Plastic bearing
    12.
    发明授权
    Plastic bearing 失效
    塑料轴承

    公开(公告)号:US3864197A

    公开(公告)日:1975-02-04

    申请号:US30629572

    申请日:1972-11-14

    Inventor: SHOBERT SAMUEL M

    Abstract: A reinforced plastic bearing comprising a generally cylindrical structure of plastic reinforced with glass fiber, provided with a tubular layer of polytetrafluoroethylene fibers embedded and secured in the plastic. In the fabrication of this bearing, the polytetrafluoroethylene fibers are intertwined and formed into a cord having an irregular outer surface. The intertwining binds the fibers into position to inhibit relative motion thereof such that the cord is characterized by multiple length portions of the fibers in the outer cord surface, having opposite end portions anchored in position. This cord is formed into a woven fabric which becomes said tubular layer and which is impregnated with the aforesaid plastic in liquid form, the plastic flowing into the irregularities and interstices in the fabric and cord so as intimately to enrobe substantial portions of the cords and fibers, thereby securing them in position relative to each other. One surface of the fabric tubular layer has exposed the lubricous fibers which provide the bearing surface. Retention of the polytetrafluoroethylene fibers against delamination is, in one preferred method, maximized by use of a mandrel having a highly polished layer of polytetrafluoroethylene thereon. In removing the hardened bearing composite from the mandrel, the integrity of the plastic matrix which secures the polytetrafluoroethylene fibers in place is maintained.

    Abstract translation: 一种增强塑料轴承,其包括用玻璃纤维增​​强的塑料的大致圆柱形结构,其具有嵌入并固定在塑料中的聚四氟乙烯纤维的管状层。 在制造该轴承时,聚四氟乙烯纤维缠结并形成具有不规则外表面的帘线。 相互缠绕的纤维将纤维粘合到阻止其相对运动的位置,使得帘线的特征在于外帘线表面中纤维的多个长度部分,其相对端部锚固在适当位置。 该帘线形成为成为所述管状层并且以上述液体形式浸渍的机织织物,塑料流入织物和帘线中的凹凸和间隙,从而使帘线和纤维的主要部分 从而将它们相对于彼此固定在适当的位置。

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