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31 条记录 (耗时 0.01 秒)

    Shell type needle roller bearing and method of producing the same
    1.
    发明授权
    Shell type needle roller bearing and method of producing the same 失效
    壳型滚针轴承及其制造方法

    公开(公告)号：US5848846A

    公开(公告)日：1998-12-15

    申请号：US900176

    申请日：1997-07-25

    申请人： Akira Sugiyama ,  Yukihiro Yamada

    发明人： Akira Sugiyama ,  Yukihiro Yamada

    IPC分类号： F16C19/46 ,  F16C33/30 ,  F16C33/54 ,  F16C33/64 ,  F16C43/06 ,  F16C43/08

    CPC分类号： F16C33/30 ,  F16C19/466 ,  F16C33/543 ,  F16C33/64 ,  F16C43/086 ,  Y10T29/4968 ,  Y10T29/49707

    摘要： A method of producing a shell type needle roller bearing having a shell type outer ring whose opposite ends in the axial direction thereof are bent radially inwardly to form flanges; and a plurality of needle rollers arranged along an inner circumferential area of the outer ring. The method comprises the steps of: a) bending one end of the outer ring radially inwardly to form a flange portion on one end of the outer ring for forming the outer ring in the specified shape; b) assembling hardened/tempered needle rollers or un-hardened needle rollers into the outer ring; c) bending other end of the outer ring radially inwardly to form another flange to form a final shape of the needle roller bearing; d) performing a carbonitriding treatment to the assembled needle roller bearing; and then e) performing hardening and tempering treatments to the assembled needle roller bearing.

    摘要翻译： 一种壳体型滚针轴承的制造方法，其具有壳体型外圈，其轴向相反端径向向内弯曲以形成凸缘; 以及沿着所述外圈的内周面区域布置的多个针辊。 该方法包括以下步骤：a）径向向内弯曲外环的一端，在外圈的一端形成凸缘部分，以形成规定形状的外圈; b）将硬化/回火的滚针或未硬化的滚针组装到外圈中; c）径向向内弯曲外环的另一端以形成另一个凸缘，以形成滚针轴承的最终形状; d）对组装的滚针轴承进行碳氮共渗处理; 然后e）对组装的滚针轴承进行淬火和回火处理。

    Method for manufacturing ball bearings; a sintered metal outer race preform for use therein; and a ball bearing produced thereby
    5.
    发明授权
    Method for manufacturing ball bearings; a sintered metal outer race preform for use therein; and a ball bearing produced thereby 失效
    制造球轴承的方法; 用于其的烧结金属外壳预制件; 和一个球轴承生产

    公开(公告)号：US4082382A

    公开(公告)日：1978-04-04

    申请号：US724017

    申请日：1976-09-16

    申请人： Nick A. Aromando

    发明人： Nick A. Aromando

    IPC分类号： B23P15/00 ,  F16C33/64 ,  F16C33/36

    CPC分类号： B23P15/003 ,  F16C33/64 ,  F16C43/086 ,  F16C2220/20

    摘要： A method for manufacturing ball bearings and a sintered metal outer race preform for use therein in which the method comprises the steps of forming a generally annular sintered metal outer race preform, the preform preferably having a composition of a 97-99.4% iron and 0.60 to 1.00% carbon; the preform being fabricated from sintered metal powder and having a sinter density of approximately 6.1 to 6.5 grams per cubic centimeter and a sintered hardness of Rb 20 to 40; the preform having arcuate, concentrically disposed inner and outer annular faces, the inner face having a radially inwardly disposed curvilinear portion on one side thereof, and an annular side face on the side of the preform opposite the said curvilinear portion joining the inner and outer arcuate faces; the said side face having a concentric generally wedge-shaped annular flange thicker at its bottom than at its top and having a wall distal to the said annular face, preferably formed as part of a generally V-shaped groove in the said side face, the said wall distal to the said inner annular face being straight from top to bottom and extending at an oblique angle of preferably approximately 45.degree. to the normal to the said side face; positioning an inner face within the annulus defined by the outer race; positioning a plurality of balls intermediate the inner and outer races; and deforming at least a portion of the said flange radially inwardly to generate an entrapment for the said balls between the said inner face of the preform and the inner race; the said deformation preferably being achieved by advancing a generally annular deforming tool having an annular face, straight from its top to its bottom, disposed at an angle of approximately 5.degree. from the plane of said side face of the preform, perpendicularly thereto to engage the top of said flange until it is deformed radially inwardly sufficiently to entrap the balls to the extent desired.

