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    • 2. 发明授权
    • Spherical member polishing apparatus
    • 球形件抛光装置
    • US5520573A
    • 1996-05-28
    • US447241
    • 1995-05-22
    • Yuichi SumitaGentei Inoue
    • Yuichi SumitaGentei Inoue
    • B24B57/02B24B11/06B24B37/025B24B7/00
    • B24B37/025B24B11/06
    • A spherical member polishing apparatus has a fixed disk which is disposed in opposition to a rotating disk with a predetermined clearance. The rotating disk is rotated, and spherical members are clamped and pressurized between the rotating disk and the fixed disk for roll-polishing the spherical members. A plurality of grooves are formed along a circumferential direction of the fixed disk, and a plurality of working-fluid supply ports are randomly formed along the circumferential direction between the grooves, between the groove and an outer peripheral portion of the fixed disk, and between the groove and an inner peripheral portion of the fixed disk. The working fluid is supplied through the working-fluid supply ports to the fixed disk. A large number of spherical members are polished at a high precision, while a variation in polishing precision and the like are avoided as much as possible.
    • 球面抛光装置具有固定盘,该固定盘以与预定间隙的旋转盘相对的方式设置。 旋转盘旋转,球面构件在旋转盘和固定盘之间被夹紧和加压,用于滚动抛光球形构件。 沿固定盘的圆周方向形成多个槽,多个工作流体供给口沿着圆周方向随机地形成在槽之间,槽与固定盘的外周部之间,并且在 槽和固定盘的内周部分。 工作流体通过工作流体供应端口供应到固定盘。 大量球形部件被高精度地抛光,同时尽可能地避免了抛光精度等的变化。
    • 5. 发明授权
    • Rolling bearing
    • 滚动轴承
    • US4916751A
    • 1990-04-10
    • US314907
    • 1989-02-24
    • Yuichi SumitaYukio OhuraKatsuya Toma
    • Yuichi SumitaYukio OhuraKatsuya Toma
    • F16C33/66F16C33/30F16C33/58F16C33/60F16C33/64
    • F16C33/64F16C33/585F16C33/60F16C2240/40
    • At least one of the contacting surfaces of an outer ring, an inner ring and surfaces of rolling elements of a rolling bearing are formed with a plurality of groove-shaped recess portions having a depth of 0.0005 to 0.008 mm, and with smooth surface portions having a roughness of 0.08 .mu.mRa partitioned by the groove-shaped recess portions. The groove-shaped recess portions do not disappear completely during rotation. In manufacturing the rolling bearing, a multi-process superfinishing operation is used in which firstly, the groove-shaped recess portions, having a depth of 0.0005 to 0.008 mm, are formed in at least the raceway surface of the outer ring of the rolling members by using a rough particle whetstone having an average particle size of 20 to 40 .mu.m, and subsequently, the smooth surface portions having the roughness equal to or smaller than 0.08 .mu.mRa and partitioned by the many groove-shaped recess portions are formed by using a minute particle whetstone for finishing work having an average particle size of 0 to 8 .mu.m.
    • 外圈,内圈和滚动轴承的滚动体的表面的至少一个接触表面形成有多个深度为0.0005〜0.008mm的槽状凹部,平滑面部具有 由槽形凹部分隔的0.08μmm R a的粗糙度。 在旋转期间槽形凹部不完全消失。 在制造滚动轴承的过程中,首先使用深度为0.0005〜0.008mm的槽状凹部至少形成在滚动体的外圈的滚道面上 通过使用平均粒径为20〜40μm的粗颗粒磨石,然后通过使用多个凹槽状的凹部形成有粗糙度等于或小于0.08μmRa并被许多凹槽形凹部分隔的光滑表面部分 平均粒径为0〜8μm的精加工用微粒磨石。