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1. 发明专利

JPH0719239A DOUBLE ROW BALL BEARING 失效
公开(公告)号：JPH0719239A
公开(公告)日：1995-01-20
申请号：JP15884193
申请日：1993-06-29
申请人： KOYO SEIKO CO
发明人： KAWAKAMI TOSHIKAZU
IPC分类号： F16C19/08 , F16C19/20 , F16C33/40 , F16H1/32
摘要： PURPOSE:To make the number of service pieces of rolling elements in each row be equal in case of a single row ball bearing as well as to secure such a constitution as capable of reducing the cost of manufacturing. CONSTITUTION:A double row ball bearing 1 is provided with two sets of inner and outer rings 2, 3 and 4, 5 to be installed adjacently in the axial direction, plural groups of rolling elements 6 to ne interposed between two sets of these inner and outer rings, and a single cage 7 holding these two-row groups of rolling elects 6 at the same time. In brief, these inner and outer rings usable in common with the single ball bearing are formed into two sets, whereby even if a cage for two rows is used, assemble in a state that the number of service pieces of rolling elements at each row is made to be equal to the single ball bearing is made achievable and, what is more, the whole body consisting of separate parts is formed inseparable.

2. 发明专利

JP2003336631A Self-aligning bearing 审中-公开
标题翻译：自调心轴承
公开(公告)号：JP2003336631A
公开(公告)日：2003-11-28
申请号：JP2002147660
申请日：2002-05-22
申请人： Koyo Seiko Co Ltd , Mentec Kiko Kk , メンテック機工株式会社 , 光洋精工株式会社
发明人： MASUI TAKASHI , NUMATA YOICHI , KAWAKAMI TOSHIKAZU , MIYOSHI KEIICHI
IPC分类号： F16C13/06 , F16C19/28 , F16C19/48 , F16C23/08 , F16C33/58 , F16C33/60
CPC分类号： F16C33/605 , F16C19/28 , F16C19/48 , F16C23/084 , F16C33/58
摘要： PROBLEM TO BE SOLVED: To enhance a rated load and prolong a life without making a dimension of outer shape large in a self-aligning bearing in which one end of a rotation shaft thermally expanding/shrinking in an axial direction is positioned in the axial direction. SOLUTION: The self-aligning bearing 4 positions/supports one end of the rotation shaft in the axial direction and permits flexure of the rotation shaft. The self-aligning bearing 4 is made to a constitution of a double row cylindrical roller bearing with an aligning ring. A group of cylindrical roller 13 of the first row are clamped and positioned by a radially inward flange 15 provided on an axial midway of an outer ring 11 of which an outer peripheral surface is made to a spherical shape and a flange 16A provided on one outer end of two inner rings 12A, 12B in the axial direction. A group of cylindrical roller 13 of the second row are clamped and positioned by the flange 15 of the outer ring 11 and a flange 16B provided on the other outer end of the two inner rings 12A, 12B in the axial direction. Thereby, a total effective contact length of the double row cylindrical rollers 13 and an inner diameter dimension of the outer ring 11 can be made as large as possible without making a width dimension and an outer diameter dimension of the outer ring 11 in the axial direction large. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提高额定负载并延长使用寿命，而不会使轴向上热膨胀/收缩的旋转轴的一端位于自对准轴承中的外形尺寸较大轴向。
解决方案：自调心轴承4在轴向方向上定位/支撑旋转轴的一端，并允许旋转轴弯曲。自对准轴承4由具有对准环的双列圆柱滚子轴承构成。第一排的一组圆柱滚子13通过设置在外圈11的轴向中间的径向向内的凸缘15夹紧并定位，外圈11的外周表面形成为球形，凸缘16A设置在一个外部两个内圈12A，12B的轴向的端部。第二排的一组圆柱滚子13由外圈11的凸缘15和设置在两个内圈12A，12B的另一个外端上的轴向方向夹紧并定位。由此，可以使双列圆筒滚子13的总有效接触长度和外圈11的内径尺寸尽可能大，而不使外圈11的轴向尺寸和外径尺寸大。版权所有（C）2004，JPO

