JPH09151946A - Roller bearing - Google Patents
Roller bearingInfo
- Publication number
- JPH09151946A JPH09151946A JP8071219A JP7121996A JPH09151946A JP H09151946 A JPH09151946 A JP H09151946A JP 8071219 A JP8071219 A JP 8071219A JP 7121996 A JP7121996 A JP 7121996A JP H09151946 A JPH09151946 A JP H09151946A
- Authority
- JP
- Japan
- Prior art keywords
- cage
- lubricant
- diameter surface
- roller bearing
- ring
- 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.)
- Granted
Links
- 239000000314 lubricant Substances 0.000 claims abstract description 70
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- F16C33/66—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
- 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
- F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
-
- 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
- F16C33/4629—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 metal, e.g. cast or machined 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
- 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
- F16C19/24—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 radial load mainly
- F16C19/26—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 radial load mainly with a single row of 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
- F16C2360/00—Engines or pumps
- F16C2360/44—Centrifugal pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、過給機等の高速
回転する主軸軸受等で、保持器形状、内輪形状等を変更
することにより内部への潤滑剤の巻き込み性を改善した
鍔付き円筒ころ軸受等のころ軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spindle bearing or the like that rotates at high speed in a supercharger or the like, and has a collar with a collar, in which the shape of the cage and the shape of the inner ring are changed to improve the ability of the lubricant to be entrained inside. The present invention relates to a roller bearing such as a roller bearing.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】高速回転
する軸受は、保持器案内面や転走面への潤滑剤の供給が
重要であり、また機械加工により精度良く作られたもみ
抜き保持器が採用される。このもみ抜き保持器は、内輪
または外輪の案内面とのなじみ性が良くなるように、高
力黄銅鋳物（ＨＢｓＣ1 ）等の材料が使用される。ま
た、図１０に示したように、内輪５１の外径面に大きな
面取部５１ａを設け、矢印ａのように供給される潤滑剤
が保持器案内面５１ｂおよび転走面５１ｃに入るように
工夫されている。2. Description of the Related Art In a bearing rotating at a high speed, it is important to supply a lubricant to a cage guide surface and a rolling surface, and a machined and held machined retainer is precisely manufactured. Vessels are adopted. This machined cage is made of a material such as high-strength brass casting (HBsC 1 ) so that it has good compatibility with the guide surface of the inner ring or the outer ring. Further, as shown in FIG. 10, a large chamfered portion 51a is provided on the outer diameter surface of the inner ring 51 so that the lubricant supplied as shown by the arrow a enters the cage guide surface 51b and the rolling surface 51c. It is devised.
【０００３】過給機等の主軸軸受は、近年さらに高速
（ｄｎ値＝80×104 〜100 ×104 ）となってきており、
さらに潤滑条件（粘度，量，劣化温度）についても厳し
くなってきている。そのため、保持器案内面および転走
面への潤滑剤の供給に確実さが求められている。そこ
で、保持器材料をＳＡＥ４３４０（ニッケルモリブデン
鋼）等の鉄系材料として強度アップさせ、肉厚を薄くす
ると同時に、銀めっきやリン酸塩被膜処理を施し、なじ
み性を増す手法が採られる。しかし、これらにおいて
も、潤滑条件が厳しい場合、十分に満足する潤滑剤の供
給性を確保することが難しい。In recent years, main shaft bearings for turbochargers and the like have become even faster (dn value = 80 × 10 4 to 100 × 10 4 ).
Furthermore, the lubrication conditions (viscosity, amount, deterioration temperature) are becoming severe. Therefore, it is required to reliably supply the lubricant to the cage guide surface and the rolling surface. Therefore, a method is adopted in which the cage material is made of an iron-based material such as SAE4340 (nickel-molybdenum steel) to increase the strength and reduce the wall thickness, and at the same time, silver plating or a phosphate coating treatment is performed to increase the conformability. However, even in these cases, when the lubrication conditions are severe, it is difficult to secure a sufficiently satisfactory supply of the lubricant.
【０００４】この発明の目的は、保持器案内面や転走面
の潤滑性が改善され、潤滑条件の劣悪化に対して安定的
な軸受の回転が得られるころ軸受を提供することであ
る。An object of the present invention is to provide a roller bearing in which the lubricity of the cage guide surface and the rolling surface is improved and stable rotation of the bearing can be obtained against deterioration of lubrication conditions.
【０００５】[0005]
【課題を解決するための手段】この発明の請求項１記載
のころ軸受は、保持器の外径面の側縁に環状の凹み部を
設け、保持器の内径面に多条ねじ状の潤滑剤案内溝を形
成したものである。このように潤滑剤案内溝を設けるこ
とにより、保持器の回転により潤滑剤が巻き込まれ、い
わば「ねじポンプ効果」が得られ、内輪の保持器案内面
と保持器の間の潤滑が良好に行われる。A roller bearing according to claim 1 of the present invention is provided with an annular recessed portion on a side edge of an outer diameter surface of a cage, and an inner diameter surface of the cage is lubricated in a multiple thread form. The agent guide groove is formed. By providing the lubricant guide groove in this way, the lubricant is entrained by the rotation of the cage, so to speak, the "screw pump effect" is obtained, and the lubrication between the cage guide surface of the inner ring and the cage is performed well. Be seen.
