JP2006070909A - Ball bearing - Google Patents

Ball bearing Download PDF

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Publication number
JP2006070909A
JP2006070909A JP2004251353A JP2004251353A JP2006070909A JP 2006070909 A JP2006070909 A JP 2006070909A JP 2004251353 A JP2004251353 A JP 2004251353A JP 2004251353 A JP2004251353 A JP 2004251353A JP 2006070909 A JP2006070909 A JP 2006070909A
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Japan
Prior art keywords
bearing
ball bearing
balls
pockets
ball
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JP2004251353A
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Japanese (ja)
Inventor
Yozo Taniguchi
陽三 谷口
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JTEKT Corp
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JTEKT Corp
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Priority to JP2004251353A priority Critical patent/JP2006070909A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49—Bearings with both balls and rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/50—Other types of ball or roller bearings
    • F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/545—Systems comprising at least one rolling bearing for radial load in combination with at least one rolling bearing for axial load

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ball bearing capable of reducing a torque by replacing it with a needle bearing used in a radial/thrust roller bearing. <P>SOLUTION: This ball bearing 1 comprises races 2 and 3 facing each other in the axial direction, a plurality of balls 4 and 5 disposed between both races 2 and 3, and a retainer 6 holding the balls 4 and 5. Pockets 7 having a first P.C.D and pockets 8 having a second P.C.D different from the first P.C.D are alternately formed in the retainer 6 in the circumferential direction. The balls 4 and 5 are disposed in the pockets 7 and 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、玉軸受に関し、さらに詳しくは、ラジアル荷重を受けるころ軸受と組み合わされてラジアル・スラスト軸受を構成するのに適した玉軸受に関する。   The present invention relates to a ball bearing, and more particularly, to a ball bearing suitable for constituting a radial thrust bearing in combination with a roller bearing that receives a radial load.

自動車の変速機用の軸受装置としては、図３に示すように、ハウジング(21)に固定される外輪(32)、ギア(22a)を有するシャフト(22)に固定される内輪(33)、および両輪(32)(33)間に配置された複数のころ(34)を備えている円筒ころ軸受(31)と、内輪(33)に一体に設けられたスラストレース(33a)と外輪(32)との間に配置されたニードルころ(35)と、ニードルころ(35)を保持する保持器(36)とからなるラジアル・スラストころ軸受が知られている（特許文献１）。
特開２００２−１８８６４７号公報 As shown in FIG. 3, the bearing device for a transmission of an automobile includes an outer ring (32) fixed to a housing (21), an inner ring (33) fixed to a shaft (22) having a gear (22a), And a cylindrical roller bearing (31) having a plurality of rollers (34) disposed between both wheels (32) and (33), and a thrust race (33a) and an outer ring (32) provided integrally with the inner ring (33). There is known a radial thrust roller bearing comprising a needle roller (35) disposed between the roller and a cage (36) for holding the needle roller (35) (Patent Document 1).
JP 2002-188647 A

自動車の変速機では、トルク低下の要望があり、上記特許文献１のラジアル・スラストころ軸受のトルクの低減が課題となっている。   In the transmission of an automobile, there is a demand for torque reduction, and reduction of the torque of the radial / thrust roller bearing of Patent Document 1 has been a problem.

この発明の目的は、ラジアル・スラストころ軸受で使用されているニードルころに置き換え可能であり、これにより、トルクを低減することが可能な玉軸受を提供することにある。   An object of the present invention is to provide a ball bearing that can be replaced with a needle roller used in a radial thrust roller bearing, thereby reducing torque.

この発明による玉軸受は、軸方向に対向する２つの軌道輪、両軌道輪間に配置された複数の玉、および複数の玉を保持する環状の保持器を備えている玉軸受において、第１のＰ．Ｃ．Ｄ．を有するポケットおよびこれとは異なる第２のＰ．Ｃ．Ｄ．を有するポケットが保持器に周方向に交互に設けられており、各ポケットに玉が配置されていることを特徴とするものである。   A ball bearing according to the present invention is a ball bearing including two bearing rings facing in the axial direction, a plurality of balls arranged between the two bearing rings, and an annular cage that holds the plurality of balls. P. C. D. And a different second P.P. C. D. Pockets having s are alternately provided in the circumferential direction in the cage, and balls are arranged in each pocket.