3. 发明专利

JPH07332374A GREASE-SEALED ROLLER BEARING AND SPINDLE SUPPORTING DEVICE USING THE SAME 失效
公开(公告)号：JPH07332374A
公开(公告)日：1995-12-22
申请号：JP11925994
申请日：1994-05-31
申请人： KOYO SEIKO CO
发明人： KAWAKAMI TOSHIKAZU
IPC分类号： F16C19/06 , D01H7/12 , F16C33/66
摘要： PURPOSE:To prevent the deterioration of the durability caused by the initial lubrication disorder and improve the durability, by arranging a sealing device between both the orbital races, and attaching the low volatile lubricating oil for the initial lubrication at least on the surface of a ball, concerning the construction in which a sealing device is arranged between both the orbital surfaces, and grease is introduced from the pocket opening side of a crown-shaped retainer. CONSTITUTION:A spindle 1 which is constituted so that a bobbin for winding a yarn is installed in an integrally rotatable manner in the uppermost part is supported in free revolution by a ball bearing 5A (5B) in a supporting device for a covering twisted yarn spindle. The ball bearing 5A consists of the outer and inner races 51 and 52 having the respective orbital surfaces 511 and 521, a plurality of balls 53 held by a retainer 54 between both the orbital surfaces 511 and 521, and a pair of sealing members 55 for sealing the end parts between both the races 51 and 52, and constituted to a grease-sealed type in which grease is sealed inside. In this case, at least on the surface of the ball 53, the low volatile lube oil for the initial lubrication is attached, and the initial lubrication disorder is prevented, and the ball 53 is made of ceramics.

4. 发明专利

JPH02146311A HEAT RESISTING DEEP GROOVE BALL BEARING 失效
公开(公告)号：JPH02146311A
公开(公告)日：1990-06-05
申请号：JP929489
申请日：1989-01-17
申请人： KOYO SEIKO CO
发明人： KAWAKAMI TOSHIKAZU , OMORI YOSHIYUKI
IPC分类号： F16C19/14 , F16C19/20 , F16C33/32 , F16C33/37 , F16C33/60
摘要： PURPOSE:To make the assembling of a ball bearing easy in a ball bearing whose ball is at least made of ceramics by insertedly providing a graphite spacer having dimensions larger than a clearance between the shoulders of both raceway surfaces of inner and outer rings between the balls, and forming one slit on the outer ring. CONSTITUTION:A dimension h1 between expanding parts 6 of a graphite spacer 4 is established to be slightly smaller than a dimension l1 of a clearance between raceway grooves 1a, 2a of inner and outer rings 1, 2 and larger than a dimensions l2 of a clearance between flat shoulders of raceway surfaces, and width on both sides of the expanding parts 6 is established to be slightly smaller than the dimensions l2. In addition to that, recesses 7 are partially formed into a spherical shape. In assembling a ball bearing, a slit 5 formed at one position of the outer ring 2 is widened, and after ceramic balls 3 and spacers 4 are alternately fitted into the widened slit 5, the slit 5 is narrowed to that both the ends of the outer ring 2 may be joined to return the ring 2 to the nearly round outer shape. Thus the spacer 4 does not crack in its assembling, and can be prevented from slipping out of the ball bearing after its assembling.