【０００６】この発明の請求項２記載のころ軸受は、こ
ろの幅方向位置を内外輪の中心に対して偏らせ、保持器
のころ偏り側と反対側となるリング状部分の幅を偏り側
のリング状部分よりも長くし、この長い方のリング状部
分の内径面にねじ状の潤滑剤案内溝を設けたものであ
る。ねじ状の潤滑剤案内溝は、多条ねじ状のものであっ
ても、１本に続くねじ状のものであっても良い。このよ
うに、ころの位置を偏らせることにより、潤滑剤の供給
を軸受の片側のみから行う場合に、潤滑剤供給側のリン
グ状部分の幅を広くとれる。これにより、ねじ状の潤滑
剤案内溝の長さが長くなり、ねじポンプ効果が大きくな
る。したがって、供給された潤滑剤が一層効率良くころ
の周辺に行き渡り、円滑な潤滑が行われる。また、請求
項２記載の発明において、内輪を両鍔付きのものとし、
保持器を、広い方のリング状部分におけるころの近傍部
分で内輪鍔に案内させる片鍔案内としても良い。片鍔案
内としても、ころの位置が偏っているため、内輪鍔の保
持器案内面が保持器の幅方向の中央付近となり、バラン
ス良く保持器の案内が行える。このように片鍔案内とす
ることで、潤滑剤非供給側の内輪鍔の保持器案内面と保
持器との隙間を大きくとれ、潤滑剤の排出が円滑とな
る。したがって、油の入り難い潤滑剤非供給側の案内面
の摩耗を減らすことが可能となる。In the roller bearing according to claim 2 of the present invention, the widthwise position of the rollers is biased with respect to the center of the inner and outer rings, and the width of the ring-shaped portion of the cage opposite to the roller biasing side is biased. Is longer than the ring-shaped portion, and a screw-shaped lubricant guide groove is provided on the inner diameter surface of the longer ring-shaped portion. The screw-shaped lubricant guide groove may be a multi-thread screw-shaped groove or a single thread-shaped groove. In this way, by biasing the position of the rollers, when the lubricant is supplied from only one side of the bearing, the width of the ring-shaped portion on the lubricant supply side can be widened. As a result, the length of the screw-shaped lubricant guide groove is increased, and the screw pump effect is increased. Therefore, the supplied lubricant spreads more efficiently around the rollers, and smooth lubrication is performed. Further, in the invention according to claim 2, the inner ring has both collars,
The retainer may be a one-sided collar guide that guides the inner ring collar around the roller in the wider ring-shaped portion. Even in the case of the one-sided collar guide, since the position of the rollers is eccentric, the cage guide surface of the inner ring collar is near the center in the width direction of the cage, and the cage can be guided with good balance. In this way, by using the single collar guide, a large gap can be secured between the cage guide surface and the cage guide surface of the inner ring collar on the non-lubricant supply side, and the lubricant can be discharged smoothly. Therefore, it is possible to reduce wear of the guide surface on the non-lubricant supply side where oil hardly enters.
【０００７】この発明の請求項４記載のころ軸受は、請
求項１の構成の軸受において、多条ねじ状の潤滑剤案内
溝に代えて、保持器の内径面に軸方向に対して角度を持
った複数の潤滑剤案内溝を円周方向に並べて設けてたも
のである。この構成の場合も、保持器の回転により潤滑
剤が巻き込まれ、内輪の保持器案内面と保持器の間の潤
滑が良好に行われる。According to a fourth aspect of the present invention, in the roller bearing according to the first aspect, in place of the multi-thread screw-shaped lubricant guide groove, an angle is formed on the inner diameter surface of the cage with respect to the axial direction. A plurality of lubricant guide grooves that are held are arranged side by side in the circumferential direction. Also in the case of this configuration, the lubricant is caught by the rotation of the cage, and the lubrication between the cage guide surface of the inner ring and the cage is favorably performed.
