詳細(xì)介紹 無內(nèi)圈滾針軸承needle roller bearings without inner ringrna49 系列軸徑shaft diametermm型號designation重量massg尺寸dimensions基本額定載荷basic load ratings極限轉(zhuǎn)速limiting speedrpm原有型號original designationfwdcr min.動 crdynamic靜 corstaticmmn14rna4900161422130.38.59.225000464490016rna4901171624130.39.410.924000464490120rna4902212028130.310.613.622000464490222rna4903222230130.31114.621000464490325rna4904522537170.32125.517000464490428rna49/22502839170.322.829.516000--30rna4905613042170.323.631.515000464490532rna49/28733245170.324.433.513000--35rna4906693547170.32.5035.513000464490640rna49/32894052200.630.547.512000--42rna49071074255200.631.55010000464490748rna49081404862220.643679500464490852rna49091825268220.645738500464490958rna49101635872220.647808000464491063rna49112556380251581007500464491168rna4912 2756885251601087000464491272rna49133127290251611126500464491380rna491446080100301841566000464491485rna491548985105301861625500464491590rna4916516901103018917450004644916100rna4917657100120351.111123748004644917105rna4918745105125351.111425046004644918110rna4919719110130351.111626044004644919115rna49201150115140401.112827041004644920125rna49221240125150401.113229038004644922135rna49241860135165451.118139034004644924