JP2577053B2 - Synthetic resin cage for spherical roller bearings - Google Patents

Synthetic resin cage for spherical roller bearings

Info

Publication number
JP2577053B2
JP2577053B2 JP63153055A JP15305588A JP2577053B2 JP 2577053 B2 JP2577053 B2 JP 2577053B2 JP 63153055 A JP63153055 A JP 63153055A JP 15305588 A JP15305588 A JP 15305588A JP 2577053 B2 JP2577053 B2 JP 2577053B2
Authority
JP
Japan
Prior art keywords
spherical roller
axis
spherical
roller
pocket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP63153055A
Other languages
Japanese (ja)
Other versions
JPH01320321A (en
Inventor
靖之 辻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Toyo Bearing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTN Toyo Bearing Co Ltd filed Critical NTN Toyo Bearing Co Ltd
Priority to JP63153055A priority Critical patent/JP2577053B2/en
Publication of JPH01320321A publication Critical patent/JPH01320321A/en
Application granted granted Critical
Publication of JP2577053B2 publication Critical patent/JP2577053B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window cages
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Rolling Contact Bearings (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、自動調心ころ軸受用合成樹脂製保持器の
改良構造に関する。Description: TECHNICAL FIELD The present invention relates to an improved structure of a synthetic resin cage for a self-aligning roller bearing.

〔従来の技術〕[Conventional technology]

この種の保持器の従来例として、第８図および第９図
に示すように、球面ころ（42）を収容するポケット（4
4）を形成する柱（46）の側面が、軸受の軸心と球面こ
ろの軸心（48）とを含む平面（50）に対して直角な平面
であって球面ころの軸心（48）を含んでいる平面（52）
より軸受内側と軸受外側とに、球面ころの転動面（4
2′）に則した曲率の円弧を軸方向および半径方向に有
する凹曲面（54）（54）をそれぞれ有している。すなわ
ち、凹曲面（54）（54）は、球面ころの軸心（48）を含
んでいる平面（52）による断面が円弧であり、また凹曲
面（54）（54）は軸と直角方向の平面による断面が円弧
である。As a conventional example of this type of cage, as shown in FIGS. 8 and 9, a pocket (4) for accommodating a spherical roller (42) is used.
The side surface of the column (46) forming 4) is a plane perpendicular to a plane (50) including the axis of the bearing and the axis of the spherical roller (48), and the axis of the spherical roller (48). Plane containing (52)
The rolling surface (4
It has concave curved surfaces (54) and (54) each having an arc having a curvature in accordance with 2 ′) in the axial direction and the radial direction. That is, the concave curved surfaces (54) and (54) are arc-shaped in cross section by the plane (52) including the axis (48) of the spherical roller, and the concave curved surfaces (54) and (54) are perpendicular to the axis. The cross section by a plane is a circular arc.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

上記従来の保持器は、保持器の柱の側面が球面ころと
面接触し、保持器と球面ころとの接触面圧が低いとされ
ている。In the conventional cage described above, the side surfaces of the pillars of the cage are in surface contact with the spherical rollers, and the contact surface pressure between the cage and the spherical rollers is low.

しかしながら、柱の側面が球面ころと完全に面接触す
るとは限らず、製造誤差や使用に伴う摩耗等を考慮する
と、常に面接触が維持されるとは限らない。面接触でな
いとすると、局部的な線または点当たりとなるが、面接
触を予定している以上、実際にどの部分でそのような局
部的接触を生ずるか見当がつかないものである。したが
って、対策を講じにくい。However, the side surfaces of the columns are not always in perfect surface contact with the spherical rollers, and the surface contact is not always maintained in consideration of manufacturing errors, wear due to use, and the like. If there is no surface contact, there will be a local line or point hit, but as long as the surface contact is planned, there is no telling what part actually makes such a local contact. Therefore, it is difficult to take measures.

この発明は上に述べたような問題点に鑑み、柱の側面
ところとの接触部位を明らかにし、かつ、該部の潤滑効
果を高めることを目的とする。The present invention has been made in consideration of the above-described problem, and has as its object to clarify a contact portion with a side surface of a column and enhance a lubricating effect of the portion.