【０００８】この発明の請求項５記載のころ軸受は、保
持器の内径面の側縁に潤滑剤導入用の面取部を設けたも
のである。軸受の側面から内輪の外径面付近に供給され
る潤滑剤が、前記面取部のために保持器案内面に入り易
くなる。この発明の請求項６記載のころ軸受は、もみ抜
き保持器を用いたころ軸受において、内輪の外径面にお
ける側縁から保持器内径面の側縁付近と対応する幅方向
部分にわたり、断面が凹円弧状曲面の面取部を設けたも
のである。軸受の側面から内輪の外径面付近に供給され
る潤滑剤が、凹円弧状曲面の面取部のため、内輪の回転
による遠心力で、保持器案内面に供給される。この発明
の請求項７記載のころ軸受は、保持器の内径面から外径
面に貫通させて、外輪転走面へ向かう油孔を設けたもの
である。保持器の回転に伴い、油孔から潤滑剤が外輪の
転走面へ供給される。また、内輪の保持器案内面にも潤
滑剤が入り易くなる。この発明の請求項８記載のころ軸
受は、保持器の外径面の側縁部分を凹円弧状曲面の断面
形状としたものである。この保持器外径面の凹円弧状曲
面のため、軸受の側面から内輪の外径面付近に供給され
る潤滑剤が、外輪転走面側へも供給される。この発明の
請求項９記載のころ軸受は、保持器のころピッチ中央に
貫通孔を設けたものである。保持器の回転により、内輪
と保持器間の空気が貫通孔から外径側へ流れ、外部から
の潤滑剤が保持器案内面に吸い込まれる。A roller bearing according to a fifth aspect of the present invention is provided with a chamfered portion for introducing a lubricant at the side edge of the inner diameter surface of the cage. The lubricant supplied from the side surface of the bearing to the vicinity of the outer diameter surface of the inner ring easily enters the cage guide surface due to the chamfered portion. A roller bearing according to claim 6 of the present invention is a roller bearing using a machined cage, wherein the cross section is from the side edge on the outer diameter surface of the inner ring to the widthwise portion corresponding to the vicinity of the side edge of the cage inner diameter surface. A chamfer having a concave arc-shaped curved surface is provided. The lubricant supplied from the side surface of the bearing to the vicinity of the outer diameter surface of the inner ring is supplied to the cage guide surface by the centrifugal force due to the rotation of the inner ring due to the chamfered portion of the concave arc-shaped curved surface. According to a seventh aspect of the present invention, the roller bearing is provided with an oil hole penetrating from the inner diameter surface of the cage to the outer diameter surface thereof toward the outer ring rolling surface. As the cage rotates, the lubricant is supplied from the oil holes to the rolling surface of the outer ring. Further, the lubricant easily enters the cage guide surface of the inner ring. In the roller bearing according to claim 8 of the present invention, the side edge portion of the outer diameter surface of the cage has a concave arc-shaped curved surface cross-sectional shape. Due to the concave arcuate curved surface of the cage outer diameter surface, the lubricant supplied from the side surface of the bearing to the vicinity of the outer diameter surface of the inner ring is also supplied to the outer ring rolling surface side. A roller bearing according to claim 9 of the present invention has a through hole provided at the center of the roller pitch of the cage. Due to the rotation of the cage, the air between the inner ring and the cage flows from the through hole to the outer diameter side, and the lubricant from the outside is sucked into the cage guide surface.
【０００９】[0009]
【発明の実施の形態】この発明の各実施形態を図１〜図
９に基づいて説明する。いずれの例においても、保持器
にはもみ抜き保持器が使用されている。図１はこの発明
の第１の実施形態を示す。このころ軸受は、両鍔付きの
内輪１と外輪２の間に円筒ころ３を介在させた鍔付き円
筒ころ軸受であり、ころ３は保持器４の各ポケットに保
持されている。内輪１の鍔部１ａの外径面は、軸方向の
端部側の部分をテーパ面部１ｂとしてある。この保持器
４は、外径面の両側縁に環状のスクープ、すなわち凹み
部５を設け、保持器４の内径面に多条ねじ状の潤滑剤案
内溝６を形成してある。潤滑剤案内溝６を設ける軸方向
範囲は、内輪１のテーパ面部１ｂに対応する保持器内径
面部分としてある。なお、保持器４の内径面の全体に潤
滑剤案内溝６を形成しても良い。BEST MODE FOR CARRYING OUT THE INVENTION Each embodiment of the present invention will be described with reference to FIGS. In each of the examples, a machined cage is used as the cage. FIG. 1 shows a first embodiment of the present invention. This roller bearing is a flanged cylindrical roller bearing in which a cylindrical roller 3 is interposed between an inner ring 1 and an outer ring 2 having both flanges, and the roller 3 is held in each pocket of a cage 4. The outer diameter surface of the collar portion 1a of the inner ring 1 has a taper surface portion 1b on the end side in the axial direction. The retainer 4 has annular scoops, that is, recesses 5, on both side edges of the outer diameter surface, and a multi-threaded screw-shaped lubricant guide groove 6 is formed on the inner diameter surface of the retainer 4. The axial range in which the lubricant guide groove 6 is provided is the inner diameter surface portion of the cage corresponding to the tapered surface portion 1b of the inner ring 1. The lubricant guide groove 6 may be formed on the entire inner diameter surface of the cage 4.
