JP2009236163A - Retainer for ball bearing - Google Patents

Retainer for ball bearing Download PDF

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Publication number
JP2009236163A
JP2009236163A JP2008080603A JP2008080603A JP2009236163A JP 2009236163 A JP2009236163 A JP 2009236163A JP 2008080603 A JP2008080603 A JP 2008080603A JP 2008080603 A JP2008080603 A JP 2008080603A JP 2009236163 A JP2009236163 A JP 2009236163A
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Prior art keywords
lubricating oil
divided
retainer
ball bearing
cage
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JP2008080603A
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Japanese (ja)
Inventor
Katsuhiko Chihara
勝彦 千原
Takeshi Iwawaki
健 岩脇
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JTEKT Corp
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JTEKT Corp
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Priority to JP2008080603A priority Critical patent/JP2009236163A/en
Publication of JP2009236163A publication Critical patent/JP2009236163A/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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
    • F16C33/3862—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages comprising two annular parts joined together
    • F16C33/3875—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages comprising two annular parts joined together made from plastic, e.g. two injection moulded parts joined by a snap fit
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

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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 retainer for a ball bearing of a double clasp type, having a structure with improved holding rigidity for balls, which is hard to be deformed by a centrifugal force during high speed rotation, and to appropriately suppress torque loss by smoothing a flow of lubricating oil for inside of pockets and thus reducing stirring resistance of the lubricating oil. <P>SOLUTION: The retainer is equipped with first and second annular portions 21, 22 and a plurality of columns 26 coupling the first and second annular portions 21, 22 and separating and forming the plurality of pockets 25 for storing the balls 18. The retainer is separately composed of first and second divided bodies 30, 35 which are divided in the axial direction by the plurality of columns 26 and coupled at these column divided portions. A discharge groove 40 of the lubricating oil is provided in a recessed form in a part corresponding to the columns 26 which is at an outer diameter side of the first and second annular portions 21, 22. At the outer diameter part of the column 26, an introducing recessed part 50 for introducing the lubricating oil flowed out from the pocket 25 to the discharge groove 40 is provided in a recessed form. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は玉軸受用保持器に関する。   The present invention relates to a ball bearing retainer.

従来、玉軸受に用いられる保持器において、冠型保持器とも呼ばれている片抱き式の保持器が知られている。
また、保持器において、軸方向両端部に配置された第１、第２の環状体と、これら第１、第２の環状体を連結すると共に玉を収納する複数のポケットを区画形成する複数の柱体とを備え、各柱体において軸方向に分割され、これら各柱分割部で相互に結合される第１、第２の分割体によって分割構成された両抱き式（分割式）の保持器が知られている（例えば特許文献１参照）。
特開２００６−２９２０９７号公報 2. Description of the Related Art Conventionally, as a cage used for a ball bearing, a one-sided type cage called a crown type cage is known.
Further, in the cage, a plurality of first and second annular bodies arranged at both axial ends and a plurality of pockets for connecting the first and second annular bodies and defining a plurality of pockets for storing balls. A double-holding type (divided type) cage that is divided by a first and a second divided body that are divided in the axial direction in each column body and are coupled to each other at each of the column divided portions. Is known (see, for example, Patent Document 1).
JP 2006-292097 A

ところで、片抱き式の保持器は、玉に対する保持剛性が低く高速回転時の遠心力によって変形されやすい構造となり、高速回転用には適応できない場合がある。
すなわち、高速回転時の遠心力によって保持器が変形されると、保持器の変形部の一部が玉と不測に干渉し、回転抵抗を増大させたり、焼き付き等を発生させる懸念がある。
これに対し、両抱き式の保持器は、片抱き式の保持器と比べ、玉に対する保持剛性が高く高速回転時の遠心力によって変形されにくい構造となり、高速回転用に適する。
しかしながら、両抱き式の保持器は、ポケット内に潤滑油が滞留しやすく、保持器による潤滑油の攪拌抵抗が大きくなり、トルク損失をまねく恐れがある。
この発明の目的は、前記問題点に鑑み、保持器を両抱き式として、玉に対する保持剛性を高くし高速回転時の遠心力によって変形されにくい構造とすると共に、ポケット内に対する潤滑油の流れを円滑化し、これによって潤滑油の攪拌抵抗を低減してトルク損失を良好に抑制することができる玉軸受用保持器を提供することである。 By the way, the one-sided holding cage has a structure in which the holding rigidity with respect to the balls is low and is easily deformed by a centrifugal force during high-speed rotation, and may not be applicable for high-speed rotation.
That is, when the cage is deformed by the centrifugal force during high-speed rotation, a part of the deformed portion of the cage may unexpectedly interfere with the balls, increasing the rotational resistance or causing seizure.
On the other hand, the double-holding type cage has a higher holding rigidity with respect to the ball and is less likely to be deformed by centrifugal force during high-speed rotation, and is suitable for high-speed rotation.
However, in the double-cage type cage, the lubricating oil tends to stay in the pocket, and the agitation resistance of the lubricating oil by the cage increases, which may cause torque loss.
In view of the above-mentioned problems, the object of the present invention is to make the cage a double-holding type, increase the holding rigidity of the ball, make it difficult to be deformed by centrifugal force during high-speed rotation, and reduce the flow of lubricating oil into the pocket. An object of the present invention is to provide a ball bearing retainer that can be smoothed and thereby reduce the agitation resistance of the lubricating oil and suppress torque loss satisfactorily.