〔課題を解決するための手段〕[Means for solving the problem]

この発明は、自動調心ころ軸受の内・外輪の軌道間を
転走する複数の球面ころを所定間隔に保つため、内側環
状部と外側環状部とを周方向に等配した柱により連結し
て、隣り合う柱の周方向に互いに対向する側面と両環状
部とで、球面ころを収容するポケットを画成した合成樹
脂製保持器であって、次の構成に特徴がある。The present invention relates to a spherical roller bearing, in which a plurality of spherical rollers rolling between the inner and outer raceways are maintained at a predetermined interval by connecting an inner annular portion and an outer annular portion by columns which are equally arranged in a circumferential direction. Further, a synthetic resin retainer in which a pocket for accommodating a spherical roller is defined by side surfaces and both annular portions of the adjacent pillars that are circumferentially opposed to each other, and is characterized by the following configuration.

すなわち、各ポケットの周方向の壁面を形成する柱の
側面は、中央部と、この中央部の両側に位置する端部と
からなる。That is, the side surface of the pillar forming the circumferential wall surface of each pocket has a central portion and end portions located on both sides of the central portion.

そして、中央部は、ポケットに収容された状態の球面
ころの軸線に垂直な断面で見れば、球面ころの最大径よ
り大径の円の一部をなす。また、球面ころの軸線を含
み、球面ころの軸線と保持器の軸線を共に含む平面に対
して直交する断面で見ると、中央部は球面ころの軸線に
平行な直線をなす。The central portion forms a part of a circle having a diameter larger than the maximum diameter of the spherical roller when viewed in a cross section perpendicular to the axis of the spherical roller housed in the pocket. Further, when viewed in a cross section orthogonal to a plane including the spherical roller axis and including both the spherical roller axis and the retainer axis, the central portion forms a straight line parallel to the spherical roller axis.

各端部は、球面ころの軸線を含み、球面ころの軸線と
保持器の軸線を共に含む平面に対して直交する断面で見
ると、球面ころの最大径より小径側の一点にて球面ころ
に接する直線をなす。また、上記の点における球面ころ
の軸線に垂直な断面で見ると、各端部は球面ころの接線
をなす上半部と、球面ころとの間に所定のすきまを形成
しうる直径の円の一部をなす下半部とからなっている。Each end includes the axis of the spherical roller, and when viewed in a cross section orthogonal to a plane including both the axis of the spherical roller and the axis of the retainer, the spherical roller is formed at one point on the smaller diameter side than the maximum diameter of the spherical roller. Make a tangent straight line. Also, when viewed in a cross section perpendicular to the axis of the spherical roller at the above point, each end is a circle having a diameter capable of forming a predetermined clearance between the upper half forming a tangent to the spherical roller and the spherical roller. It consists of a lower part that forms part.

〔作用〕[Action]

保持器の柱部を上述のような構成としたことにより、
球面ころは各柱の側面と２点で接触する。すなわち、球
面ころの最大径部と、これに対応する柱の側面の中央部
との間には通常のポケットすきまより大きなすきまが存
在し、球面ころの中央部より小径側が、柱の側面の端部
と点接触する。By making the column of the retainer as described above,
The spherical roller contacts the side surface of each column at two points. That is, there is a clearance larger than the normal pocket clearance between the maximum diameter portion of the spherical roller and the corresponding central portion of the side surface of the column, and the smaller diameter side than the central portion of the spherical roller is the end of the side surface of the column. Point contact with the part.

したがって、通常最大面圧の発生する球面ころの最大
径部が柱と接触しないため、油膜切れの生じる虞れがな
くなる。Therefore, since the maximum diameter portion of the spherical roller where the maximum surface pressure normally occurs does not come into contact with the column, there is no possibility that the oil film may be broken.

球面ころは柱の側面の端部との点接触によって案内さ
れるため、トルクが小さい。しかも、該部における柱の
側面が平面と曲面とからなるため、いわゆるくさび作用
により潤滑油の吸い込みを助長する。Since the spherical roller is guided by point contact with the end of the side surface of the column, the torque is small. In addition, since the side surface of the column in this portion is composed of a flat surface and a curved surface, suction of lubricating oil is promoted by a so-called wedge action.