    Method for manufacturing ball bearings having a sintered metal powder outer race
    6.
    发明授权
    Method for manufacturing ball bearings having a sintered metal powder outer race 失效
    具有烧结金属粉末外圈的球轴承的制造方法

    公开(公告)号：US4017951A

    公开(公告)日：1977-04-19

    申请号：US435683

    申请日：1974-01-23

    申请人： Nick A. Aromando

    发明人： Nick A. Aromando

    IPC分类号： B23P15/00 ,  F16C33/64 ,  B21D53/10

    CPC分类号： F16C33/64 ,  B23P15/003 ,  F16C43/086 ,  Y10T29/49682

    摘要： A method for manufacturing ball bearings and a sintered metal outer race preform for use therein in which the method comprises the steps of forming a generally annular sintered metal outer race preform, the preform preferably having a composition of a 97-99.4% iron and 0.60 to 1.00% carbon; the preform being fabricated from sintered metal powder and having a sinter density of approximately 6.1 to 6.5 grams per cubic centimeter and a sintered hardness of Rb 20 to 40; the preform having arcuate, concentrically disposed inner and outer annular faces, the inner face having a radially inwardly disposed curvilinear portion on one side thereof, and an annular side face on the side of the preform opposite the curvilinear portion joining the inner and outer arcuate faces; the side face on the preform having a concentric generally wedge-shaped annular flange thicker at its bottom than at its top and having a wall distal to the inner annular face, preferably formed as part of a generally V-shaped groove in the side face, which wall is straight from top to bottom and extends at an oblique angle of preferably approximately 45.degree. to the normal to the side face; positioning an inner race within the opening defined by the outer race; positioning a plurality of balls intermediate the inner and outer races; and deforming at least a portion of the flange radially inwardly to generate an entrapment for the said balls between the inner annular face of the preform and the inner race; such deformation preferably being achieved by advancing a generally annular deforming tool having an annular working wall, straight from its top to its bottom, disposed at an angle of approximately 5.degree. from the plane of said side face of the preform, perpendicularly thereto to engage the top of said flange until it is deformed radially inwardly sufficiently to entrap the balls to the extent desired.

    摘要翻译： 一种用于制造球轴承的方法和用于其中的烧结金属外圈预制件，其中所述方法包括以下步骤：形成大致环形的烧结金属外座圈预制件，所述预制件优选具有97-99.4％的铁和0.60至 1.00％碳; 该预制件由烧结金属粉末制成，烧结密度约为6.1至6.5克/立方厘米，烧结硬度为Rb 20至40; 所述预成型件具有弧形同心设置的内环形面和外环形面，内表面在其一侧上具有径向向内设置的曲线部分，并且在预成型件的与连接内外弓形面的曲线部分相对的侧面上的环形侧面 ; 预型件上的侧面具有在其底部比在其顶部处更厚的同心的大致楔形的环形凸缘，并且具有远离内部环形面的壁，优选地形成为侧面中的大致V形槽的一部分， 该壁从上到下是直的，并且以相对于侧面的法线优选地大约45°的倾斜角延伸; 将内圈定位在由外圈限定的开口内; 将多个球定位在内圈和外圈之间; 并且使所述凸缘的至少一部分径向向内变形，以在所述预成型件的内环形面与所述内座圈之间产生所述滚珠的截留; 这种变形优选地通过使具有环形工作壁的大致环形的变形工具从其顶部到底部直线地设置成与预成型件的所述侧面的垂直方向成大约5°的角度来实现，从而与 所述凸缘的顶部，直到其径向向内变形，足以将球捕获到所需的程度。