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  • Product name:發動機搖(yáo)臂用滾針軸承
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在汽車的心髒(zāng)部位的發動機追求(qiú)的是高(gāo)輸出、低燃費、低噪音等高性能化,並且能夠環保。在發動(dòng)機內燃料與燃燒氣體的吸、排上起(qǐ)著重要作用的是承擔閥正常開、關的凸輪(lún)和搖(yáo)臂。凸輪是不停轉(zhuǎn)動的機構,以前的滑塊式搖臂(bì)力是從凸輪傳(chuán)遞到搖臂(bì)的被喻為“滑動接觸”。現在用摩擦更小的“滾動接觸”替代,也就是裝有滾針軸承的滾針(zhēn)式搖臂。與滑塊式搖臂相比,摩擦損耗大約降低8%,燃料利用率大(dà)約提高3%,還有通過對(duì)表麵的特殊加工,使潤滑油的保持性(xìng)能提高(gāo),接觸部的壽(shòu)命(mìng)飛(fēi)躍式的延長(zhǎng)。並且朝著(zhe)實現汽車(chē)零部件免修理化方向作出了巨(jù)大的貢獻。  

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