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    • 1. 发明授权
    • Ball bearing with controlled dynamic imbalance
    • 具有受控动态不平衡的球轴承
    • US5586827A
    • 1996-12-24
    • US583398
    • 1996-01-05
    • Tetsuo UnnoYoshio ShodaTatsunobu Momono
    • Tetsuo UnnoYoshio ShodaTatsunobu Momono
    • F16C19/06F16C33/32F16C19/00
    • F16C19/06F16C33/32
    • 1. A ball bearing comprising; a first race ring having a surface formed with a first race surface thereon, a second race ring having a surface formed with a second race surface thereon, and a plurality of balls provided so as to be freely rotatable between the first race surface and the second race surface, the ball bearing being used under conditions wherein a product d.sub.m .multidot.N of a pitch circle diameter d.sub.m mm of the plurality of balls, and a rotational speed N rpm of the second race ring relative to the first race ring is greater than 1,000,000 mm.multidot.rpm, characterized in that for each of the plurality of balls, a ratio .DELTA.I/I of a dynamic imbalance amount to a moment of inertia I, is less than (3.1.times.10.sup.7 /(d.sub.m .multidot.N).sup.2)+2.7.times.10.sup.-5.
    • 1.一种球轴承,包括: 具有形成有第一座圈表面的表面的第一座圈,具有在其上形成有第二座圈表面的表面的第二座圈,以及设置成能够在第一座圈表面和第二座圈之间自由旋转的多个球 滚珠轴承在多个滚珠的节圆直径dm mm的乘积dmxN和第二座圈相对于第一座圈的转速N rpm大于1,000,000mm×rpm的条件下使用时, 其特征在于,对于多个球中的每一个,动态不平衡量与转动惯量I的比DELTA I / I小于(3.1×10 7 /(dm×N)2))+ 2.7×10 -5。
    • 5. 发明授权
    • Rolling bearing
    • 滚动轴承
    • US06676297B1
    • 2004-01-13
    • US09674850
    • 2001-02-22
    • Takayuki MiyagawaBanda NodaYasuyuki MutoTatsunobu Momono
    • Takayuki MiyagawaBanda NodaYasuyuki MutoTatsunobu Momono
    • F16C1906
    • F16C19/527F16C19/06F16C27/066F16C2326/06
    • The frequencies generated based on the undulations existing on the inner and outer ring raceways 8, 10 and on the rolling surface of the balls 11, 11 are out of coincidence with the rotational frequency itself of the rotation member supported by the rolling bearing, and with a frequency component which is a multiple of the rotational frequency, or kinds of frequencies generated due to the undulations are out of coincidence with each other in the natural frequency domain of a rotation system which is a rotation supporting portion having the rolling bearing incorporated therein, whereby without using a special grease, the self-excited frequency of the rolling bodies hardly grows to abnormal vibration, and a rolling bearing having sufficient durability and causing no abnormal vibration and noise even if used at low temperature is realized.
    • 基于存在于内圈和外圈滚道8,10以及滚珠11,11的滚动面上的波动产生的频率与由滚动轴承支撑的旋转构件的旋转频率本身不一致,并且与 作为旋转频率的倍数的频率分量或由于波动产生的频率的种类在旋转系统的固有频率域彼此不一致,旋转系统是具有并入其中的滚动轴承的旋转支撑部分, 由此,不使用特殊的润滑脂,轧制体的自激频率几乎不会变得异常振动,并且即使在低温下使用也能够实现具有足够的耐久性,不产生异常振动和噪声的滚动轴承。
    • 7. 发明授权
    • Rolling bearing unit
    • 滚动轴承单元
    • US5782563A
    • 1998-07-21
    • US915380
    • 1997-08-20
    • Yasushi MutoBanda NodaTatsunobu Momono
    • Yasushi MutoBanda NodaTatsunobu Momono
    • F16C19/00F16C33/30F16C33/58G11B19/20F16C33/32
    • G11B19/2009F16C33/32F16C33/585F16C19/06F16C2370/12
    • A rolling bearing unit having undulation on the rolling surfaces of the rolling elements where the total value of the wave components having an even number of waves per circumference is smaller than the total value of the wave components having an odd number of waves per circumference, or having undulation on the inner ring raceway and outer ring raceway, where the undulation on at least one of the raceway is conditioned such that the maximum waviness amplitude among (nZ), (nZ+1) and (nZ -1) waves per circumference is smaller than the maximum waviness amplitude among (nZ+2) and more waves per circumference, where n is a positive integer and Z is the number of rolling elements, thereby making it possible to obtain a low-cost, high-performance rolling bearing in which the vibration characteristics of the rolling bearing are improved without having to increase the precision required for manufacturing the rolling elements and inner ring raceway and outer ring raceways.
    • 滚动轴承单元在滚动体的滚动面上具有波动,其中每圆周具有偶数个波数的波分量的总和小于每圆周奇数波数的波分量的总值,或 在内圈滚道和外圈滚道上具有波动,其中至少一个滚道上的起伏被调节,使得(nZ),(nZ + 1)和(nZ -1)波每圆周上的最大波动幅度为 小于(nZ + 2)的最大波动幅度和每周更多的波,其中n是正整数,Z是滚动元件的数量,从而可以获得低成本,高性能的滚动轴承 提高了滚动轴承的振动特性,而不必增加制造滚动体和内圈滚道和外圈滚道所需的精度。