第１のＰ．Ｃ．Ｄ．を有するポケットおよびこれとは異なる第２のＰ．Ｃ．Ｄ．を有するポケットが保持器に設けられる場合、通常、各ポケットが径方向に並ぶように設けられ、第１および第２のＰ．Ｃ．Ｄ．の差＝玉径＋玉間隔とされるところ、この発明では、ポケットが周方向に交互に設けられることにより、必要な玉間隔を保持した上で、第１および第２のＰ．Ｃ．Ｄ．の差をほぼ玉径に等しくすることができ、２列の玉軸受でありながら、その径方向寸法を小さいものとすることができる。   The first P.P. C. D. And a different second P.P. C. D. Are provided in the cage, the pockets are usually provided so as to be aligned in the radial direction, and the first and second P.P. C. D. In the present invention, the pockets are alternately provided in the circumferential direction, so that the first and second P.P. C. D. The difference in diameter can be made substantially equal to the ball diameter, and the radial dimension can be made small while the ball bearings are in two rows.

この玉軸受は、外輪、内輪、および両輪間に配置された複数のころを備えたラジアル荷重を受けるころ軸受と組み合わされてラジアル・スラスト軸受を構成することがあり、この場合、いずれか一方の軌道輪がころ軸受の外輪の端面に当接させられる。このようにすると、スラストがニードルころで受けられていた従来のラジアル・スラスト軸受に代えて、スラストが玉で受けられるラジアル・スラスト軸受とすることができ、トルクの低減が可能となる。   This ball bearing may be combined with a roller bearing that receives a radial load including a plurality of rollers disposed between the outer ring, the inner ring, and both rings to form a radial thrust bearing. The race is brought into contact with the end face of the outer ring of the roller bearing. If it does in this way, it can replace with the conventional radial thrust bearing with which the thrust was received with the needle roller, and it can be set as the radial thrust bearing with which a thrust is received with a ball, and it becomes possible to reduce torque.

この発明の玉軸受によると、転動体がニードルころの軸受に比べて、転動体が玉であることによりトルクが低減し、また、玉が２列に配置されていることにより、同等以上の負荷容量を有し、しかも、２列の玉を収納するポケットが周方向に交互に設けられていることにより、径方向の寸法を同程度にすることができる。したがって、ラジアル・スラストころ軸受で使用されているニードルころに置き換え可能であり、これにより、トルクを低減することができる。   According to the ball bearing of the present invention, the torque is reduced because the rolling element is a ball compared to the needle roller bearing, and the load is equal to or greater than that because the balls are arranged in two rows. Since the pockets having the capacity and storing the two rows of balls are alternately provided in the circumferential direction, the dimensions in the radial direction can be made comparable. Therefore, it can be replaced with a needle roller used in a radial / thrust roller bearing, whereby the torque can be reduced.

この発明の実施の形態を、以下図面を参照して説明する。以下の説明において、左右は図１の左右をいうものとする。   Embodiments of the present invention will be described below with reference to the drawings. In the following description, the left and right refer to the left and right in FIG.

図１は、この発明の玉軸受をラジアル・スラスト軸受に適用した実施形態を示している。玉軸受(1)は、スラスト荷重を受けるもので、左の軌道輪（第１軌道輪）(2)、第１軌道輪(2)に軸方向に対向する右の軌道輪（第２軌道輪）(3)、両軌道輪(2)(3)間に２列に配置された玉(4)(5)、および玉(4)(5)を保持する環状の保持器(6)を備えている。   FIG. 1 shows an embodiment in which the ball bearing of the present invention is applied to a radial thrust bearing. The ball bearing (1) receives thrust load, and the right bearing ring (second bearing ring) facing the left bearing ring (first bearing ring) (2) and the first bearing ring (2) in the axial direction. ) (3), balls (4) (5) arranged in two rows between both race rings (2) (3), and an annular cage (6) that holds the balls (4) (5) ing.

玉(4)(5)は、径方向内側にあってＰ．Ｃ．Ｄ．が小さいもの(4)と径方向外側にあってＰ．Ｃ．Ｄ．が大きいもの(5)との２列配置とされており、保持器(6)には、図２に示すように、相対的に小さい第１のＰ．Ｃ．Ｄ．を有するポケット(7)および相対的に大きい第２のＰ．Ｃ．Ｄ．を有するポケット(8)が周方向に交互に設けられており、これらのすべてのポケット(7)(8)に玉(4)(5)が配置されている。第１および第２のＰ．Ｃ．Ｄ．の差は、ほぼ玉径に等しくされている。   Balls (4) and (5) C. D. With a small diameter (4) and P. C. D. Is arranged in two rows with a large one (5), and the cage (6) has a relatively small first P.A. as shown in FIG. C. D. And a relatively large second P.I. C. D. Pockets (8) having s are alternately provided in the circumferential direction, and balls (4) and (5) are arranged in all these pockets (7) and (8). The first and second P.P. C. D. The difference between them is almost equal to the ball diameter.