前記課題を解決するために、この発明の請求項１に係る玉軸受用保持器は、内輪と外輪との間の環状空間に配置され、前記内輪と前記外輪との間に複数の玉を転動可能に保持するための玉軸受用保持器であって、
軸方向両端部に配置された第１、第２の環状体と、これら第１、第２の環状体を連結すると共に、前記玉を収納する複数のポケットを区画形成する複数の柱体とを備え、
前記複数の柱体において軸方向に分割され、これら各柱分割部において結合される第１、第２の両分割体によって分割構成され、
前記第１、第２の環状体の外径側で前記柱体に対応する部分には潤滑油の排出溝が凹設され、
前記柱体の外径側部分には、前記ポケットから流出された潤滑油を前記排出溝に導く誘導凹部が凹設されていることを特徴とする。 In order to solve the above problems, a ball bearing retainer according to claim 1 of the present invention is disposed in an annular space between an inner ring and an outer ring, and a plurality of balls are rotated between the inner ring and the outer ring. A ball bearing retainer for movably holding,
First and second annular bodies arranged at both ends in the axial direction, and a plurality of pillars that connect the first and second annular bodies and that define a plurality of pockets for housing the balls. Prepared,
The plurality of pillars are divided in the axial direction and divided by both the first and second divided parts joined at each of the pillar division parts,
A lubricating oil discharge groove is recessed in a portion corresponding to the column on the outer diameter side of the first and second annular bodies,
In the outer diameter side portion of the column body, a guide recess for guiding the lubricating oil flowing out from the pocket to the discharge groove is provided.

前記構成によると、複数の柱体で軸方向に分割された第１、第２の分割体によって両抱き式の保持器とすることで、片抱き式の保持器と比べ、玉に対する保持剛性を高くすることができ、高速回転用に適する。
また、軸受回転時において、保持器の内径側からポケットに流入した潤滑油は、遠心力の作用によって外径側へ流れて柱体の誘導凹部に流入する。そして、潤滑油は誘導凹部に沿って流れ、第１又は第２の環状体の排出溝より円滑に排出される。
前記したようにして、ポケット内に流入した潤滑油が柱体の誘導凹部を経て第１又は第２の環状体の排出溝より円滑に排出されるため、潤滑油の攪拌抵抗を低減してトルク損失を良好に抑制することができる。 According to the above configuration, the holding rigidity with respect to the ball is higher than that of the single-holding type holder by using the first and second divided bodies divided in the axial direction by a plurality of pillars as a double-holding type holder. Suitable for high-speed rotation.
Further, during the rotation of the bearing, the lubricating oil that has flowed into the pocket from the inner diameter side of the cage flows to the outer diameter side by the action of centrifugal force and flows into the guide recess of the column. Then, the lubricating oil flows along the guide recess and is smoothly discharged from the discharge groove of the first or second annular body.
As described above, since the lubricating oil flowing into the pocket is smoothly discharged from the discharge groove of the first or second annular body through the guide recess of the column body, the stirring resistance of the lubricating oil is reduced and torque is reduced. Loss can be suppressed satisfactorily.

この発明を実施するための最良の形態について実施例にしたがって説明する。   The best mode for carrying out the present invention will be described in accordance with an embodiment.

