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公开(公告)号：EP1319869B1
公开(公告)日：2005-05-04
申请号：EP02425645.5
申请日：2002-10-25
IPC分类号： F16H25/22
CPC分类号： F16C33/3713 , F16C19/20 , F16H25/2238 , Y10T74/19749 , Y10T74/19777
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公开(公告)号：EP1477707A1
公开(公告)日：2004-11-17
申请号：EP03425315.3
申请日：2003-05-16
CPC分类号： F16H25/2418 , F16H25/2204 , Y10T74/18712 , Y10T74/19753
摘要： A ball screw has a spiral casing (6) mounted coaxially with a shaft (2); a set of balls interposed between the shaft (2) and the casing (6); and two seals (16) fitted between the shaft (2) and the casing (6) to define, together with the shaft (2) and the casing (6), a chamber (17) for containing lubricant; each seal (16) being defined by an annular member (18) made of a first material having a first coefficient of thermal expansion, and by at least one insert (19) located inside the annular member (18) and made of a second material having a second coefficient of thermal expansion lower than the first coefficient.
摘要翻译： 滚珠丝杠具有与轴（2）同轴安装的螺旋壳体（6）; 插入在所述轴（2）和所述壳体（6）之间的一组滚珠; 以及安装在所述轴（2）和所述壳体（6）之间以与所述轴（2）和所述壳体（6）一起限定的两个密封件（16），用于容纳润滑剂的腔室（17） 每个密封件（16）由由具有第一热膨胀系数的第一材料制成的环形构件（18）和位于环形构件（18）内部的至少一个插入件（19）限定，并由第二材料制成 具有低于第一系数的第二热膨胀系数。
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3.发明公开Ball screw with long duration and reduced noisiness 无效Kugelgewindetrieb mit hoher Lebendsdauer und reduziertemGeräusch
公开(公告)号：EP1319869A1
公开(公告)日：2003-06-18
申请号：EP02425645.5
申请日：2002-10-25
IPC分类号： F16H25/22
CPC分类号： F16C33/3713 , F16C19/20 , F16H25/2238 , Y10T74/19749 , Y10T74/19777
摘要： Ball screw with long duration and reduced noisiness, in particular for aerospace and industrial applications, comprising load-bearing balls (3) made of ceramic material alternating, one by one, with spacer balls (4) made of material having low volume mass, no greater than 3 g/cm 3 , and having a smaller diameter than that of the load-bearing balls.
摘要翻译： 具有长持续时间和噪音降低的滚珠丝杠，特别是对于航天和工业应用，包括由陶瓷材料制成的承载滚珠（3），一个接一个地与由体积小的材料制成的隔离球（4） 大于3g / cm 3，并且具有比承载球的直径小的直径。
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