【００１０】この構成によると、矢印ａで示すように軸
受の側面から内輪１の外径面付近に供給される潤滑剤
が、保持器４の回転に伴って潤滑剤案内溝６により中央
側へ巻き込まれ、内輪１の保持器案内面１ｃへ送られ
る。そのため、保持器案内面１ｃの潤滑性が良くなる。
また、保持器４の外径面に設けた凹み部５のため、前記
のように軸受の側面から供給される潤滑剤が、外輪２の
転走面へも供給され、転走面の潤滑性も向上する。ただ
し、前記の潤滑剤巻き込み効果を得るには、内輪１の回
転方向に制限がある。前記潤滑剤には油等が使用され、
軸受へノズルから噴射させるなどして供給される。According to this structure, the lubricant supplied from the side surface of the bearing to the vicinity of the outer diameter surface of the inner ring 1 as shown by the arrow a is moved to the center side by the lubricant guide groove 6 as the cage 4 rotates. It is caught and sent to the cage guide surface 1c of the inner ring 1. Therefore, the lubricity of the cage guide surface 1c is improved.
In addition, because of the recessed portion 5 provided on the outer diameter surface of the cage 4, the lubricant supplied from the side surface of the bearing as described above is also supplied to the rolling surface of the outer ring 2 to improve the lubricity of the rolling surface. Also improves. However, in order to obtain the above-mentioned lubricant entrainment effect, there is a limitation in the rotating direction of the inner ring 1. Oil or the like is used as the lubricant,
It is supplied by jetting from a nozzle to the bearing.
【００１１】図２はこの発明の第２の実施形態を示す。
この例は、図１の例の軸受において、ころ３の幅方向位
置を内外輪１，２の中心に対して偏らせ、保持器４のこ
ろ偏り側と反対側となるリング状部分４ａの幅を偏り側
のリング状部分４ｂよりも広くしたものである。多ねじ
状の潤滑剤案内溝６は、広い方のリング状部分４ａのみ
に設けてある。潤滑剤案内溝６のねじ方向を回転方向に
合わせることは、図１の例と同様である。潤滑剤案内溝
６は、リング状部分４ａのうち、端部側部分のみに形成
する。内輪１の鍔部１ａによる保持器４の案内は、広い
方のリング状部分４ａにおけるころ３の近傍部分で内輪
鍔１ａに案内させる片鍔案内としてある。すなわち、内
輪１のもう片方の保持器案内面１ｃ2 と保持器３との隙
間を、保持器案内面１ｃ1 と保持器３との隙間よりも大
きくしてある。保持器４の外径面の凹み部５は、潤滑剤
供給側となる広い方のリング状部分４ａのみに設けてあ
る。FIG. 2 shows a second embodiment of the present invention.
In this example, in the bearing of the example of FIG. 1, the widthwise position of the roller 3 is biased with respect to the centers of the inner and outer rings 1 and 2, and the width of the ring-shaped portion 4a opposite to the roller bias side of the cage 4 Is wider than the ring-shaped portion 4b on the bias side. The multi-threaded lubricant guide groove 6 is provided only in the wider ring-shaped portion 4a. Aligning the screw direction of the lubricant guide groove 6 with the rotation direction is the same as in the example of FIG. The lubricant guide groove 6 is formed only on the end side portion of the ring-shaped portion 4a. Guide of the cage 4 by the collar portion 1a of the inner ring 1 is one-sided collar guide for guiding the inner ring collar 1a at a portion of the wider ring-shaped portion 4a in the vicinity of the roller 3. That is, the gap between the other cage guide surface 1c 2 of the inner ring 1 and the cage 3 is made larger than the gap between the cage guide surface 1c 1 and the cage 3. The concave portion 5 on the outer diameter surface of the cage 4 is provided only on the wider ring-shaped portion 4a on the lubricant supply side.
【００１２】この構成の場合、潤滑剤の供給を矢印ａの
ように軸受の片側のみから行う場合に、潤滑剤供給側の
保持器リング状部分４ａの幅を、図１の例のように両側
を同幅にする場合に比べて広く取れる。これにより、ね
じ状の潤滑剤案内溝６の長さが長くなって、ねじポンプ
効果が大きくなり、したがって潤滑剤が一層効率良くこ
ろ３の周辺に行き渡り、円滑な潤滑が行われる。このよ
うに潤滑性が改善されることで、高速回転（例えばｄｎ
値＝８０〜２００×１０4 ）における案内面１ｃ1 ，１
ｃ2 の耐焼付性、耐摩耗性が増す。また、内輪１の保持
器案内面１ｃ1 が保持器４の中央付近に取れるため、内
輪の保持器案内面１ｃ1 を１箇所とできる。そのため、
油の入り難い排出側（反給油側）の案内面１ｃ2 の摩耗
を減らすことが可能となる。この案内面１ｃ2 の摩耗低
減効果は、内輪１および保持器４の両方につき得られ
る。In the case of this construction, when the lubricant is supplied from only one side of the bearing as shown by the arrow a, the width of the cage ring-shaped portion 4a on the lubricant supply side is set to be equal to that of both sides as shown in the example of FIG. Can be wider than when the width is the same. As a result, the length of the screw-shaped lubricant guide groove 6 becomes long, and the screw pump effect becomes large. Therefore, the lubricant is more efficiently distributed around the rollers 3 and smooth lubrication is performed. By improving the lubricity in this way, high-speed rotation (for example, dn
Value = 80 to 200 × 10 4 ) guide surface 1c 1 , 1
The seizure resistance and wear resistance of c 2 are increased. Further, since the cage guide surface 1c 1 of the inner ring 1 is formed near the center of the cage 4, the cage guide surface 1c 1 of the inner ring can be located at one place. for that reason,
It is possible to reduce the wear of the guide surface 1c 2 on the discharge side (anti-oil supply side) where oil hardly enters. The effect of reducing the wear of the guide surface 1c 2 is obtained for both the inner ring 1 and the cage 4.
