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 表3-4-9NNU型內圈無擋邊的雙列圓柱滾子軸承中外對照主要尺寸/mm中國軸承代號日本NSKNTN日本KOYO日本NACHI重量/kg極限轉速/(r/min)dDB油潤滑脂潤滑10014040NNU4920NNU4920NNU4920NNU49202.00200095010514540NNU4921NNU4921NNU4921NNU49212.15190090011015040NNU4922NNU4922N (共 1347 字) [閱讀本文] >>
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 表3-4-9NNU型內圈無擋邊的雙列圓柱滾子軸承中外對照主要尺寸/mm中國軸承代號日本NSKNTN日本KOYO日本NACHI重量/kg極限轉速/(r/min)dDB油潤滑脂潤滑10014040NNU4920NNU4920NNU4920NNU49202.00200095010514540NNU4921NNU4921NNU4921NNU49212.15190090011015040NNU4922NNU4922N (共 1347 字) [閱讀本文] >>