〔実施例〕〔Example〕

以下、図面に示す実施例について説明する。 Hereinafter, embodiments shown in the drawings will be described.

自動調心ころ軸受は、内周面に軌道を形成した外輪
（２）と、外周面に２列の軌道を形成した内輪（４）
と、内・外輪の軌道間を転走する２列のたる形の球面こ
ろ（６）（６）と、各列における球面ころ（６）同士の
間隔を保持するため球面ころの案内をする保持器（８）
（８）を包含している〔第７図〕。The self-aligning roller bearing includes an outer ring (2) having a raceway formed on an inner peripheral surface and an inner race (4) having two rows of raceways formed on an outer peripheral surface.
And two rows of spherical rollers (6) and (6) rolling between the inner and outer raceways, and a guide for guiding the spherical rollers in order to maintain an interval between the spherical rollers (6) in each row. Tableware (8)
(8) [FIG. 7].

保持器（８）は合成樹脂製で、第１図乃至第３図から
わかるように、内側環状部（12）と外側環状部（14）
を、周方向に等配した複数の柱（16）で連結した構造で
ある。また、外側環状部（14）の内径面を内輪軌道に接
触させて保持器の回転の案内を行うようにしている。い
わゆる内輪案内の保持器であって、外側環状部（14）と
内輪軌道との間のすきまである案内すきまの範囲内で径
方向に自由に動くことができる。なお、内輪案内の保持
器では、内輪軌道と保持器の接触面において、内輪軌道
の周速は転動体の公転速度で定まる保持器案内面の周速
より常に大きいので、保持器は内輪案内面で摩擦力によ
って駆動される。The retainer (8) is made of synthetic resin, and as can be seen from FIGS. 1 to 3, the inner annular portion (12) and the outer annular portion (14).
Are connected by a plurality of pillars (16) equally distributed in the circumferential direction. Further, the inner circumferential surface of the outer annular portion (14) is brought into contact with the inner raceway to guide the rotation of the cage. This is a so-called inner ring guide retainer, which can freely move in the radial direction within a guide clearance extending up to the clearance between the outer annular portion (14) and the inner ring raceway. In the cage of the inner ring guide, the peripheral speed of the inner ring raceway is always higher than the peripheral speed of the cage guide surface determined by the revolution speed of the rolling element at the contact surface between the inner ring raceway and the cage. Driven by frictional force.

隣り合った柱（16）（16）の周方向に対向する側面
（18）（18）と内側および外側環状部（12）（14）とで
球面ころ（６）を収容するポケット（20）を画成する。
したがって、柱（16）の側面（18）はポケット（20）の
周方向壁面を提供し、球面ころ（６）の案内をする重要
な機能を果たすべきところである。A pocket (20) for accommodating the spherical roller (6) is formed by the circumferentially opposed side surfaces (18) (18) of the adjacent columns (16) (16) and the inner and outer annular portions (12) (14). To define.
Thus, the side surfaces (18) of the pillars (16) provide the circumferential wall surface of the pocket (20) and should play an important role in guiding the spherical rollers (6).

この側面（18）は、中央部（23）と、中央部（23）の
両側つまり、それぞれ内側環状部（12）側および外側環
状部（14）側に位置する端部（22）（24）とを含む。The side surface (18) has a central portion (23) and both ends of the central portion (23), that is, ends (22) and (24) located on the inner annular portion (12) side and the outer annular portion (14) side, respectively. And

