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公开(公告)号：US08534920B2
公开(公告)日：2013-09-17
申请号：US12736592
申请日：2009-04-22
CPC分类号： F16C33/3875 , F16C19/06 , F16C33/3806 , F16C33/414 , F16C33/6674 , F16C33/6681 , F16C33/7893 , F16C2226/74 , F16C2240/30 , F16C2240/46
摘要： A rolling bearing includes an outer ring, an inner ring, balls and a cage. The cage includes an annular portion which is disposed at the end portion in the axial direction thereof, and a plurality of pillar portions which protrude to the coaxial direction from the side surface on the one side in the axial direction of the annular portion and are arranged in the circumferential direction thereof so as to form therebetween pockets each for housing a rolling element, wherein a seal gap for restricting the flowing of lubricant is formed between the first annular portion and one of or both the outer ring and the inner ring not guiding the cage.
摘要翻译： 滚动轴承包括外圈，内圈，球和保持架。 保持架包括设置在其轴向端部的环形部分和从环形部分的轴向方向上的一侧的侧表面向同轴方向突出的多个柱部分，并且布置成 在其周向上形成用于容纳滚动元件的凹穴，其中用于限制润滑剂流动的密封间隙形成在第一环形部分和外环和内环中的一个或两个上，而不引导 笼。
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公开(公告)号：US20090178630A1
公开(公告)日：2009-07-16
申请号：US12318839
申请日：2009-01-09
申请人： Mikio Kuromatsu , Hiroshi Ueno
发明人： Mikio Kuromatsu , Hiroshi Ueno
IPC分类号： F01L1/047
CPC分类号： F01L1/047 , F01L1/053 , F01L2001/0476 , F01L2103/00 , F16C19/54 , F16C19/56 , F16C2360/18 , Y10T29/49293
摘要： A camshaft apparatus includes rolling bearings which support a camshaft rotatably, whereby a reduction in torque when an engine is started or is running at low speeds, a reduction in vibration of the camshaft and an extension of the lives of the bearings can be realized. In the rolling bearings, one rolling bearing is made to constitute a main ball bearing which restrains an axial relative movement of the camshaft relative to a shaft case, and the other rolling bearings are made to constitute a plurality of needle roller bearings, whereby a mechanical movement of the camshaft in an axial direction can be restricted in an ensured fashion by the main ball bearing. As to relative displacements due to thermal expansion or contraction of the camshaft and/or the shaft case, an axial relative displacement can be absorbed by needle rollers relatively moving on inter-cam outer circumferential surface areas.
摘要翻译： 凸轮轴装置包括可旋转地支撑凸轮轴的滚动轴承，从而可以实现发动机起动或低速行驶时的转矩减小，凸轮轴的振动减小和轴承的寿命延长。 在滚动轴承中，制造一个滚动轴承构成主滚珠轴承，其抑制凸轮轴相对于轴壳的轴向相对运动，而其它滚动轴承构成多个滚针轴承，由此机械 可以通过主球轴承以确定的方式限制凸轮轴在轴向方向上的移动。 对于由于凸轮轴和/或轴壳体的热膨胀或收缩引起的相对位移，轴向相对位移可以被相对于凸轮外圆周表面区域上相对移动的滚针吸收。
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公开(公告)号：US08051821B2
公开(公告)日：2011-11-08
申请号：US12318839
申请日：2009-01-09
申请人： Mikio Kuromatsu , Hiroshi Ueno
发明人： Mikio Kuromatsu , Hiroshi Ueno
IPC分类号： F01L1/04
CPC分类号： F01L1/047 , F01L1/053 , F01L2001/0476 , F01L2103/00 , F16C19/54 , F16C19/56 , F16C2360/18 , Y10T29/49293
摘要： A camshaft apparatus includes rolling bearings which support a camshaft rotatably, whereby a reduction in torque when an engine is started or is running at low speeds, a reduction in vibration of the camshaft and an extension of the lives of the bearings can be realized. In the rolling bearings, one rolling bearing is made to constitute a main ball bearing which restrains an axial relative movement of the camshaft relative to a shaft case, and the other rolling bearings are made to constitute a plurality of needle roller bearings, whereby a mechanical movement of the camshaft in an axial direction can be restricted in an ensured fashion by the main ball bearing. As to relative displacements due to thermal expansion or contraction of the camshaft and/or the shaft case, an axial relative displacement can be absorbed by needle rollers relatively moving on inter-cam outer circumferential surface areas.
摘要翻译： 凸轮轴装置包括可旋转地支撑凸轮轴的滚动轴承，从而可以实现发动机起动或低速行驶时的转矩减小，凸轮轴的振动减小和轴承的寿命延长。 在滚动轴承中，制造一个滚动轴承构成主滚珠轴承，其抑制凸轮轴相对于轴壳的轴向相对运动，而其它滚动轴承构成多个滚针轴承，由此机械 可以通过主球轴承以确定的方式限制凸轮轴在轴向方向上的移动。 对于由于凸轮轴和/或轴壳体的热膨胀或收缩引起的相对位移，轴向相对位移可以被相对于凸轮外圆周表面区域上相对移动的滚针吸收。
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