〔実施例１〕
この発明の実施例１を図１〜図４にしたがって説明する。
図１はこの発明の実施例１に係る玉軸受用保持器を示す斜視図である。図２は玉軸受の内輪と外輪との間に保持器が配設された状態を示す正面図である。図３は図２のＩＩＩ−ＩＩＩ線に基づく縦断面図である。図４は図２のＩＶ−ＩＶ線に基づく縦断面図である。 [Example 1]
A first embodiment of the present invention will be described with reference to FIGS.
1 is a perspective view showing a ball bearing retainer according to Embodiment 1 of the present invention. FIG. 2 is a front view showing a state in which a cage is disposed between the inner ring and the outer ring of the ball bearing. 3 is a longitudinal sectional view based on the line III-III in FIG. 4 is a longitudinal sectional view based on the line IV-IV in FIG.

図２と図３に示すように、この実施例１に係る玉軸受用保持器（以下単に保持器という）２０は、内輪１２の外径面に形成された軌道面１３と、外輪１５の内径面に形成された軌道面１６との間の環状空間に配設されて複数の玉１８を転動可能に保持する。   As shown in FIGS. 2 and 3, a ball bearing cage (hereinafter simply referred to as a cage) 20 according to the first embodiment includes a raceway surface 13 formed on the outer diameter surface of the inner ring 12 and an inner diameter of the outer ring 15. It arrange | positions in the annular space between the track surfaces 16 formed in the surface, and hold | maintains the some ball | bowl 18 so that rolling is possible.

図１に示すように、保持器２０は、軸方向両端部に配置された第１、第２の環状体２１、２２と、これら第１、第２の環状体２１、２２を連結すると共に複数の玉１８を周方向に所定間隔を隔てて転動可能に収納する複数のポケット２５を区画形成するための複数の柱体２６とを備えている。
また、保持器２０は、複数の柱体２６において軸方向に分割され、これら分割部において結合される第１、第２の分割体３０、３５によって分割構成されている。
すなわち、第１、第２の分割体３０、３５の各柱体２６の分割部分には、弾性的に係合する係合部３１、３６が形成され、これら係合部３１、３６の係合力によって第１、第２の分割体３０、３５が一体状に結合されることで保持器２０を構成している（図４参照）。なお、弾性的に係合する係合部３１、３６は、例えば、特許文献１（特開２００６−２９２０９７号公報）に開示された構造ものを採用してもよい。
また、第１、第２の分割体３０、３５は、共に耐摩耗性及び耐熱性を有する合成樹脂材の射出成形によって形成されている。 As shown in FIG. 1, the cage 20 connects the first and second annular bodies 21 and 22 disposed at both ends in the axial direction with the first and second annular bodies 21 and 22 and a plurality of the cages 20. And a plurality of pillars 26 for defining a plurality of pockets 25 for accommodating the balls 18 so as to be rollable at predetermined intervals in the circumferential direction.
The cage 20 is divided into a plurality of pillars 26 in the axial direction, and is constituted by first and second divided bodies 30 and 35 joined at these divided portions.
That is, engaging portions 31 and 36 that are elastically engaged are formed in the divided portions of the column bodies 26 of the first and second divided bodies 30 and 35, and the engaging force of the engaging portions 31 and 36 is formed. Thus, the first and second divided bodies 30 and 35 are joined together to form the cage 20 (see FIG. 4). In addition, as the engaging portions 31 and 36 that are elastically engaged, for example, a structure disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2006-292097) may be employed.
The first and second divided bodies 30 and 35 are both formed by injection molding of a synthetic resin material having wear resistance and heat resistance.

