Bearing assembly with pin having composite circular outer profile
    1.
    发明授权
    Bearing assembly with pin having composite circular outer profile 失效
    轴承组件,销具有复合圆形外轮廓

    公开(公告)号:US07431508B2

    公开(公告)日:2008-10-07

    申请号:US11211805

    申请日:2005-08-25

    IPC分类号: F16C33/10

    摘要: A bearing assembly includes a roller bearing having a bore, and a pin positioned within the bore. The pin has a composite outer profile defined by a first substantially circular segment with a first axis of rotation, and a second substantially circular segment with a second axis of rotation of a different radius. The second axis of rotation is offset from the first axis of rotation.

    摘要翻译: 轴承组件包括具有孔的滚子轴承和位于孔内的销。 销具有由具有第一旋转轴线的第一基本上圆形的段限定的复合外轮廓和具有不同半径的第二旋转轴线的第二基本上圆形的段。 第二旋转轴线偏离第一旋转轴线。

    Roller pin materials for enhanced cam durability
    2.
    发明授权
    Roller pin materials for enhanced cam durability 失效
    滚子针材料,增强凸轮耐用性

    公开(公告)号:US06210503B1

    公开(公告)日:2001-04-03

    申请号:US08970102

    申请日:1997-11-13

    IPC分类号: C22F108

    摘要: A low friction, wear-resistant pin for a cam follower roller useful in the injector and valve trains of internal combustion engines, particularly diesel engines, to enhance cam durability and life is provided. The material selected for the pin, which is selected for its wear resistance, its corrosion resistance, its low friction, and its ability to embed hard debris and other oil contaminants without scuffing, has been demonstrated to improve cam life dramatically. A preferred roller pin material that achieves this objective is a copper-based alloy, most preferably a leaded manganese silicon bronze.

    摘要翻译: 提供了一种用于凸轮从动辊的低摩擦耐磨销,其用于内燃机,特别是柴油发动机的喷油器和阀门系列,以提高凸轮的耐久性和使用寿命。 被选择用于其耐磨性,耐腐蚀性,低摩擦力以及在没有磨损的情况下嵌入硬碎屑和其他油污染物的能力的销的材料已经被证明可以显着地改善凸轮寿命。 实现该目的的优选的滚针材料是铜基合金,最优选是含铅锰硅青铜。

    Induction hardened microalloy steel having enhanced fatigue strength
properties
    3.
    发明授权
    Induction hardened microalloy steel having enhanced fatigue strength properties 失效
    具有增强疲劳强度性能的感应淬火微合金钢

    公开(公告)号:US5906691A

    公开(公告)日:1999-05-25

    申请号:US913534

    申请日:1997-09-16

    摘要: Improved fatigue strength properties are achieved in an induction hardened microalloy steel useful for demanding service environments. The microalloy steel has low carbon and sulfur contents, comprising in % by weight, 0.15% to 0.45% C, 0.50% to 1.60% Mn, up to 0.20% V, 0.0001% to 0.01% S, balance Fe. The material is fabricated to a selected configuration, such as an engine crankshaft, for example. Selected surfaces of the fabricated article are hardened by induction heating. The article can be used directly after induction hardening or it may be tempered at low to moderate temperatures of from about 100.degree. C. (200.degree. F.) to 290.degree. C. (550.degree. F.) to achieve a desired surface hardness and compressive residual stress level. The controlled alloy chemistry and low tempering temperature provide a substantial increase in bending fatigue strength over conventional higher carbon grade steels.

    摘要翻译: PCT No.PCT / US97 / 11386 Sec。 371日期:1997年9月16日 102(e)1997年9月16日PCT PCT 1997年7月1日PCT公布。 公开号WO98 / 00570 日期1998年1月8日在用于要求苛刻的使用环境的感应淬火微合金钢中实现了改进的疲劳强度性能。 微合金钢具有低碳和硫含量,包括重量%,0.15%至0.45%C,0.50%至1.60%Mn,至多0.20%V,0.0001%至0.01%S,余量为Fe。 该材料被制造成例如诸如发动机曲轴的选定构造。 制成品的选定表面通过感应加热而硬化。 该制品可以在感应淬火后直接使用,或者可以在约100℃(200°F)至290℃(550°F)的低至中等温度下回火,以获得所需的表面硬度和 压缩残余应力水平。 受控的合金化学和低回火温度与常规的较高碳钢一样,弯曲疲劳强度大大提高。