【００１３】図３はこの発明の第３の実施形態を示す。
この例は、図１の例において、多条ねじ状の潤滑剤案内
溝６を形成した代わりに、保持器４の内径面に軸方向に
対して角度を持った複数の潤滑剤案内溝７を円周方向に
並べて設けたものである。潤滑剤案内溝７を設ける軸方
向範囲は、内輪１のテーパ面部１ｂに対応する保持器内
径面部分としてある。その他の構成は図１の例と同じで
ある。この構成の場合も、潤滑剤が潤滑剤案内溝７で軸
受中央側へ送られ、保持器案内面１ｃの潤滑性が向上す
る。FIG. 3 shows a third embodiment of the present invention.
In this example, instead of forming the multi-thread screw-shaped lubricant guide groove 6 in the example of FIG. 1, a plurality of lubricant guide grooves 7 having an angle with the axial direction are formed on the inner diameter surface of the cage 4. They are arranged side by side in the circumferential direction. The axial range in which the lubricant guide groove 7 is provided is the inner diameter surface portion of the cage corresponding to the tapered surface portion 1b of the inner ring 1. Other configurations are the same as those in the example of FIG. Also in the case of this configuration, the lubricant is sent to the bearing center side through the lubricant guide groove 7, and the lubricity of the cage guide surface 1c is improved.
【００１４】図４はこの発明の第４の実施形態を示す。
この例は、保持器４の内径面の側縁に潤滑剤導入用の面
取部８を設けたものである。保持器４の外径面には前記
各例と同様に環状の凹み部５を設ける。内輪１および外
輪２は、図１の例と同じ形状である。この構成の場合、
保持器４の内径面の大きな面取部８のため、保持器案内
面１ｃに潤滑剤が入り易くなる。FIG. 4 shows a fourth embodiment of the present invention.
In this example, a chamfered portion 8 for introducing a lubricant is provided on the side edge of the inner diameter surface of the cage 4. An annular recess 5 is provided on the outer diameter surface of the cage 4 as in the above-described examples. The inner ring 1 and the outer ring 2 have the same shape as the example of FIG. In this configuration,
Due to the chamfered portion 8 having a large inner diameter surface of the cage 4, the lubricant easily enters the cage guide surface 1c.
【００１５】図５はこの発明の第５の実施形態を示す。
この例は、内輪１の外径面における側縁から保持器内径
面の側縁付近と対応する幅方向部分にわたり、断面が凹
円弧状曲面の面取部１３を設けたものである。その他の
各部の構成は、図１の例と、潤滑剤案内溝６を有しない
他は同じである。この構成の場合、軸受の側面から矢印
ａのように内輪１の外径面付近に供給される潤滑剤が、
凹円弧状曲面の面取部１３のため、内輪１の回転による
遠心力で保持器案内面１ｃに供給される。FIG. 5 shows a fifth embodiment of the present invention.
In this example, a chamfered portion 13 having a concave arcuate curved surface is provided from a side edge on the outer diameter surface of the inner ring 1 to a widthwise portion corresponding to the vicinity of the side edge on the inner diameter surface of the cage. The configuration of each of the other parts is the same as the example of FIG. 1 except that the lubricant guide groove 6 is not provided. In the case of this configuration, the lubricant supplied from the side surface of the bearing to the vicinity of the outer diameter surface of the inner ring 1 as shown by the arrow a is
Since the chamfered portion 13 has a concave arc-shaped curved surface, it is supplied to the cage guide surface 1c by the centrifugal force generated by the rotation of the inner ring 1.
【００１６】図６はこの発明の第６の実施形態を示す。
この例は、保持器４の内径面に環状溝１０を設け、この
環状溝１０の底面から保持器外径面に貫通させて、外輪
転走面へ向かう油孔９を設けたものである。その他の各
部の構成は、図１の例と、潤滑剤案内溝６を有しない他
は同じである。この構成の場合、保持器４の回転に伴
い、油孔９から潤滑剤が外輪１の転走面へ供給される。
また、内輪１の保持器案内面１ｃにも潤滑剤が入り易く
なる。FIG. 6 shows a sixth embodiment of the present invention.
