型號：2301530CAW33（3053530k）

    規(gui)格(ge)：530*780*185

    軸承（Bearing）是當(dang)代機械設(she)備(bei)中一(yi)種重(zhong)要(yao)零(ling)部件。它的主(zhu)要(yao)功(gong)能是支(zhi)撐機械旋(xuan)轉體(ti)，降(jiang)低其運(yun)動(dong)過程中的摩擦(ca)系數(shu)，并保證其回轉精度(du)。

    按(an)運動(dong)(dong)(dong)(dong)(dong)(dong)元件摩擦(ca)性質的不同，軸承(cheng)(cheng)(cheng)可分(fen)為滾(gun)動(dong)(dong)(dong)(dong)(dong)(dong)軸承(cheng)(cheng)(cheng)和滑動(dong)(dong)(dong)(dong)(dong)(dong)軸承(cheng)(cheng)(cheng)兩大類。其(qi)中滾(gun)動(dong)(dong)(dong)(dong)(dong)(dong)軸承(cheng)(cheng)(cheng)已經標(biao)準化、系列化，但與滑動(dong)(dong)(dong)(dong)(dong)(dong)軸承(cheng)(cheng)(cheng)相比它的徑(jing)向尺寸、振動(dong)(dong)(dong)(dong)(dong)(dong)和噪(zao)聲較大，價格(ge)也較高。

    滾動(dong)(dong)(dong)軸承一般由外圈、內圈、滾動(dong)(dong)(dong)體和保持架(jia)四部分組(zu)成。按滾動(dong)(dong)(dong)體的形(xing)狀，滾動(dong)(dong)(dong)軸承分為球軸承和滾子軸承兩大(da)類。

    早期的(de)直線運動(dong)軸(zhou)承(cheng)(cheng)形式，就(jiu)是(shi)在一排撬板下放置一排木桿。現代直線運動(dong)軸(zhou)承(cheng)(cheng)使(shi)用的(de)是(shi)同一種工作原理，只不過有時用球代替(ti)(ti)滾子。最簡單的(de)旋轉軸(zhou)承(cheng)(cheng)是(shi)軸(zhou)套軸(zhou)承(cheng)(cheng)，它(ta)只是(shi)一個夾在車(che)輪(lun)(lun)和輪(lun)(lun)軸(zhou)之間的(de)襯套。這種設計隨后被滾動(dong)軸(zhou)承(cheng)(cheng)替(ti)(ti)代，就(jiu)是(shi)用很多圓柱(zhu)形的(de)滾子替(ti)(ti)代原先的(de)襯套，每個滾動(dong)體就(jiu)像一個單獨的(de)車(che)輪(lun)(lun)。

    調心滾子軸承有(you)兩列對稱型(xing)球面滾子，主要承(cheng)受徑向載(zai)荷(he)，同(tong)(tong)(tong)時也能(neng)(neng)承(cheng)受任一方向的軸(zhou)(zhou)向載(zai)荷(he)，但(dan)不(bu)能(neng)(neng)承(cheng)受純軸(zhou)(zhou)向載(zai)荷(he)。該(gai)類軸(zhou)(zhou)承(cheng)外圈滾道是球面形，故其調(diao)心性能(neng)(neng)良好，能(neng)(neng)補償同(tong)(tong)(tong)軸(zhou)(zhou)度(du)誤差，當軸(zhou)(zhou)受力彎曲或安裝不(bu)同(tong)(tong)(tong)心時軸(zhou)(zhou)承(cheng)仍可正常使(shi)用，調(diao)心性隨(sui)軸(zhou)(zhou)承(cheng)尺寸系列不(bu)同(tong)(tong)(tong)而異，一般所(suo)允許的調(diao)心角(jiao)度(du)為(wei)1~2.5度(du) ，該(gai)類型(xing)軸(zhou)(zhou)承(cheng)的負(fu)(fu)荷(he)能(neng)(neng)力較大，除能(neng)(neng)承(cheng)受徑向負(fu)(fu)荷(he)外軸(zhou)(zhou)承(cheng)還能(neng)(neng)承(cheng)受雙向作(zuo)用的軸(zhou)(zhou)向負(fu)(fu)荷(he)，具有(you)較好的抗沖擊能(neng)(neng)力，一般來說調(diao)心滾子軸(zhou)(zhou)承(cheng)所(suo)允許的工(gong)作(zuo)轉速(su)較低。適用于(yu)重載(zai)或振動載(zai)荷(he)下工(gong)作(zuo)。