中央部（23）の断面形状すなわち、ポケット（20）に
収容された状態の球面ころ（６）の軸線に垂直な断面
は、第４図に示すように、球面ころ（６）の最大径より
大径の仮想円D1（26）の一部をなす円弧を呈している。
これは、第８図および第９図に示した従来例の場合がそ
うであったように、通常球面ころの最大径部で最大面圧
が発生するものであるが、球面ころの最大径部が接触し
ないように逃がしを設けて油膜切れ等の不具合を避けた
ものである。中央部の平面形状または、球面ころ（６）
の軸線を含み球面ころ（６）の軸線と保持器（８）の軸
線を共に含む半径方向平面に対して直交する断面は、第
３図からわかるように、球面ころ（６）の軸線に平行な
直線を呈する。中央部（23）の上端および下端は、柱
（16）の長手方向に沿って延在する突片（28）（28′）
を形成している。突片（28）（28′）はポケット（20）
に向って周方向に突出しており、ポケット（20）を挟ん
で対向する一対の突片（28）（28）又は突片（28′）
（28′）の離間距離は、球面ころ（６）の最大径より僅
かに小さい。したがって、突片（28）（28′）は、ポケ
ット（20）内に収容された球面ころ（６）の脱落防止の
働きをする。球面ころ（６）の挿入・抜取りを可能にす
るため、柱（16）の上面に凹所（30）を設けて突片（2
8）に弾性を付与している。これは、保持器（８）の製
造の際の型抜きにも有利に作用する。The cross-sectional shape of the central portion (23), that is, the cross-section perpendicular to the axis of the spherical roller (6) accommodated in the pocket (20), is larger than the maximum diameter of the spherical roller (6) as shown in FIG. It has an arc that forms part of a large-diameter virtual circle D 1 (26).
In this case, as in the case of the conventional example shown in FIGS. 8 and 9, the maximum surface pressure is usually generated at the maximum diameter portion of the spherical roller. In this case, a relief is provided so as not to come into contact with the oil to avoid problems such as oil film breakage. Central shape or spherical roller (6)
The cross section orthogonal to the radial plane including both the axis of the spherical roller (6) and the axis of the cage (8) is parallel to the axis of the spherical roller (6), as can be seen from FIG. A straight line. The upper end and the lower end of the central portion (23) are protruding pieces (28) (28 ') extending along the longitudinal direction of the pillar (16).
Is formed. The protruding pieces (28) and (28 ') are pockets (20)
A pair of protruding pieces (28) (28) or protruding pieces (28 ') which project in the circumferential direction toward
The separation distance of (28 ') is slightly smaller than the maximum diameter of the spherical roller (6). Therefore, the protruding pieces (28) (28 ') function to prevent the spherical roller (6) housed in the pocket (20) from falling off. In order to enable the insertion and removal of the spherical roller (6), a recess (30) is provided
8) has elasticity. This also has an advantageous effect on die cutting during the manufacture of the cage (8).

中央部（23）の両側の端部（22）（24）は第３図の平
面形状に関しては互いに対称である。すなわち、第3A図
に幾分誇張して示すように、各端部（22）又は（24）は
球面ころ（６）の最大径より小径側の一点で球面ころ
（６）と接する直接を呈している。これは、球面ころ
（６）の軸線を含み、球面ころ（６）の軸線と保持器の
軸線を共に含む半径方向平面に対して直角な断面におい
ても同じである。The ends (22) and (24) on both sides of the central portion (23) are symmetrical to each other with respect to the planar shape of FIG. That is, as shown somewhat exaggeratedly in FIG. 3A, each end (22) or (24) presents a direct contact with the spherical roller (6) at one point on the smaller diameter side than the maximum diameter of the spherical roller (6). ing. This is also the case for the section perpendicular to the radial plane, which includes the axis of the spherical roller (6) and also includes the axis of the spherical roller (6) and the axis of the cage.

球面ころ（６）の軸線に垂直な断面で見ると、各端部
（22）（24）は、平面状の上半部（22a）（24a）と、球
面ころ（６）より僅かに大きい直径の仮想円D2（32）の
一部をなす下半部（22b）（24b）とからなっている〔第
５図、第６図〕。なお、仮想円D2の中心は球面ころ
（６）の軸線上に位置させてもよいが、図示実施例の場
合、距離Ｘだけ下方にずらしてある。これは、球面ころ
（６）を保持する曲面状の下半部（22b）（24b）をでき
るだけ多く確保するようにした例である。When viewed in a section perpendicular to the axis of the spherical roller (6), each end (22) (24) has a planar upper half (22a) (24a) and a slightly larger diameter than the spherical roller (6). And a lower half (22b) (24b) which forms a part of the virtual circle D 2 (32) [FIGS. 5 and 6]. The center of the virtual circle D 2 is may be positioned on the axis of the spherical rollers (6), in the illustrated embodiment, a distance X are offset downwards. This is an example in which the curved lower half portion (22b) (24b) holding the spherical roller (6) is as large as possible.