この玉軸受(1)は、図１に示すように、ラジアル荷重を受ける円筒ころ軸受(11)と組み合わされてラジアル・スラスト軸受を構成するのに適しており、この場合の円筒ころ軸受(11)は、ハウジング(21)に固定される外輪(12)、変速機のシャフト(22)に固定される内輪(13)、および両輪(12)(13)間に配置された複数の円筒ころ(14)を備えているものとされる。そして、玉軸受(1)は、その第１軌道輪(2)を円筒ころ軸受(11)の外輪(12)の右端面に当接させて、円筒ころ軸受(11)の外輪(12)とシャフト(22)のギア部(22a)との間に介在させられ、これにより、円筒ころ軸受(11)とシャフト(22)との間のスラストが玉軸受(1)によって受けられている。   As shown in FIG. 1, this ball bearing (1) is suitable for constituting a radial thrust bearing in combination with a cylindrical roller bearing (11) that receives a radial load. In this case, the cylindrical roller bearing (11 ) Is an outer ring (12) fixed to the housing (21), an inner ring (13) fixed to the shaft (22) of the transmission, and a plurality of cylindrical rollers (between the wheels (12) and (13)) ( 14). The ball bearing (1) has its first race ring (2) brought into contact with the right end surface of the outer ring (12) of the cylindrical roller bearing (11), and the outer ring (12) of the cylindrical roller bearing (11). It is interposed between the gear portion (22a) of the shaft (22), whereby the thrust between the cylindrical roller bearing (11) and the shaft (22) is received by the ball bearing (1).

円筒ころ軸受(11)の外輪(12)の左右端には、円筒ころ(14)を保持する左右つば部(12a)(12b)が設けられている。玉軸受(1)の外径は、円筒ころ軸受(11)の外径にほぼ等しくされ、その内径は、右つば部(12b)の内径にほぼ等しくされている。上記玉軸受(1)によると、Ｐ．Ｃ．Ｄ．が異なるポケット(7)(8)が周方向に交互に設けられていることにより、ポケット(7)(8)同士の間隔が十分確保された上で、保持器(6)の径方向の寸法を小さく抑えることが可能であり、こうして、円筒ころ軸受(11)の寸法に応じた玉軸受(1)とされ、変速機用のラジアル・スラスト軸受としての使用に有利なものとなっている。   Left and right collar portions (12a) and (12b) for holding the cylindrical rollers (14) are provided at the left and right ends of the outer ring (12) of the cylindrical roller bearing (11). The outer diameter of the ball bearing (1) is substantially equal to the outer diameter of the cylindrical roller bearing (11), and the inner diameter thereof is substantially equal to the inner diameter of the right collar portion (12b). According to the ball bearing (1), P.I. C. D. The pockets (7) and (8) with different diameters are alternately provided in the circumferential direction, so that sufficient spacing between the pockets (7) and (8) is secured, and the radial dimension of the cage (6). Thus, the ball bearing (1) according to the dimensions of the cylindrical roller bearing (11) is obtained, which is advantageous for use as a radial thrust bearing for a transmission.

なお、上記玉軸受(1)は、変速機用に限られるものではなく、円筒ころ軸受(11)と組み合わされて、種々の装置においてそのラジアル荷重およびスラスト荷重を受けることができ、また、スラスト軸受として単独で使用こともできる。   The ball bearing (1) is not limited to a transmission, and can be combined with the cylindrical roller bearing (11) to receive the radial load and thrust load in various devices. It can also be used alone as a bearing.

図１は、この発明による玉軸受の１実施形態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of a ball bearing according to the present invention. 図２は、この発明による玉軸受の保持器の一部を拡大して示す軸方向から見た図である。FIG. 2 is an enlarged view of a part of the cage of the ball bearing according to the present invention as seen from the axial direction. 図３は、従来のラジアル・スラスト軸受を示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a conventional radial thrust bearing.

符号の説明Explanation of symbols

(1) 玉軸受
(2) 外輪
(3) 内輪
(4)(5) 玉
(6) 保持器
(7)(8) ポケット
(11) 円筒ころ軸受
(12) 外輪
(13) 内輪
(14) 円筒ころ (1) Ball bearing
(2) Outer ring
(3) Inner ring
(4) (5) Ball
(6) Cage
(7) (8) Pocket
(11) Cylindrical roller bearing
(12) Outer ring
(13) Inner ring
(14) Cylindrical roller

Claims (2)

