WO2016013571A1 - 転がり軸受 - Google Patents
転がり軸受 Download PDFInfo
- Publication number
- WO2016013571A1 WO2016013571A1 PCT/JP2015/070816 JP2015070816W WO2016013571A1 WO 2016013571 A1 WO2016013571 A1 WO 2016013571A1 JP 2015070816 W JP2015070816 W JP 2015070816W WO 2016013571 A1 WO2016013571 A1 WO 2016013571A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inner diameter
- cage
- base
- pedestal
- rolling
- Prior art date
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 51
- 210000000078 claw Anatomy 0.000 claims abstract description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 45
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 description 18
- 230000002093 peripheral effect Effects 0.000 description 15
- 239000004519 grease Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000013585 weight reducing agent Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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
- F16C33/38—Ball cages
- F16C33/41—Ball cages comb-shaped
- F16C33/412—Massive or moulded comb cages, e.g. snap ball cages
- F16C33/414—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages
- F16C33/416—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages made from plastic, e.g. injection moulded comb 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
- F16C19/02—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
-
- 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
- F16C33/41—Ball cages comb-shaped
-
- 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
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6607—Retaining the grease in or near the bearing
- F16C33/6614—Retaining the grease in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
Definitions
- the present invention relates to a rolling bearing, and more particularly to a rolling bearing having an inner ring, an outer ring, a plurality of rolling elements, and a cage for holding the rolling elements between the inner ring and the outer ring.
- a cage which holds rolling elements (balls and rollers) rolling between the raceway surfaces of the inner and outer rings of the bearing.
- various holders such as a holder having a holding hole radially opened in an annular body, a crown resin holder having an axially opened pocket as described in Patent Documents 1 and 2, and the like The vessel is known.
- the claws As a problem when the claws are deformed, the claws come into contact with the raceway surface of the outer ring to cause friction, leading to a loss of rotational torque.
- the inner surface of the pocket is a curved surface (and / or a spherical surface) along the rolling element, the inner surface (more precisely, the inner side edge of the inner surface) contacts the rolling element to increase the rotational torque. There is also a problem.
- Patent Document 1 discloses a cage made of a synthetic resin of a rolling bearing. According to Patent Document 1, a through hole extending from the bottom surface of an annular base (annular body) to an axial portion forming a pocket with a claw portion is provided so as to withstand weight reduction and withstand high speed rotation of the bearing. It is done. It is described that since the weight of the cage can be reduced by this, it is possible to suppress the deformation of the claws at the time of high speed rotation.
- Patent Document 2 discloses a cage for a ball bearing, in which a flange is formed on an outer peripheral edge of an annular body located on the bottom side of a pocket. Patent Document 2 describes that since the cross-sectional area of the bottom wall portion of the pocket is increased and the torsional stiffness is increased, deformation due to centrifugal force can be suppressed.
- the thickness of the annular base is larger than that of the axial portion, and as a result, the weight of the cage is increased.
- the increase in weight of the cage is also one cause of increase in rotational torque at high speed rotation.
- the rigidity of the cage itself decreases and the durability of the bearing decreases. Connect.
- a lubricant such as grease enclosed in the bearing moves to the inside of the outer ring by centrifugal force.
- the lubricant is more easily moved from the bottom surface side of the annular body of the cage toward the outer diameter side of the axial portion, and hence to the outside of the outer ring. Therefore, there is a problem that the amount of lubricant to be held in the core pocket on the inner race's orbit is reduced, and seizure and the like are easily generated.
- one object of the present invention is to provide a rolling bearing which can reduce the weight of the cage and at the same time secure the rigidity of the cage itself, and can suppress an increase in rotational torque even during ultra-high speed rotation. .
- Another object of the present invention is to provide a rolling bearing which is provided with a cage capable of stocking (storing) lubricant even during ultra-high-speed rotation, thereby preventing breakage of lubricant in use. is there.
- an inner ring, an outer ring, a plurality of rolling elements, and a cage for holding the rolling elements between the inner ring and the outer ring are provided.
- the pedestal portion has the inner diameter surface whose inner diameter is larger than the inner diameter surface of the base, and the pitch circle diameter of the rolling element is larger than the inner diameter of the inner diameter surface of the pedestal portion
- the annular base has a bottom surface on the axially opposite side of the pedestal, and the cage has a hole penetrating between the bottom and the inner diameter surface of the pedestal.
- the cage may have a blind hole extending from the bottom to the inside of the pedestal.
- the base portion of the cage has an inner diameter surface whose inner diameter is larger than the inner diameter surface of the base, ie, the radial thickness of the base is larger than the radial thickness of the base portion
- the rigidity is secured, and the pedestal portion is prevented from being deformed so as to open radially outward due to the centrifugal force even when the dmN value is an ultra high speed rotation of 500,000 or more.