5. 发明专利

JP2004034087A Roll apparatus of continuous casting machine and cylindrical roller bearing for supporting roll of continuous casting machine 有权
公开(公告)号：JP2004034087A
公开(公告)日：2004-02-05
申请号：JP2002194574
申请日：2002-07-03
申请人： Koyo Seiko Co Ltd , Mentec Kiko Kk , メンテック機工株式会社 , 光洋精工株式会社
发明人： MASUI TAKASHI , NUMATA YOICHI , KAWAKAMI TOSHIKAZU , MIYOSHI KEIICHI
IPC分类号： F16C13/02 , B22D11/128
CPC分类号： B22D11/128
摘要： PROBLEM TO BE SOLVED: To solve such problems that, when a cylindrical roller bearing with an aligning ring is used as a bearing supporting a roll attached to a continuous casting machine, there is a need of using a roller having a small diameter in a limited space, and the P.C.D. (Pitch-Circle-Diameter) of the roller is reduced, and the load capacity of the bearing is reduced as well.
SOLUTION: A roll 3 for forming is divided into three pieces. Thus, when a slab 1 is conveyed to a prescribed place so as to be held by each roll 3 for forming, the amount of deflection caused by loading worked from the slab is reduced, so that there is no need of performing the support of each roll 3 for forming by using a bearing having center-alignability, but it is made possible to deal therewith only by using a common cylindrical roller bearing 16. By the degree that there is no need of using a bearing having center-alignability, the number of cylindrical rollers 19 can be increased, or the diameter of the cylindrical roller 19 can be made large. Thus, load capacity can be increased.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JPH10153217A SYNTHETIC RESIN HOLDER FOR CYLINDRICAL ROLLER BEARING 失效
公开(公告)号：JPH10153217A
公开(公告)日：1998-06-09
申请号：JP31171796
申请日：1996-11-22
申请人： KOYO SEIKO CO
发明人： HARIMA MASAYOSHI , KAWAKAMI TOSHIKAZU , ASHIDA SHIGETAKA
IPC分类号： F16C33/46
摘要： PROBLEM TO BE SOLVED: To reduce roller inclination at the time of assembling into a bearing and reduce temperature rise at the time of operation by forming projections on an inner wall of a circular member in a pocket. SOLUTION: A projection 7 having specified thickness is formed on an inner wall 2a of a circular member 2 of a pocket 4 of a holder 1. The projection 7 may be preferably formed inside the pocket 4 by two across its center axis with equal spacings therefrom in view of stability of the cylindrical rollers. The projections 7 may be on both sides of the inner wall of the pocket 4. An end face of the cylindrical roller fitted into the pocket 4 is slightly inclined and abutted against the projections 7. The inclination of the roller itself is reduced. The roller is not in contact with the side surface of an inner ring, so that it is easily assembled. Lubricant is kept in a recession 6 between the projections 7, and a recession 8 around them. Lubrication shortage is not generated at the time of operation even when a gap between the projections 7 and the cylindrical roller end face is decreased. Temperature rise is suppressed at the time of operation, and performance is improved.

7. 发明专利

JP2001059525A SELF-ALIGNING ROLLER BEARING FOR SWING DRIVE DEVICE 失效
公开(公告)号：JP2001059525A
公开(公告)日：2001-03-06
申请号：JP23231699
申请日：1999-08-19
申请人： KOYO SEIKO CO
发明人： ADACHI TAKEHIRO , KAWAKAMI TOSHIKAZU , HORIUCHI YOSHIAKI , ITO HIROYOSHI
IPC分类号： E02F9/12 , F16C23/08 , F16C33/66 , F16C33/76 , F16C33/78 , F16J15/3224 , F16J15/3232 , F16J15/32
摘要： PROBLEM TO BE SOLVED: To provide a self-aligning roller bearing for a swing drive device capable of reducing total cost by reducing the number of part items required to be assembled in the device for lubricating the lower self-aligning roller bearing of the two of upper and lower self-aligning roller bearings for supporting an output shaft of a planet gear speed reduction mechanism in the swing drive device and reducing man-hours for assembly of the device. SOLUTION: An oil seal 6 having aligning property is attached on at least one side and assembled in a planet gear speed reduction mechanism so as to face downward, and a sealing space to seal grease G for lubricating lower self-aligning roller bearing 42 for supporting an output shaft 36 is partitioned by an upper seal 42a and the oil seal 6 integrated with the bearing 42 to dispense with a conventional spacer and a lower seal, they by attaining reduction of the number of part items by unitizing the oil seal 6 against the bearing 42, reduction of man-hours of assembly of the device, and the miniaturization of the device.

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