In this example, an annular groove 10 is provided on the inner diameter surface of the retainer 4, and an oil hole 9 is provided so as to penetrate from the bottom surface of the annular groove 10 to the outer diameter surface of the retainer and extend toward the outer ring rolling surface. The configuration of each of the other parts is the same as the example of FIG. 1 except that the lubricant guide groove 6 is not provided. In the case of this configuration, as the cage 4 rotates, the lubricant is supplied from the oil hole 9 to the rolling surface of the outer ring 1.
Further, the lubricant easily enters the cage guide surface 1c of the inner ring 1.
【００１７】図７はこの発明の第７の実施形態を示す。
この例は、保持器４の外径面の側縁部分を凹円弧状曲面
１１の断面形状としたものである。その他の各部の構成
は、図１の例と、潤滑剤案内溝６を有しない他は同じで
ある。この構成の場合、保持器外径面の凹円弧状曲面１
１のため、軸受の側面から内輪１の外径面付近に供給さ
れる潤滑剤が、外輪転走面側へも供給される。FIG. 7 shows a seventh embodiment of the present invention.
In this example, the side edge portion of the outer diameter surface of the cage 4 has a concave arc-shaped curved surface 11 in cross section. The configuration of each of the other parts is the same as the example of FIG. 1 except that the lubricant guide groove 6 is not provided. In the case of this configuration, the concave arc-shaped curved surface 1 of the outer diameter surface of the cage
Therefore, the lubricant supplied from the side surface of the bearing to the vicinity of the outer diameter surface of the inner ring 1 is also supplied to the outer ring rolling surface side.
【００１８】図８はこの発明の第８の実施形態を示す。
この例は、保持器４のころピッチ中央に貫通孔１２を設
けたものである。その他の各部の構成は、図１の例と、
潤滑剤案内溝６を有しない他は同じである。この構成の
場合、保持器４の回転により、内輪１と保持器４間の空
気が貫通孔１２から外径側へ流れ、外部からの潤滑剤が
保持器案内面１ｃに吸い込まれる。貫通孔１２は、図９
の例のように出口側部１２ａを円錐面状に開くように形
成しても良い。また、保持器４の内径面に浅い円周溝１
３を設け、この円周溝１３に貫通孔１２の内端を開口さ
せても良い。FIG. 8 shows an eighth embodiment of the present invention.
In this example, the through hole 12 is provided in the center of the roller pitch of the cage 4. The configuration of each of the other parts is the same as the example of FIG.
It is the same except that the lubricant guide groove 6 is not provided. In the case of this configuration, the rotation of the cage 4 causes the air between the inner ring 1 and the cage 4 to flow from the through hole 12 to the outer diameter side, and the lubricant from the outside is sucked into the cage guide surface 1c. The through hole 12 is shown in FIG.
Alternatively, the outlet side portion 12a may be formed so as to open in a conical surface like the above example. In addition, a shallow circumferential groove 1 is formed on the inner diameter surface of the cage 4.
3 may be provided, and the inner end of the through hole 12 may be opened in the circumferential groove 13.
【００１９】なお、図１ないし図９の実施形態における
各部の構成、すなわち潤滑剤案内溝６，７、凹み部５、
面取部８，１３、油孔９、凹円弧状曲面１１、および貫
通孔１２は、組み合わせ可能な範囲で任意に組み合わせ
て使用しても良い。例えば、図１ないし図７の各例にお
いて、図８や図９の貫通孔１２を設けても良い。また、
図１〜図６の各例において、図７の例のように保持器４
に凹円弧状曲面１１を設けても良い。また、この発明
は、円筒ころ軸受に限らず、円すいころ軸受にも適用で
き、さらに玉軸受に応用することもできる。The construction of each part in the embodiment of FIGS. 1 to 9, namely, the lubricant guide grooves 6, 7, the recess 5,
The chamfered portions 8 and 13, the oil hole 9, the concave arcuate curved surface 11, and the through hole 12 may be used in any combination within a combinable range. For example, in each example of FIGS. 1 to 7, the through hole 12 of FIGS. 8 and 9 may be provided. Also,
In each example of FIGS. 1 to 6, the retainer 4 is provided as in the example of FIG.
Alternatively, a concave arc-shaped curved surface 11 may be provided. Further, the present invention can be applied not only to the cylindrical roller bearing but also to the tapered roller bearing and further to the ball bearing.
【００２０】[0020]
【発明の効果】この発明のころ軸受は、保持器形状や内
輪形状の工夫により、内部への潤滑剤の巻き込み性が良
くなって、転走面や保持器案内面の潤滑性が改善され、
潤滑条件の劣悪化に対して安定的な軸受の回転が得られ
る。EFFECTS OF THE INVENTION The roller bearing according to the present invention has a better cage entrainment and inner ring shape to improve the entrainment of the lubricant into the inside thereof, thereby improving the lubricity of the rolling surface and the cage guide surface.
Stable rotation of the bearing can be obtained even when the lubrication condition deteriorates.