図１〜図３に示すように、保持器２０の第１、第２の環状体２１、２２の外径側で各柱体２６に対応する部分には潤滑油の排出溝４０が凹設されている。
この実施例１において、排出溝４０は、柱体２６の周方向中央部に対応する部分が深く、柱体２６の周方向両側に対応する部分に向かうにしたがって浅くなった凹湾曲状、凹円弧状等に形成されている。
また、図４に示すように、各柱体２６の外径側部分には、ポケット２５から流出された潤滑油を排出溝４０に導く誘導凹部５０が凹設されている。
この実施例１において、誘導凹部５０は、柱体２６の軸方向中央部が深く、両端の第１、第２の環状体２１、２２に向かうにしたがって浅くなった凹湾曲状、凹円弧状等に形成されている。 As shown in FIGS. 1 to 3, a lubricating oil discharge groove 40 is recessed in a portion corresponding to each column 26 on the outer diameter side of the first and second annular bodies 21 and 22 of the cage 20. ing.
In the first embodiment, the discharge groove 40 has a deep concave portion corresponding to the central portion in the circumferential direction of the column body 26 and becomes shallower toward the portions corresponding to both sides in the circumferential direction of the column body 26. It is formed in an arc shape or the like.
Further, as shown in FIG. 4, a guide recess 50 that guides the lubricating oil flowing out from the pocket 25 to the discharge groove 40 is formed in the outer diameter side portion of each column body 26.
In the first embodiment, the guide recess 50 has a concave curved shape, a concave arc shape, or the like in which the central portion in the axial direction of the column body 26 is deep and becomes shallower toward the first and second annular bodies 21 and 22 at both ends. Is formed.

上述したように構成されるこの実施例１に係る玉軸受用保持器において、第１、第２の分割体３０、３５によって分割構成された両抱き式の保持器２０とすることで、片抱き式の保持器と比べ、玉１８に対する保持剛性を高くすることができ、高速回転用に適する。
また、軸受け回転時において、保持器２５の内径側からポケット２５内に流入した潤滑油は遠心力の作用によって外径側へ向けて流れる。
そして、潤滑油は柱体２６の誘導凹部５０に沿って流れた後、第１又は第２の環状体２１、２２の排出溝４０より円滑に排出される。
前記したようにして、ポケット２５内に流入した潤滑油は柱体２６の誘導凹部５０を経て第１又は第２の環状体２１、２２の排出溝４０より円滑に排出されるため、潤滑油の攪拌抵抗を低減してトルク損失を良好に抑制することができる。 In the ball bearing retainer according to the first embodiment configured as described above, the double-holding retainer 20 divided by the first and second divided bodies 30 and 35 is used as the one-holding retainer. Compared to the cage of the type, the holding rigidity with respect to the ball 18 can be increased, which is suitable for high-speed rotation.
Further, during bearing rotation, the lubricating oil that has flowed into the pocket 25 from the inner diameter side of the cage 25 flows toward the outer diameter side due to the action of centrifugal force.
The lubricating oil flows along the guide recess 50 of the column body 26 and then is smoothly discharged from the discharge groove 40 of the first or second annular body 21, 22.
As described above, the lubricating oil flowing into the pocket 25 is smoothly discharged from the discharge groove 40 of the first or second annular body 21, 22 through the guide recess 50 of the column body 26. Stirring resistance can be reduced and torque loss can be satisfactorily suppressed.

〔実施例２〕
この発明の実施例１を図５と図６にしたがって説明する。
図５はこの発明の実施例２に係る玉軸受用保持器を示す斜視図である。図６は玉軸受の内輪と外輪との間に保持器が配設された状態を示す縦断面図である。
図５と図６に示すように、この実施例２においても、実施例１と同様にして、軸方向両端部に配置された第１、第２の環状体１２１、１２２と、これら第１、第２の環状体１２１、１２２を連結すると共に複数の玉１１８を周方向に所定間隔を隔てて転動可能に収納する複数のポケット１２５を区画形成するための複数の柱体１２６とを備えている。
また、保持器１２０を分割構成する第１、第２の分割体１３０、１３５は、その各柱体１２６の分割部分に形成された係合部１３１、１３６の係合力によって一体状に結合される。
また、保持器１２０の第１、第２の環状体１２１、１２２の外径側で各柱体１２６に対応する部分には、実施例１と同様にして潤滑油の排出溝１４０が凹設されている。
特に、この実施例２において、保持器１２０の各柱体１２６の外径側部分は、その軸方向のほぼ全長にわたって第１、第２の環状体１２１、１２２の外径寸法よりも小さく形成され、これによって各柱体１２６の外径側部分に誘導凹部１５０が形成されている。
この実施例２のその他の構成は、実施例１と同様にして構成されるため、同一構成部分に対し同一符号を付記してその説明は省略する。
したがって、この実施例２においても実施例１と同様の作用効果を奏する。 [Example 2]
A first embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is a perspective view showing a ball bearing retainer according to Embodiment 2 of the present invention. FIG. 6 is a longitudinal sectional view showing a state in which a cage is disposed between the inner ring and the outer ring of the ball bearing.
As shown in FIGS. 5 and 6, also in the second embodiment, in the same manner as in the first embodiment, the first and second annular bodies 121 and 122 arranged at both ends in the axial direction, and the first, A plurality of pillars 126 for partitioning and forming a plurality of pockets 125 that connect the second annular bodies 121 and 122 and accommodate a plurality of balls 118 in a circumferential direction so as to be rollable at predetermined intervals. Yes.
Further, the first and second divided bodies 130 and 135 constituting the cage 120 are integrally coupled by the engaging force of the engaging portions 131 and 136 formed in the divided portions of the respective column bodies 126. .
Also, in the portion corresponding to each column body 126 on the outer diameter side of the first and second annular bodies 121 and 122 of the cage 120, a lubricating oil discharge groove 140 is recessed as in the first embodiment. ing.
In particular, in the second embodiment, the outer diameter side portion of each column body 126 of the cage 120 is formed to be smaller than the outer diameter dimensions of the first and second annular bodies 121 and 122 over substantially the entire length in the axial direction. Thus, the guide recess 150 is formed in the outer diameter side portion of each column body 126.
Since other configurations of the second embodiment are configured in the same manner as the first embodiment, the same components are denoted by the same reference numerals, and the description thereof is omitted.
Therefore, this second embodiment also has the same operational effects as the first embodiment.

