承，如果您對(duì)我公司的產(chǎn)品服務(wù)有興趣，期待您在線留言或者來(lái)電咨詢。雙列圓柱滾子軸承的保養(yǎng)步驟有哪些？NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)</p><p style="text-indent:25px">圓柱滾子軸承根據(jù)精度等級(jí)可分PO,P6，P5,P4，P2.精度等級(jí)從低依次到高排序。NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)</p><p style="text-indent:25px">索倫軸承（外圈帶止動(dòng)槽的雙列圓柱滾子軸承）兩側(cè)裝有聚亞安脂（AU）制成的接觸式密封圈，可以提供良好的密封效果。軸承內(nèi)裝填有鋰基潤(rùn)滑脂，可在-40至+80℃溫度之間使用。這種帶密封的軸承，在一定的條件下，是無(wú)需維護(hù)的。但在潮濕或污染較嚴(yán)重的環(huán)境下，或在中速至高速下運(yùn)行時(shí)，軸承就必須定時(shí)做補(bǔ)充潤(rùn)滑，可以使用內(nèi)圈或外圈上的潤(rùn)滑孔進(jìn)行潤(rùn)滑。也可以將密封圈從軸承中取出，軸承就可以作為開(kāi)式軸承來(lái)使用。這類軸承的剛性非常好，可承受很高的徑向力和中等大小的雙向軸向力。NNU4920KTN/W33雙列圓柱滾子系列軸承企業(yè)</p><p style="text-indent:25px">無(wú)錫哈配機(jī)電設(shè)備有限公司是一家主要精密機(jī)床主軸軸承，電主軸。高速電機(jī)軸承，電機(jī)，機(jī)械設(shè)備，潤(rùn)滑油，聯(lián)軸器，絲桿導(dǎo)軌，機(jī)床配件。五金產(chǎn)品。NSK.NTN.SKF.FAG,INA,TIMKEN.FYH,NACHI,TWB,HRB,HBB的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。無(wú)錫哈配機(jī)電深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的j精密機(jī)床軸承，角接觸球軸承，圓柱滾子軸承，深溝球軸承。無(wú)錫哈配機(jī)電致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來(lái)良好體驗(yàn)。無(wú)錫哈配機(jī)電始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使無(wú)錫哈配機(jī)電在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2137868.html</p></div></div></div></div></div><div id="ts7h773" class="page-right twoColRt"><div id="8q8z49v" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="vkj2492" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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