- a large gap is formed between the inner diameter side edge of the pocket and the ball, so that contact or contact stress between the pocket and the ball is suppressed even if excessive centrifugal force is generated in the cage, and rotation torque is consequently achieved.
- the pitch circle diameter of the rolling element is larger than the inner diameter of the inner diameter surface of the pedestal portion, the inner surface (curved surface) of the pedestal portion forming the pocket even during ultra high speed rotation with dmN value of 500,000 or more.
- the rims of the rolling elements e.g. balls
- the hole provided in the cage so as to penetrate between the bottom surface and the inner diameter surface of the pedestal contributes to weight reduction of the cage and hence the bearing.
- such a hole functions as a grease holder (a space where a fixed amount of lubricant can be stored), thereby preventing the diffusion of the lubricant and keeping a constant amount even at ultra high speed rotation with a dmN value of 500,000 or more.
- the lubricant can be retained and stably supplied to the pocket. Therefore, it becomes possible not only to prevent running out of the lubricant during use, but also to make it possible to reduce the stirring resistance due to the excess of the lubricant, which also contributes to suppressing the increase of the rotational torque.
- dmN value is a well-known index to those skilled in the art, and can be obtained by integrating the pitch circle diameter dm (mm) of the rolling element and the rotational speed N (rpm).
- weight reduction can be achieved without thinning the outer diameter of each portion of the cage, and at the same time the rigidity of the cage itself It can be secured.
- FIG. 1 is an overall perspective view of a retainer with through holes in accordance with an embodiment of the present invention. It is a top view of the holder
- FIG. 5 is an enlarged cross-sectional view of the cage along line AA of FIG. 4;
- FIG. 7 is an overall perspective view of a retainer with a blind hole according to another embodiment of the present invention. It is a top view of the holder
- FIG. 8 is an enlarged cross-sectional view of the cage, taken along line B-B in FIG. 7; It is a model top view which shows the positional relationship of the holder
- FIG. 1 is an enlarged sectional view showing an essential part of a rolling bearing according to a first embodiment of the present invention.
- a rolling bearing 100 (in this case, a ball bearing) shown in FIG. 1 rolls between an inner ring 110 having a raceway surface 112 on the outer peripheral side, an outer ring 120 having a raceway surface 122 on the inner peripheral side, and a raceway surface of inner and outer rings. And a plurality of rolling elements (balls in this case) 130.
- a cage 150 for maintaining a circumferential distance between the plurality of balls 130 is provided between the inner ring 110 and the outer ring 120.
- an oil seal 140 is attached to each side of the ball bearing 100 between the inner ring 110 and the outer ring 120 so as to prevent grease from leaking.
- An outer diameter side end portion 140 a of the oil seal 140 is fitted in an oil seal attachment groove 120 a formed on the inner periphery of the outer ring 120.
- a lip 140 b is formed on the inner peripheral end of the oil seal 140, and this lip is in contact with a seal groove 110 a formed on the outer periphery of the inner ring 110.
- FIGS. 3 to 5 are diagrams for explaining the holder 150 shown in FIG.
- the cage 150 has an annular base 160 centered on the axis of the ball bearing 100, a plurality of (in this case, nine) pedestals 170 axially extending from the base 160, and tips of the pedestals 170. It is a resin integrally molded component having claws 180 extending from both sides in the circumferential direction.
- a pocket 200 is formed having an inner surface 171 between adjacent pedestals 170, 170 and between opposing claws 180, 180 of adjacent pedestals, thereby receiving ball 130.
- the annular base 160 is disposed adjacent to one oil seal 140, and the pedestal 170 and the pawl 180 are disposed to extend toward the other oil seal 140.
- the inner surface 171 of the pocket 200 is more specifically a curved surface or an inner spherical surface along the outer surface of the ball 130, whereby the ball 130 is held so as to be able to slide and rotate smoothly.
- an inner diameter surface 170a is formed on the inner peripheral side of the pedestal portion 170, and the inner diameter Ds thereof is larger than the inner diameter Db of the innermost diameter surface 160a located on the innermost side of the base 160.
- the shape of the pedestal portion 170 from which the inner diameter surface 170a is removed can be formed by a mold for injection molding, or can be formed by cutting after the formation.
- a through hole 172 is formed in the holder 150 so as to extend from the bottom surface 160 b of the base 160 opposite to the pedestal portion 170 to the inner diameter surface 170 a of the pedestal portion 170.
- the through hole portion 172 has a bottom surface opening 172a opened to the bottom surface 160b of the base portion 160 and a side surface opening 172b opened to the inner diameter surface 170a of the pedestal portion 170, but a partition 172c is formed on the outer peripheral side of the pedestal portion 170. Therefore, it does not open on the outer peripheral side of the pedestal portion 170.
