表3-4-9NNU型內(nèi)圈無(wú)擋邊的雙列圓柱滾子軸承中外對(duì)照主要尺寸/mm中國(guó)軸承代號(hào)日本NSKNTN日本KOYO日本NACHI重量/kg極限轉(zhuǎn)速/(r/min)dDB油潤(rùn)滑脂潤(rùn)滑10014040NNU4920NNU4920NNU4920NNU49202.00200095010514540NNU4921NNU4921NNU4921NNU49212.15190090011015040NNU4922NNU4922N (共 1347 字) [閱讀本文] >>