Linear motion device
    1.
    发明申请
    Linear motion device 审中-公开
    直线运动装置

    公开(公告)号:US20060230856A1

    公开(公告)日:2006-10-19

    申请号:US11433423

    申请日:2006-05-15

    IPC分类号: F16H1/24

    摘要: A ball screw (1) as a linear motion device according to the invention has retaining pieces (21) each having two concave surfaces (23) facing adjacent ones of rolling elements (9) respectively. Each of the retaining pieces (21) is disposed between adjacent ones of the rolling elements (9). A carbonitrided layer containing residual austenite of 15-40% by volume is provided in the surface layer of each of the rolling elements (9).

    摘要翻译: 作为根据本发明的直线运动装置的滚珠丝杠(1)具有分别具有面向相邻滚动体(9)的两个凹面(23)的保持片(21)。 每个保持片(21)设置在相邻的滚动元件(9)之间。 在各滚动体(9)的表面层设置含有15〜40体积%的残留奥氏体的碳氮共渗层。

    Rolling bearing
    2.
    发明申请
    Rolling bearing 审中-公开
    滚动轴承

    公开(公告)号:US20050207687A1

    公开(公告)日:2005-09-22

    申请号:US10895410

    申请日:2004-07-21

    IPC分类号: F16C29/06 F16C33/58 F16C33/62

    摘要: The centerline average roughness of the raceway surface of at least the fixed ring of bearing rings is controlled to be 0.025 to 0.075 μmRa, thereby suppressing the rotation slip of the rolling elements so as to prevent flaking that is accompanied by a structural change. This enables prolongation of the life of bearings. At least the fixed ring of the bearing rings contains, as alloy ingredients at a ratio of from 0.50 to 1.20% by mass of carbon, from 0.10 to 1.50% by mass of silicon, from 0.1 to 2.0% by mass of manganese, from 3.0 to 6.0% by mass of chromium, 2.0% by mass or less of molybdenum, and 1.0% by mass or less of vanadium, whereby the necessary hardness is obtained and the structure is stabilized. This enables prolongation of the life of bearings.

    摘要翻译: 将至少轴承环的固定环的轨道面的中心线平均粗糙度控制在0.025〜0.075μmRa,从而抑制滚动体的旋转滑动,以防止伴随结构变化的剥落。 这样可以延长轴承的使用寿命。 至少所述轴承环的固定环包含作为合金成分的比例为0.50〜1.20质量%的碳,0.10〜1.50质量%的硅,0.1〜2.0质量%的锰,3.0 至6.0质量%的铬,2.0质量%以下的钼和1.0质量%以下的钒,由此得到所需的硬度,结构稳定。 这样可以延长轴承的使用寿命。

    Rolling Bearing
    4.
    发明申请
    Rolling Bearing 有权
    滚动轴承

    公开(公告)号:US20070206892A1

    公开(公告)日:2007-09-06

    申请号:US11660520

    申请日:2005-07-19

    IPC分类号: F16C19/00

    摘要: A grease composition having an apparent viscosity at −30° C. of 5 to 200 Pa·s is sealed in a rolling bearing which retains a plurality of rolling elements between an inner ring and an outer ring in such a way that the rolling elements can freely roll. Thereby, there is provided a rolling bearing which has a satisfactory lubricating performance and generates less abnormal noise even under a low temperature of around −40° C.

    摘要翻译: 在-30℃下的表观粘度为5〜200Pa·s的润滑脂组合物被密封在滚动轴承中,滚动轴承将多个滚动元件保持在内圈和外圈之间,使得滚动元件可以 自由滚动 因此,提供了一种具有令人满意的润滑性能的滚动轴承,甚至在-40℃左右的低温下也产生较少的异常噪声。