軸方向に対向する２つの軌道輪、両軌道輪間に配置された複数の玉、および複数の玉を保持する環状の保持器を備えている玉軸受において、第１のＰ．Ｃ．Ｄ．を有するポケットおよびこれとは異なる第２のＰ．Ｃ．Ｄ．を有するポケットが保持器に周方向に交互に設けられており、各ポケットに玉が配置されていることを特徴とする玉軸受。   A ball bearing including two bearing rings facing each other in the axial direction, a plurality of balls disposed between the two bearing rings, and an annular cage for holding the plurality of balls. C. D. And a different second P.P. C. D. The ball bearing is characterized in that pockets having a plurality of holes are alternately provided in the circumferential direction in the cage, and balls are arranged in the respective pockets. 外輪、内輪、および両輪間に配置された複数のころを備えたラジアル荷重を受けるころ軸受と組み合わされてラジアル・スラスト軸受を構成しており、いずれか一方の軌道輪がころ軸受の外輪の端面に当接させられている請求項１の玉軸受。   A radial thrust bearing is configured in combination with a roller bearing that receives a radial load and includes a plurality of rollers disposed between the outer ring, the inner ring, and the two rings, and one of the race rings is an end face of the outer ring of the roller bearing. The ball bearing according to claim 1, which is abutted against the ball bearing.
JP2004251353A 2004-08-31 2004-08-31 Ball bearing Withdrawn JP2006070909A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1852618A2 (en) * 2006-05-04 2007-11-07 IMO Momentenlager GmbH Rolling bearing device
CN102052399A (en) * 2010-12-22 2011-05-11 中国石油天然气集团公司 Roller bearing used on injection head
CN107165946A (en) * 2017-06-21 2017-09-15 张多艳 A kind of axial carrying seat
CN109026987A (en) * 2018-09-30 2018-12-18 如皋市非标轴承有限公司 A kind of bearing being easily installed
FR3068406A1 (en) * 2017-06-28 2019-01-04 Valeo Embrayages BEARINGS AND CLUTCH MODULE FOR MOTOR VEHICLE
WO2019189116A1 (en) * 2018-03-29 2019-10-03 Ntn株式会社 Composite bearing
WO2020166687A1 (en) * 2019-02-14 2020-08-20 日本精工株式会社 Multi-row thrust ball bearing
CN112096833A (en) * 2020-09-03 2020-12-18 盛瑞传动股份有限公司 Connecting structure of gearbox shell and output shaft and assembling method thereof
CN114215844A (en) * 2021-12-22 2022-03-22 姜虹 Plane dense ball bearing, manufacturing method thereof and nutation reducer
US20240026923A1 (en) * 2022-07-21 2024-01-25 Schaeffler Technologies AG & Co. KG Bearing module for coaxial shaft ends

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1852618A2 (en) * 2006-05-04 2007-11-07 IMO Momentenlager GmbH Rolling bearing device
EP1852618A3 (en) * 2006-05-04 2012-06-06 IMO Momentenlager GmbH Rolling bearing device
CN102052399A (en) * 2010-12-22 2011-05-11 中国石油天然气集团公司 Roller bearing used on injection head
CN107165946A (en) * 2017-06-21 2017-09-15 张多艳 A kind of axial carrying seat
FR3068406A1 (en) * 2017-06-28 2019-01-04 Valeo Embrayages BEARINGS AND CLUTCH MODULE FOR MOTOR VEHICLE
WO2019189116A1 (en) * 2018-03-29 2019-10-03 Ntn株式会社 Composite bearing
CN109026987A (en) * 2018-09-30 2018-12-18 如皋市非标轴承有限公司 A kind of bearing being easily installed
JP2020133683A (en) * 2019-02-14 2020-08-31 日本精工株式会社 Double row thrust ball bearing
WO2020166687A1 (en) * 2019-02-14 2020-08-20 日本精工株式会社 Multi-row thrust ball bearing
CN113692495A (en) * 2019-02-14 2021-11-23 日本精工株式会社 Multi-row thrust ball bearing
CN112096833A (en) * 2020-09-03 2020-12-18 盛瑞传动股份有限公司 Connecting structure of gearbox shell and output shaft and assembling method thereof
CN112096833B (en) * 2020-09-03 2021-12-07 盛瑞传动股份有限公司 Connecting structure of gearbox shell and output shaft and assembling method thereof
CN114215844A (en) * 2021-12-22 2022-03-22 姜虹 Plane dense ball bearing, manufacturing method thereof and nutation reducer
CN114215844B (en) * 2021-12-22 2022-11-25 姜虹 Plane dense ball bearing, manufacturing method thereof and nutation reducer
WO2023116253A1 (en) * 2021-12-22 2023-06-29 姜虹 Planar dense ball bearing and preparation method therefor, and nutation speed reducer
US11873862B2 (en) 2021-12-22 2024-01-16 Hong Jiang Planar high-density ball bearing, manufacturing method thereof and nutation reducer
US20240026923A1 (en) * 2022-07-21 2024-01-25 Schaeffler Technologies AG & Co. KG Bearing module for coaxial shaft ends
US11965546B2 (en) * 2022-07-21 2024-04-23 Schaeffler Technologies AG & Co. KG Bearing module for coaxial shaft ends

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