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公开(公告)号:US20050069239A1
公开(公告)日:2005-03-31
申请号:US10952714
申请日:2004-09-28
申请人: Naota Yamamoto , Mamoru Mizutani
发明人: Naota Yamamoto , Mamoru Mizutani
CPC分类号: F16C33/467 , F16C19/28 , F16C33/485 , F16C33/498 , F16C33/6611 , F16C33/6614
摘要: A cage of a cylindrical roller bearing includes an annular section, a plurality of pillars that extend axially in an integrated, continuous manner from the inside surface of the annular section, and a plurality of pockets, which are formed between the inner circumferential direction side faces of adjacent pillars, and hold the cylindrical rollers in a freely rotatable manner. The circumferential direction side faces of the pillars incorporate a circular arc surface formed in both the inside and outside diameter directions from the pocket PCD which passes through the pocket center of the pocket, and a roll-off section (lubricant reservoir) provided at the tip end inner circumferential section.
摘要翻译: 圆柱滚子轴承的保持架包括环形部分,从环形部分的内表面以一体连续的方式轴向延伸的多个支柱以及形成在内圆周方向侧面之间的多个凹部 并且以可自由旋转的方式保持圆柱滚子。 柱的圆周方向的侧面包括从穿过口袋的凹穴中心的口袋PCD的内径和外径方向形成的圆弧面,以及设置在尖端处的滚降部(润滑剂储存器) 端部内圆周截面。
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公开(公告)号:US06485581B2
公开(公告)日:2002-11-26
申请号:US09969880
申请日:2001-10-04
申请人: Hiroshi Tako , Mamoru Mizutani
发明人: Hiroshi Tako , Mamoru Mizutani
IPC分类号: C23C826
CPC分类号: C23C8/32 , C22C38/40 , F16C33/62 , F16C33/64 , Y10T409/309352
摘要: A bearing for use in the main spindle of a machine tool is provide, in which at least the raceway of the bearing contains by mass, C: 0.6-1.3%, Si: 0.3—3.0%, Mn: 0.2-.5%, P: 0.03% or less, S: 0.03% or less, Cr: 0.3-5.0%, Ni: 0.1-3.0%, Al: 0.050% or less, Ti: 0.003% or less, O: 0.0015% or less, N: 0.015% or less; and the rest is composed of Fe and unavoidable impurities. The raceway is tempered after either quenching or carbonitriding and its surface hardness presents at least HRC 58 after tempering.
摘要翻译: 提供一种用于机床的主轴的轴承,其中至少轴承的滚道含有C:0.6-1.3%,Si:0.3-3.0%,Mn:0.2-5.5% P:0.03%以下,S:0.03%以下,Cr:0.3〜5.0%,Ni:0.1-3.0%,Al:0.050%以下,Ti:0.003%以下,O:0.0015%以下,N :0.015%以下; 其余由Fe和不可避免的杂质组成。 在淬火或碳氮共渗后,回转钢轨,回火后其表面硬度至少为HRC 58。
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公开(公告)号:US20060291759A1
公开(公告)日:2006-12-28
申请号:US10394420
申请日:2003-03-13
IPC分类号: F16C19/00
CPC分类号: F16C33/467 , F16C19/225 , F16C19/26 , F16C33/34 , F16C33/4635 , F16C33/585 , F16C2240/40 , F16C2240/42 , F16C2240/70 , F16C2322/39 , Y10T409/309352
摘要: Contact surface pressure P increases rather drastically in proportion to skew angle θ within the range of 0
摘要翻译: 接触表面压力P在0°至0°的范围内与偏斜角θ成比例地增加,但是由于临界倾斜角θ被限制为小,接触表面压力P 在低于在接触部分发生磨损的某一水平P
的低范围内的变化。 因此,将临界倾斜角θT限制在小的角度,减小了接触表面压力P并抑制了接触部分中的发热和磨损。 -
公开(公告)号:US5852947A
公开(公告)日:1998-12-29
申请号:US804040
申请日:1997-02-24
申请人: Takashi Tsujimoto , Mamoru Mizutani
发明人: Takashi Tsujimoto , Mamoru Mizutani
IPC分类号: F16H3/08 , F16C19/38 , F16C19/56 , F16C33/46 , F16C33/54 , F16H57/021 , F16D23/06 , F16C33/36
CPC分类号: F16C19/52 , F16C19/386 , F16C19/505 , F16C33/543 , F16H57/021 , F16C2240/30 , F16C2240/40 , F16C2361/43 , F16C2361/61 , Y10T74/19284
摘要: A bearing unit A comprises a main shaft gear 1 integrally having a tooth section 1a always meshed with a sub shaft gear 6 at the outer circumference, a pair of inner rings 2 fitted in the outer circumference of the main shaft 5, double-row tapered rollers 3 disposed between the raceway surface of the main shaft gear 1 and that of the inner ring 2, and a pair of cages 4 for respectively retaining each row of tapered rollers 3. The pockets 4a of the cage 4 are unequally pitched, wherein the tapered rollers 3 housed in the pockets 4a are unequally disposed at the circumference.
摘要翻译: 轴承单元A包括主轴齿轮1,该主轴齿轮1整体地具有总体上与副轴齿轮6啮合的齿部1a,在主轴5的外周配合的一对内圈2,双列锥形 设置在主轴齿轮1的滚道表面和内圈2的滚道表面之间的滚子3和用于分别保持每排圆锥滚子3的一对保持架4.保持架4的凹部4a不均匀地倾斜,其中, 容纳在袋4a中的圆锥滚子3在圆周处不均匀地设置。
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公开(公告)号:US5324868A
公开(公告)日:1994-06-28
申请号:US66180
申请日:1993-05-24
申请人: Masashi Inaba , Norioki Mine , Mamoru Mizutani
发明人: Masashi Inaba , Norioki Mine , Mamoru Mizutani
CPC分类号: C07C37/50
摘要: 4,4'-Biphenol is prepared through debutylation of 3,3', 5,5'-tetra-tert-butyl-4,4'-biphenol in an organic solvent in the presence of an acid catalyst wherein the debutylation is carried out continuously using at least two reactors aligned in series, with a high yield and high purity on an industrial level.
摘要翻译: 在酸催化剂存在下,在有机溶剂中,通过3,3',5,5'-四叔丁基-4,4'-联苯酚的丁基化制备4,4'-联苯酚,其中进行脱丁基化 连续使用串联排列的至少两个反应器,在工业上具有高产率和高纯度。
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