沖承座一(yi)般由(you)內(nei)圈(quan)(quan)、外圈(quan)(quan)、沖(chong)壓(ya)體(ti)(ti)與保持(chi)架(jia)等(deng)四部分構成。內(nei)圈(quan)(quan)的(de)(de)效(xiao)(xiao)果(guo)是與軸(zhou)(zhou)(zhou)相配合(he)并與軸(zhou)(zhou)(zhou)一(yi)同旋轉；外圈(quan)(quan)效(xiao)(xiao)果(guo)是與軸(zhou)(zhou)(zhou)承(cheng)(cheng)座(zuo)相配合(he)，起支撐效(xiao)(xiao)果(guo)；沖(chong)壓(ya)體(ti)(ti)是借助于(yu)保持(chi)架(jia)均勻的(de)(de)將沖(chong)壓(ya)體(ti)(ti)散布在內(nei)圈(quan)(quan)和外圈(quan)(quan)之間，其形(xing)狀巨細和數量直接影(ying)響(xiang)著沖(chong)承(cheng)(cheng)的(de)(de)使(shi)用功(gong)能(neng)和壽(shou)數；保持(chi)架(jia)能(neng)使(shi)沖(chong)壓(ya)體(ti)(ti)均勻散布，避免沖(chong)壓(ya)體(ti)(ti)掉落，引導沖(chong)壓(ya)體(ti)(ti)旋轉起光(guang)滑效(xiao)(xiao)果(guo)。雙列(lie)向心(xin)(xin)(xin)(xin)球(qiu)(qiu)面球(qiu)(qiu)軸(zhou)(zhou)(zhou)承(cheng)(cheng)和雙列(lie)向心(xin)(xin)(xin)(xin)球(qiu)(qiu)面滾子軸(zhou)(zhou)(zhou)承(cheng)(cheng)具有杰出的(de)(de)調(diao)心(xin)(xin)(xin)(xin)功(gong)能(neng)。滾子軸(zhou)(zhou)(zhou)承(cheng)(cheng)和滾針軸(zhou)(zhou)(zhou)承(cheng)(cheng)不答應(ying)(ying)內(nei)、外圈(quan)(quan)軸(zhou)(zhou)(zhou)線(xian)有相對歪(wai)斜(xie)。各(ge)類(lei)沖(chong)承(cheng)(cheng)答應(ying)(ying)的(de)(de)歪(wai)斜(xie)角不一(yi)樣，如單列(lie)向心(xin)(xin)(xin)(xin)球(qiu)(qiu)軸(zhou)(zhou)(zhou)承(cheng)(cheng)為(wei)8′～16′,雙列(lie)向心(xin)(xin)(xin)(xin)球(qiu)(qiu)面球(qiu)(qiu)軸(zhou)(zhou)(zhou)承(cheng)(cheng)為(wei)2°～3°， 圓(yuan)錐滾子軸(zhou)(zhou)(zhou)承(cheng)(cheng)≤2′。與滑動(dong)(dong)軸(zhou)(zhou)(zhou)承(cheng)(cheng)對比，沖(chong)承(cheng)(cheng)的(de)(de)徑向尺度較大，減振才能(neng)較差，高(gao)速時(shi)壽(shou)數低，動(dong)(dong)靜較大。軸(zhou)(zhou)(zhou)線(xian)相對軸(zhou)(zhou)(zhou)承(cheng)(cheng)座(zuo)孔線(xian)歪(wai)斜(xie)時(shi)，軸(zhou)(zhou)(zhou)承(cheng)(cheng)仍(reng)能(neng)正常作業(ye)的(de)(de)才能(neng)。