なお、この発明は前記実施例１及び２に限定するものではなく、この発明の要旨を逸脱しない範囲内において、種々なる形態で実施することもできる。
例えば、保持器２０（１２０）の各柱体２６（１２６）の外径側部分に形成される誘導凹部５０（１５０）の形状は、ポケット２５（１２５）内に流入した潤滑油を第１又は第２の環状体２１、２２（１２１、１２２）の排出溝４０（１４０）に誘導できる形状であればどのような形状であってもよい。
また、排出溝４０（１４０）においても、潤滑油を排出できる形状であればどのような形状であってもよい。 In addition, this invention is not limited to the said Example 1 and 2, In the range which does not deviate from the summary of this invention, it can also be implemented with a various form.
For example, the shape of the guide recess 50 (150) formed in the outer diameter side portion of each pillar body 26 (126) of the cage 20 (120) is the first or the lubricating oil flowing into the pocket 25 (125). Any shape may be used as long as it can be guided to the discharge groove 40 (140) of the second annular bodies 21, 22 (121, 122).
Further, the discharge groove 40 (140) may have any shape as long as the lubricant can be discharged.

この発明の実施例１に係る玉軸受用保持器を示す斜視図である。1 is a perspective view showing a ball bearing cage according to Embodiment 1 of the present invention. FIG. 同じく玉軸受の内輪と外輪との間に保持器が配設された状態を示す正面図である。It is a front view which shows the state by which the retainer was similarly arrange | positioned between the inner ring | wheel and outer ring | wheel of a ball bearing. 同じく図２のＩＩＩ−ＩＩＩ線に基づく縦断面図である。It is a longitudinal cross-sectional view similarly based on the III-III line of FIG. 同じく図２のＩＶ−ＩＶ線に基づく縦断面図である。It is a longitudinal cross-sectional view similarly based on the IV-IV line of FIG. この発明の実施例２に係る玉軸受用保持器を示す斜視図である。It is a perspective view which shows the ball bearing retainer which concerns on Example 2 of this invention. 同じく玉軸受の内輪と外輪との間に保持器が配設された状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state by which the retainer was similarly arrange | positioned between the inner ring | wheel and outer ring | wheel of a ball bearing.

符号の説明Explanation of symbols

１２ 内輪
１５ 外輪
１８ 玉
２０、１２０ 保持器
２１、１２１ 第１の環状体
２２、１２２ 第２の環状体
２５、１２５ ポケット
２６、１２６ 柱体
３０、１３０ 第１の分割体
３５、１３５ 第２の分割体
４０、１４０ 排出溝
５０、１５０ 誘導凹部 12 Inner ring 15 Outer ring 18 Ball 20, 120 Cage 21, 121 First annular body 22, 122 Second annular body 25, 125 Pocket 26, 126 Column body 30, 130 First divided body 35, 135 Second Divided body 40, 140 Discharge groove 50, 150 Guide recess

Claims (1)

