NNU4921/W33雙列圓柱滾子系列軸承小型歡迎咨詢無(wú)錫哈配機(jī)電設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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"><meta name="keywords" content="NNU4921/W33雙列圓柱滾子系列軸承小型,雙列圓柱滾子系列軸承"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta 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href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="crjqp7d" class="twoCol"><div id="cbdk84q" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_zhoucheng/">軸承</a>?<a href="http://www.cdcfah.com/cp/third-zhoucheng_qitacheng/">其他承</a>?NNU4921/W33雙列圓柱滾子系列軸承小型歡迎咨詢無(wú)錫哈配機(jī)電設(shè)備供應(yīng)</p><div id="kumcwf8" class="leftbox clearfix"><h1>NNU4921/W33雙列圓柱滾子系列軸承小型歡迎咨詢無(wú)錫哈配機(jī)電設(shè)備供應(yīng)</h1><div id="w2gnzbl" class="proBig"><div id="eyaxzgn" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/13771454137/637347380598652344/9800197.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="eo843q8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/13771454137/637347380598652344/9800197.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3h4ovsz" 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>NNU4921/W33雙列圓柱滾子系列軸承小型,雙列圓柱滾子系列軸承</p><p><span>***更新：</span>2021-01-28 14:19:20</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="gq2yace" 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="vaxu7ix" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8xw89e3" class="box"><p><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，NNU4921/W33雙列圓柱滾子系列軸承小型，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，NNU4921/W33雙列圓柱滾子系列軸承小型，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，NNU4921/W33雙列圓柱滾子系列軸承小型。圓柱滾子軸承特點(diǎn)：軸承安裝后外圈軸線相對(duì)偏斜要嚴(yán)加控制，以免造成接觸應(yīng)力集中。NNU4921/W33雙列圓柱滾子系列軸承小型</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="NNU4921/W33雙列圓柱滾子系列軸承小型,雙列圓柱滾子系列軸承" src="https://tyunfile.71360.com/UploadFile/13771454137/637347380598652344/9800197.png"></div><p style="text-indent:25px">常用的圓柱滾子軸承有下面幾種形式：?jiǎn)瘟袌A柱滾子軸承：?jiǎn)瘟袌A柱滾子軸承是可分離軸承，便于安裝和拆卸，兩個(gè)套圈都可以采用緊配合，修正的滾子和滾道之間的接觸線可以減小應(yīng)力集中。雙列圓柱滾子軸承：雙列圓柱滾子軸承屬于游動(dòng)軸承，其可分離性使安裝和拆卸很方便。兩個(gè)套圈均可以采用緊配合。雙列圓柱滾子軸承幾乎不允許有傾斜角。N型軸承的外圈無(wú)擋邊，內(nèi)圈的兩側(cè)有擋邊?？梢栽试S軸相對(duì)軸承座之間在軸向兩個(gè)方向上的位移。NU型的軸承外圈兩側(cè)有擋邊，內(nèi)圈無(wú)擋邊。也可以允許軸相對(duì)軸承座之間在軸向兩個(gè)方向上的位移。因此,該類結(jié)構(gòu)適用于作為游動(dòng)端軸承使用。NNU4921/W33雙列圓柱滾子系列軸承小型圓柱滾子軸承的內(nèi)圈拆卸可以利用感應(yīng)加熱法。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="NNU4921/W33雙列圓柱滾子系列軸承小型,雙列圓柱滾子系列軸承" src="https://tyunfile.71360.com/UploadFile/13771454137/637346637576416016/9692527.png"></div><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）2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。</p><p style="text-indent:25px">NNF型軸承是雙列滿裝圓柱滾子軸承，軸承是一個(gè)帶中擋邊外圈，兩個(gè)有雙擋邊內(nèi)圈的結(jié)構(gòu)型式。滾子由內(nèi)圈的擋邊引導(dǎo)，兩個(gè)內(nèi)圈用緊固圈固定在一起。該結(jié)構(gòu)除了可以承受很大的徑向載荷和軸向載荷之外，還可以承受傾覆力矩，因此，常用作固定端軸承使用。NNF型軸承兩側(cè)采用接觸式密封。軸承內(nèi)填有潤(rùn)滑脂，潤(rùn)滑脂的工作溫度為-50℃至+110℃，但由于受密封材料的限制，軸承的工作溫度限于于-40℃至+80℃之間。在使用工況較好的情況下，帶有密封的NNF軸承無(wú)需進(jìn)行保養(yǎng)，若軸承長(zhǎng)期處于水汽或污染環(huán)境，且為中、高速運(yùn)轉(zhuǎn)時(shí)，可通過(guò)外圈上的潤(rùn)滑油槽和潤(rùn)滑油孔對(duì)軸承進(jìn)行補(bǔ)充潤(rùn)滑。清洗后，立即在軸承上涂布防銹油或防銹脂。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="NNU4921/W33雙列圓柱滾子系列軸承小型,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">為了確定軸承壽命的標(biāo)準(zhǔn)，需要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?；绢~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。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。根據(jù)套圈有無(wú)擋邊，可分為NNU、NN等雙列圓柱滾子軸承。NN3018K/W33雙列圓柱滾子系列軸承</p><p style="text-indent:25px">圓柱滾子軸承摩擦系數(shù)小，適合高速，極限轉(zhuǎn)速接近深溝球軸承。NNU4921/W33雙列圓柱滾子系列軸承小型</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。還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。NNU4921/W33雙列圓柱滾子系列軸承小型</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3051880.html</p></div></div></div></div></div><div id="fzbg87q" class="page-right twoColRt"><div id="gv78ovh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rw2ubi2" 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" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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