このように、各端部（22）（24）は平面（22a）（24
a）と円錐面（22b）（24b）の複合面であり、軸受の回
転中は、両者の境界附近に、球面ころ（６）の最大径部
より小径側が点接触することになる。かかる点接触によ
って球面ころ（６）の案内が行われることから、第８図
および第９図の従来例のような面接触に比べて面圧は高
くなる。しかし、接触位置が常に決まっているので、正
確な案内が維持される。また、接触位置より上部つまり
保持器の半径方向外側が平面であるため、潤滑油の引き
込み作用を旺盛にして、面圧の高い分を潤滑効果の向上
でカバーすることができる。なお、端部（22）（24）の
下半部（22b）（24b）は、上述のように円錐面にするほ
か円筒面となすこともできる。Thus, each end (22) (24) is flat (22a) (24
a) and a conical surface (22b) (24b). During the rotation of the bearing, near the boundary between the two, point contact is made on the smaller diameter side than the maximum diameter portion of the spherical roller (6). Since the spherical roller (6) is guided by such point contact, the surface pressure is higher than that of the surface contact as in the conventional example of FIGS. 8 and 9. However, since the contact position is always determined, accurate guidance is maintained. In addition, since the upper part from the contact position, that is, the outside in the radial direction of the retainer is a flat surface, the lubricating oil drawing-in action is enhanced, and the higher surface pressure can be covered by the improvement of the lubricating effect. The lower halves (22b) and (24b) of the end portions (22) and (24) may have a cylindrical surface in addition to the conical surface as described above.

〔発明の効果〕〔The invention's effect〕

以上説明したように、この発明によれば、球面ころと
柱の側面とが点接触となるのでトルクが小さく、しかも
接触点は球面ころの最大径よりも小径側であり、球面こ
ろの最大径部は接触しないように逃がしを設けているた
め、ころの最大面圧の発生する場所の油膜切れがない。
したがって、寿命向上を図るうえで有利な保持器構造で
ある。さらに、球面ころと接触して案内を行う部分は平
面と曲面（円錐面または円筒面）との複合面であって、
接触点附近から保持器の半径方向外側に向って開くくさ
び空間を形成するので、潤滑油の吸い込みが旺盛とな
り、潤滑効果が向上する。As described above, according to the present invention, since the spherical roller and the side surface of the column are in point contact, the torque is small, and the contact point is on the smaller diameter side than the maximum diameter of the spherical roller. Since the parts are provided with relief so that they do not come into contact with each other, there is no oil film breakage at the place where the maximum surface pressure of the rollers occurs.
Therefore, the cage structure is advantageous for improving the life. Furthermore, the part that guides by contacting the spherical roller is a composite surface of a flat surface and a curved surface (conical surface or cylindrical surface),
Since a wedge space that opens from the vicinity of the contact point toward the outside in the radial direction of the cage is formed, suction of lubricating oil is increased, and the lubricating effect is improved.

【図面の簡単な説明】[Brief description of the drawings]

第１図はこの発明の実施例を示す保持器の柱部分の斜視
図、 第２図は保持器の軸方向断面図、 第３図は第２図のIII矢視図、 第3A図は第３図のポケットの断面図、 第４図は第２図のIV−IV線断面図、 第５図は第２図のＶ−Ｖ線断面図、 第６図は第２図のVI−VI線断面図、 第７図は自動調心ころ軸受の軸方向断面図、 第８図および第９図はそれぞれ従来の技術を示す保持器
要部の平面図および横断面図である。 8:保持器 12:内側環状部 14:外側環状部 16:柱 18:柱の側面 22:端部（内側） 22a:平面 22b:曲面 23:中央部 24:端部（外側） 24a:平面 24b:曲面 28,28′：突片 20:ポケット 30:凹所FIG. 1 is a perspective view of a pillar portion of a retainer showing an embodiment of the present invention, FIG. 2 is an axial sectional view of the retainer, FIG. 3 is a view taken in the direction of arrow III in FIG. 2, and FIG. 3 is a sectional view of the pocket, FIG. 4 is a sectional view taken along line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along line VV of FIG. 2, and FIG. 6 is a line VI-VI of FIG. FIG. 7 is an axial sectional view of the self-aligning roller bearing, and FIGS. 8 and 9 are a plan view and a transverse sectional view, respectively, of a main part of a cage showing a conventional technique. 8: Cage 12: Inner annular part 14: Outer annular part 16: Column 18: Side of column 22: End (inside) 22a: Flat 22b: Curved surface 23: Central part 24: End (outside) 24a: Flat 24b : Curved surface 28,28 ': Protrusion 20: Pocket 30: Recess