内輪と外輪との間の環状空間に配置され、前記内輪と前記外輪との間に複数の玉を転動可能に保持するための玉軸受用保持器であって、
軸方向両端部に配置された第１、第２の環状体と、これら第１、第２の環状体を連結すると共に、前記玉を収納する複数のポケットを区画形成する複数の柱体とを備え、
前記複数の柱体において軸方向に分割され、これら各柱分割部において結合される第１、第２の両分割体によって分割構成され、
前記第１、第２の環状体の外径側で前記柱体に対応する部分には潤滑油の排出溝が凹設され、
前記柱体の外径側部分には、前記ポケットから流出された潤滑油を前記排出溝に導く誘導凹部が凹設されていることを特徴とする玉軸受用保持器。 A ball bearing retainer that is disposed in an annular space between an inner ring and an outer ring, and holds a plurality of balls in a rollable manner between the inner ring and the outer ring,
First and second annular bodies arranged at both ends in the axial direction, and a plurality of pillars that connect the first and second annular bodies and that define a plurality of pockets for housing the balls. Prepared,
The plurality of pillars are divided in the axial direction and divided by both the first and second divided parts joined at each of the pillar division parts,
A lubricating oil discharge groove is recessed in a portion corresponding to the column on the outer diameter side of the first and second annular bodies,
A ball bearing retainer characterized in that a guide recess for guiding the lubricating oil flowing out from the pocket to the discharge groove is formed in an outer diameter side portion of the column body.
JP2008080603A 2008-03-26 2008-03-26 Retainer for ball bearing Pending JP2009236163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008080603A JP2009236163A (en) 2008-03-26 2008-03-26 Retainer for ball bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008080603A JP2009236163A (en) 2008-03-26 2008-03-26 Retainer for ball bearing

Publications (1)

Publication Number Publication Date
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104141690A (en) * 2013-05-08 2014-11-12 襄阳汽车轴承股份有限公司 Ball bearing holder with lubricant holes and fat storage tanks
CN104141694A (en) * 2013-05-08 2014-11-12 襄阳汽车轴承股份有限公司 Deep groove ball bearing with lubrication holes and fat storage tanks in holder ball pockets
DE102013215204A1 (en) * 2013-08-02 2015-02-05 Schaeffler Technologies Gmbh & Co. Kg Split rolling element cage made of plastic
US10451112B2 (en) * 2015-11-25 2019-10-22 Schaeffler Technologies AG & Co. KG Ball bearing cage
CN110686009A (en) * 2019-10-29 2020-01-14 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Improved single-row cylindrical roller bearing
CN114001094A (en) * 2021-11-23 2022-02-01 苏州汇智精保持架科技有限公司 Multifunctional glass fiber injection molding bearing retainer and preparation method thereof
CN117249170A (en) * 2023-09-19 2023-12-19 宜兴华永电机有限公司 Motor bearing unit with oil leakage prevention lubrication sealing structure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104141690A (en) * 2013-05-08 2014-11-12 襄阳汽车轴承股份有限公司 Ball bearing holder with lubricant holes and fat storage tanks
CN104141694A (en) * 2013-05-08 2014-11-12 襄阳汽车轴承股份有限公司 Deep groove ball bearing with lubrication holes and fat storage tanks in holder ball pockets
DE102013215204A1 (en) * 2013-08-02 2015-02-05 Schaeffler Technologies Gmbh & Co. Kg Split rolling element cage made of plastic
US10451112B2 (en) * 2015-11-25 2019-10-22 Schaeffler Technologies AG & Co. KG Ball bearing cage
CN110686009A (en) * 2019-10-29 2020-01-14 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Improved single-row cylindrical roller bearing
CN110686009B (en) * 2019-10-29 2024-02-09 瓦房店轴承集团国家轴承工程技术研究中心有限公司 Improved single-row cylindrical roller bearing
CN114001094A (en) * 2021-11-23 2022-02-01 苏州汇智精保持架科技有限公司 Multifunctional glass fiber injection molding bearing retainer and preparation method thereof
CN114001094B (en) * 2021-11-23 2024-05-24 苏州汇智精保持架科技有限公司 Multifunctional glass fiber injection molding bearing retainer and preparation method thereof
CN117249170A (en) * 2023-09-19 2023-12-19 宜兴华永电机有限公司 Motor bearing unit with oil leakage prevention lubrication sealing structure
CN117249170B (en) * 2023-09-19 2024-04-30 宜兴华永电机有限公司 Motor bearing unit with oil leakage prevention lubrication sealing structure

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