型(xing)號：23152CAW33（3053752k）

    規格：260*440*144

    軸承（Bearing）是(shi)當代機械設備中一(yi)種重要(yao)零部(bu)件(jian)。它的(de)主(zhu)要(yao)功能是(shi)支撐機械旋(xuan)轉(zhuan)體，降低其(qi)運動過(guo)程(cheng)中的(de)摩擦系數(shu)，并保證其(qi)回(hui)轉(zhuan)精度。

    按運動元件摩擦性質的不同(tong)，軸(zhou)承(cheng)可分為滾動軸(zhou)承(cheng)和滑動軸(zhou)承(cheng)兩大類(lei)。其(qi)中滾動軸(zhou)承(cheng)已經標(biao)準(zhun)化(hua)、系列化(hua)，但與滑動軸(zhou)承(cheng)相比(bi)它的徑向尺寸、振動和噪聲較大，價格也(ye)較高。

    滾(gun)(gun)(gun)動(dong)(dong)軸承(cheng)(cheng)(cheng)一(yi)般由外(wai)圈、內圈、滾(gun)(gun)(gun)動(dong)(dong)體和保(bao)持架四部分(fen)組成。按滾(gun)(gun)(gun)動(dong)(dong)體的形狀，滾(gun)(gun)(gun)動(dong)(dong)軸承(cheng)(cheng)(cheng)分(fen)為球軸承(cheng)(cheng)(cheng)和滾(gun)(gun)(gun)子軸承(cheng)(cheng)(cheng)兩大類。

    早期的(de)直(zhi)線(xian)運(yun)動(dong)軸(zhou)(zhou)承形(xing)式(shi)，就是在一(yi)排撬(qiao)板下放置(zhi)一(yi)排木桿。現代直(zhi)線(xian)運(yun)動(dong)軸(zhou)(zhou)承使用(yong)的(de)是同一(yi)種(zhong)工作原理(li)，只不過有時用(yong)球代替滾(gun)子。最簡單(dan)的(de)旋轉軸(zhou)(zhou)承是軸(zhou)(zhou)套軸(zhou)(zhou)承，它只是一(yi)個夾在車輪和輪軸(zhou)(zhou)之間的(de)襯套。這種(zhong)設計隨后被滾(gun)動(dong)軸(zhou)(zhou)承替代，就是用(yong)很多圓柱形(xing)的(de)滾(gun)子替代原先的(de)襯套，每個滾(gun)動(dong)體(ti)就像(xiang)一(yi)個單(dan)獨的(de)車輪。

    調心滾子軸承有兩列對稱型球面滾子，主(zhu)要承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)(shou)(shou)(shou)徑向載荷(he)(he)，同(tong)時也能(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)(shou)(shou)(shou)任一方(fang)向的(de)(de)軸(zhou)向載荷(he)(he)，但不(bu)能(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)(shou)(shou)(shou)純(chun)軸(zhou)向載荷(he)(he)。該類軸(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)外圈滾道(dao)是球面形，故其調心(xin)(xin)性能(neng)良好(hao)，能(neng)補償同(tong)軸(zhou)度(du)(du)誤(wu)差，當軸(zhou)受(shou)(shou)(shou)(shou)力彎曲或(huo)(huo)安裝不(bu)同(tong)心(xin)(xin)時軸(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)仍可正常使用，調心(xin)(xin)性隨(sui)軸(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)尺寸系列不(bu)同(tong)而異，一般所(suo)允許(xu)的(de)(de)調心(xin)(xin)角(jiao)度(du)(du)為(wei)1~2.5度(du)(du) ，該類型軸(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)負(fu)荷(he)(he)能(neng)力較(jiao)(jiao)大，除能(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)(shou)(shou)(shou)徑向負(fu)荷(he)(he)外軸(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)還能(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)(shou)(shou)(shou)雙向作用的(de)(de)軸(zhou)向負(fu)荷(he)(he)，具(ju)有較(jiao)(jiao)好(hao)的(de)(de)抗沖擊能(neng)力，一般來說調心(xin)(xin)滾子軸(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)所(suo)允許(xu)的(de)(de)工(gong)作轉(zhuan)速較(jiao)(jiao)低。適用于重載或(huo)(huo)振動載荷(he)(he)下工(gong)作。