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】自動調心ころ軸受の内・外輪の軌道間を転
走する複数の球面ころを所定間隔に保つため、内側環状
部と外側環状部とを周方向に等配した柱により連結し
て、隣り合う柱の周方向に互いに対向する側面と両環状
部とで、球面ころを収容するポケットを画成した合成樹
脂製保持器において、 各ポケットの周方向の壁面を提供する柱の側面が、中央
部と該中央部の両側に位置する端部とからなり、 中央部は、球面ころの軸線に平行な直線状で、かつ、球
面ころの軸線に垂直な断面において球面ころの最大径よ
り大径の円の一部をなす凹部を有し、上下にポケット方
向に突出したころ止め用の突片を形成しており、 各端部は、球面ころの軸線を含み、球面ころの軸線と保
持器の軸線を共に含む平面に対して直交する断面におい
て、球面ころの最大径より小径側の一点にて球面ころに
接する直線をなし、上記点における球面ころの軸線に垂
直な断面において、球面ころの接線をなす上半部と、球
面ころとの間に所定のすきまを形成しうる直径の円の一
部をなす下半部とを含んでいることを特徴とする自動調
心ころ軸受用合成樹脂製保持器。An inner annular portion and an outer annular portion are connected to each other by a column which is equally arranged in a circumferential direction in order to keep a plurality of spherical rollers rolling between orbits of inner and outer rings of a self-aligning roller bearing at predetermined intervals. Then, in a synthetic resin retainer in which the side surfaces and the two annular portions of the adjacent pillars that face each other in the circumferential direction define a pocket for accommodating the spherical roller, the pillar that provides the circumferential wall surface of each pocket The side surface includes a central portion and ends located on both sides of the central portion. The central portion is a straight line parallel to the axis of the spherical roller and has a maximum cross section perpendicular to the axis of the spherical roller. It has a concave part that forms a part of a circle with a diameter larger than the diameter, and forms a roller stopper protruding vertically in the pocket direction.Each end includes the axis of the spherical roller, In a section perpendicular to the plane containing both the axis and the axis of the cage, the spherical surface A straight line tangent to the spherical roller at one point on the smaller diameter side than the maximum diameter of the roller, and in a cross section perpendicular to the axis of the spherical roller at the above point, a predetermined distance is defined between the upper half of the tangent to the spherical roller and the spherical roller. And a lower half part forming a part of a circle having a diameter capable of forming a clearance.
JP63153055A 1988-06-20 1988-06-20 Synthetic resin cage for spherical roller bearings Expired - Lifetime JP2577053B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63153055A JP2577053B2 (en) 1988-06-20 1988-06-20 Synthetic resin cage for spherical roller bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63153055A JP2577053B2 (en) 1988-06-20 1988-06-20 Synthetic resin cage for spherical roller bearings

Publications (2)

Publication Number Publication Date
JPH01320321A JPH01320321A (en) 1989-12-26
JP2577053B2 true JP2577053B2 (en) 1997-01-29

Family

ID=15553993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63153055A Expired - Lifetime JP2577053B2 (en) 1988-06-20 1988-06-20 Synthetic resin cage for spherical roller bearings

Country Status (1)

Country Link
JP (1) JP2577053B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013226550B4 (en) * 2013-12-19 2016-02-11 Aktiebolaget Skf Rolling bearing cage or cage element
DE102015216467B4 (en) * 2015-08-28 2020-07-02 Aktiebolaget Skf Rolling cage or segment

Also Published As

Publication number Publication date
JPH01320321A (en) 1989-12-26

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