【図１】この発明の第１の実施形態にかかるころ軸受の
部分断面図である。FIG. 1 is a partial sectional view of a roller bearing according to a first embodiment of the present invention.
【図２】この発明の第２の実施形態にかかるころ軸受の
部分断面図である。FIG. 2 is a partial sectional view of a roller bearing according to a second embodiment of the present invention.
【図３】この発明の第３の実施形態にかかるころ軸受の
部分断面図である。FIG. 3 is a partial cross-sectional view of a roller bearing according to a third embodiment of the present invention.
【図４】この発明の第４の実施形態にかかるころ軸受の
部分断面図である。FIG. 4 is a partial cross-sectional view of a roller bearing according to a fourth embodiment of the present invention.
【図５】この発明の第５の実施形態にかかるころ軸受の
部分断面図である。FIG. 5 is a partial sectional view of a roller bearing according to a fifth embodiment of the present invention.
【図６】この発明の第６の実施形態にかかるころ軸受の
部分断面図である。FIG. 6 is a partial sectional view of a roller bearing according to a sixth embodiment of the present invention.
【図７】この発明の第７の実施形態にかかるころ軸受の
部分断面図である。FIG. 7 is a partial cross-sectional view of a roller bearing according to a seventh embodiment of the present invention.
【図８】この発明の第８の実施形態にかかるころ軸受の
部分断面図である。FIG. 8 is a partial sectional view of a roller bearing according to an eighth embodiment of the present invention.
【図９】この発明の第９の実施形態にかかるころ軸受の
部分断面図である。FIG. 9 is a partial sectional view of a roller bearing according to a ninth embodiment of the present invention.
【図１０】従来例の断面図である。FIG. 10 is a sectional view of a conventional example.
１…内輪、１ａ…鍔部、１ｃ，１ｃ1 ，１ｃ2 …保持器
案内面、２…外輪、３…ころ、４…保持器、４ａ，４ｂ
…リング状部分、５…凹み部、６，７…潤滑剤案内溝、
８…面取部、９…油孔、１０…環状溝、１１…凹円弧状
曲面、１２…貫通孔、１３…面取部1 ... inner ring, 1a ... flange portion, 1c, 1c 1, 1c 2 ... cage guide surfaces, 2 ... outer ring, 3 ... Roller 4 ... retainer, 4a, 4b
... Ring-shaped part, 5 ... Recessed part, 6, 7 ... Lubricant guide groove,
8 ... Chamfer, 9 ... Oil hole, 10 ... Annular groove, 11 ... Concave arc curved surface, 12 ... Through hole, 13 ... Chamfer
Claims (9)
設け、保持器の内径面に多条ねじ状の潤滑剤案内溝を形
成したころ軸受。1. A roller bearing in which an annular recess is provided on a side edge of an outer diameter surface of a cage, and a multi-thread screw-shaped lubricant guide groove is formed on an inner diameter surface of the cage.
て偏らせ、保持器のころ偏り側と反対側となるリング状
部分の幅を偏り側のリング状部分よりも広くし、この広
い方のリング状部分の内径面にねじ状の潤滑剤案内溝を
設けたころ軸受。2. The position of the rollers in the width direction is deviated with respect to the center of the inner and outer rings, and the width of the ring-shaped portion of the cage opposite to the roller deviated side is made wider than that of the deviated side. Roller bearings with a threaded lubricant guide groove on the inner diameter surface of the wider ring-shaped part.
前記広い方のリング状部分におけるころの近傍部分で内
輪の鍔に案内させる片鍔案内とした請求項２記載のころ
軸受。3. The inner ring is provided with both collars, and the cage is
3. The roller bearing according to claim 2, wherein a one-sided collar guide is provided for guiding the collar of the inner ring near the roller in the wider ring-shaped portion.
設け、保持器の内径面に軸方向に対して角度を持った複
数の潤滑剤案内溝を円周方向に並べて設けたころ軸受。4. An annular recess is provided on the side edge of the outer diameter surface of the cage, and a plurality of lubricant guide grooves having an angle with respect to the axial direction are provided side by side in the circumferential direction on the inner diameter surface of the cage. Roller bearings.
面取部を設けたころ軸受。5. A roller bearing in which a chamfered portion for introducing a lubricant is provided on a side edge of an inner diameter surface of a cage.
て、内輪の外径面における側縁から保持器内径面の側縁
付近と対応する幅方向部分にわたり、断面が凹円弧状曲
面の面取部を設けたころ軸受。6. A chamfered chamfer having a concave arcuate curved surface in a roller bearing provided with a machined cage from a side edge on the outer diameter surface of the inner ring to a width direction portion corresponding to the vicinity of the side edge of the inner diameter surface of the cage. Roller bearing with parts.
て、外輪転走面へ向かう油孔を設けたころ軸受。7. A roller bearing provided with an oil hole that penetrates from the inner diameter surface of the cage to the outer diameter surface thereof and extends toward the outer ring rolling surface.
面の断面形状としたころ軸受。8. A roller bearing in which a side edge portion of an outer diameter surface of the cage has a concave arc-shaped curved surface in cross section.
たころ軸受。9. A roller bearing in which a through hole is provided in the center of the roller pitch of the cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07121996A JP3681811B2 (en) | 1995-09-29 | 1996-02-29 | Roller bearing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7-276281 | 1995-09-29 | ||
| JP27628195 | 1995-09-29 | ||
| JP07121996A JP3681811B2 (en) | 1995-09-29 | 1996-02-29 | Roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09151946A true JPH09151946A (en) | 1997-06-10 |
| JP3681811B2 JP3681811B2 (en) | 2005-08-10 |
Family
ID=26412330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07121996A Expired - Fee Related JP3681811B2 (en) | 1995-09-29 | 1996-02-29 | Roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3681811B2 (en) |
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| WO2002010617A1 (en) * | 2000-07-27 | 2002-02-07 | Koyo Seiko Co., Ltd. | Pulley unit |
| JP2002098154A (en) * | 2000-07-31 | 2002-04-05 | Skf Gmbh | Cylindrical roller bearing |
| JP2008240728A (en) * | 2007-03-23 | 2008-10-09 | Pfeiffer Vacuum Gmbh | Vacuum pump |
| JP2009133483A (en) * | 2007-11-07 | 2009-06-18 | Nsk Ltd | Ball bearing |
| WO2009154106A1 (en) * | 2008-06-17 | 2009-12-23 | 株式会社ジェイテクト | Cylindrical roller bearing |
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| JP2013210002A (en) * | 2012-03-30 | 2013-10-10 | Nsk Ltd | Rolling bearing device with lubricant supply mechanism |
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| EP1217259A1 (en) * | 2000-07-27 | 2002-06-26 | Koyo Seiko Co., Ltd. | Pulley unit |
| US7056247B2 (en) | 2000-07-27 | 2006-06-06 | Koyo Seiko Co., Ltd. | Pulley unit |
| EP1217259A4 (en) * | 2000-07-27 | 2006-08-30 | Jtekt Corp | Pulley unit |
| WO2002010617A1 (en) * | 2000-07-27 | 2002-02-07 | Koyo Seiko Co., Ltd. | Pulley unit |
| JP2002098154A (en) * | 2000-07-31 | 2002-04-05 | Skf Gmbh | Cylindrical roller bearing |
| JP2008240728A (en) * | 2007-03-23 | 2008-10-09 | Pfeiffer Vacuum Gmbh | Vacuum pump |
| JP2013029203A (en) * | 2007-11-07 | 2013-02-07 | Nsk Ltd | Ball bearing |
| JP2009133483A (en) * | 2007-11-07 | 2009-06-18 | Nsk Ltd | Ball bearing |
| US8616776B2 (en) | 2008-06-17 | 2013-12-31 | Jtekt Corporation | Cylindrical roller bearing |
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| CN102007311A (en) * | 2008-06-17 | 2011-04-06 | 株式会社捷太格特 | Cylindrical roller bearing |
| US9022661B2 (en) | 2008-06-17 | 2015-05-05 | Jtekt Corporation | Cylindrical roller bearing |
| WO2009154106A1 (en) * | 2008-06-17 | 2009-12-23 | 株式会社ジェイテクト | Cylindrical roller bearing |
| JP2010025254A (en) * | 2008-07-22 | 2010-02-04 | Jtekt Corp | Rolling bearing |
| JP2010090912A (en) * | 2008-10-03 | 2010-04-22 | Jtekt Corp | Cylindrical roller bearing |
| JP2010164081A (en) * | 2009-01-13 | 2010-07-29 | Nsk Ltd | Cage and roller, and radial needle bearing |
| JP2012107688A (en) * | 2010-11-17 | 2012-06-07 | Jtekt Corp | Rolling bearing |
| CN102562791A (en) * | 2012-01-06 | 2012-07-11 | 洛阳新强联回转支承股份有限公司 | Low-friction three-row cylinder roller bearing |
| JP2013210002A (en) * | 2012-03-30 | 2013-10-10 | Nsk Ltd | Rolling bearing device with lubricant supply mechanism |
| WO2014009050A1 (en) * | 2012-07-09 | 2014-01-16 | Schaeffler Technologies AG & Co. KG | Rolling bearing for a turbocharger |
| US9523389B2 (en) | 2012-07-09 | 2016-12-20 | Schaeffler Technologies AG & Co. KG | Rolling bearing for a turbocharger |
| JP2013139879A (en) * | 2013-03-11 | 2013-07-18 | Jtekt Corp | Cylindrical roller bearing |
| DE102019112095A1 (en) * | 2019-05-09 | 2020-11-12 | Schaeffler Technologies AG & Co. KG | Rolling bearing cage |
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|---|---|
| JP3681811B2 (en) | 2005-08-10 |
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