- the weight of the pedestal 170 can be reduced, and the centrifugal force generated by the rotation of the cage can be reduced, and the deformation of the pedestal 170 and the claw 180 can be suppressed.
- the pedestal portion 170 maintains rigidity so that the claw portion 180 does not fall in the outer peripheral direction by the partition wall 172c even if the through hole portion 172 is formed, deformation of the claw portion 180 is also suppressed.
- lubricant such as grease enclosed in the bearing is difficult to move to the inside of the outer ring due to centrifugal force, so the lubricant is held in the pocket and seizing And the like can be suppressed.
- FIG. 9 shows the positional relationship between the cage 150 and the balls 130 in the rolling bearing 100 shown in FIG.
- the pitch circle diameter PCD of the ball 130 is configured to be larger than the inner diameter Ds of the inner diameter surface 170a of the pedestal portion 170.
- the inner peripheral edge C of the pocket 200 moved radially outward by the centrifugal force F at the time of high speed rotation can be configured to contact the ball 130, so that the pedestal portion 170 and the claw portion 180 The above radially outward spread is prevented from causing the image sticking.
- FIG. 2 is an enlarged sectional view showing an essential part of a rolling bearing according to a second embodiment of the present invention.
- the basic configuration is similar to the bearing 100 shown in FIG. 1, but only the cage 1150 differs from the cage 150 shown in FIG.
- the cage 1150 will be described in more detail with reference to FIGS.
- the cage 1150 also has an annular base 1160 centered on the axis of the ball bearing 100, a plurality of (in this case, nine) pedestals 1170 axially extending from the base 1160, and the tips of the pedestals 1170 And the claw portions 1180 extending from both sides in the circumferential direction.
- a pocket 1200 is formed having an inner surface 1171 between adjacent pedestals 1170, 1170, and between opposing claws 1180, 1180 of adjacent pedestals, thereby receiving ball 130.
- the annular base 1160 is disposed adjacent to one oil seal 140, and the pedestal 1170 and the pawl 1180 are disposed to extend toward the other oil seal 140.
- the inner surface 1171 of the pocket 1200 is more particularly a curved surface or an inner spherical surface along the outer surface of the ball 130, whereby the ball 130 is held so as to be able to slide and rotate smoothly.
- an inner diameter surface 1170 a is formed on the inner peripheral side of the pedestal portion 1170, and the inner diameter Ds thereof is larger than the inner diameter Db of the inner diameter surface 1160 a located on the innermost side of the base 1160.
- the cage 1150 is further configured such that the outer diameter Dso of the outer diameter surface 1170 c on the outer peripheral side of the pedestal portion 1170 is smaller than the outer diameter Dbo of the outer diameter surface 1160 c positioned outermost of the base 1160.
- the portion from the middle of the outer peripheral portion to the tip of the claw portion 1180 is deleted.
- the shape in which the inner diameter surface 1170a and the outer diameter surface 1170c of the pedestal portion 1170 are deleted can be formed by a mold for injection molding, or may be formed by cutting after formation. it can.
- an inclined surface or an inclined curved surface 1170 b is formed at the root portion (base 1160 side) of the inner periphery of the pedestal 1170, and the inner diameter surface 1170 a of the pedestal 1170 is the inner diameter of the basal 1160. It is connected so that it may become the same diameter gradually to the surface 1160a. With this configuration, the rigidity of the pedestal portion 1170 can be further enhanced, and deformation due to centrifugal force can be suppressed.
- the claw portion 1180 has the same thickness (radial direction thickness) from the root portion to the tip. This is because the deformation of the claws 1180 is suppressed by the balls 130, and therefore it is not necessary to make them tapered.
- the present invention is not limited to this, and in particular, the outer diameter side of the claw portion 1180 may be chamfered (tapered). Although there is no concern of coming into contact with the raceway surface 122 of the outer ring 120, it is possible to obtain an effect of suppressing deformation by weight reduction.
- a blind hole 1172 having an opening 1172 a is formed on the bottom surface 1160 b of the base 1160.
- the pedestal portion 1170 can be reduced in weight to reduce the centrifugal force, and deformation of the pedestal portion 1170 and the claw portion 1180 can be suppressed. Since the wall portion is provided on both the radial side, the rigidity is maintained and the deformation of the claw portion 1180 is suppressed.
Abstract
Description
なお、上述したdmN値は当業者には周知の指標であり、転動体のピッチ円直径dm(mm)と回転数N(rpm)を積算することによって求められる。
110 内輪
110a シール溝
112 軌道面
120 外輪
120a オイルシール装着溝
122 軌道面
130 転動体、ボール
150 保持器
140 オイルシール
140a 外径側端部
140b リップ
160 円環状の基部
160a 内径面
160b 底面
170 台座部
170a 内径面
171 内面
172 貫通孔部
172a 底面開口
172b 側面開口
172c 隔壁
180 爪部
200 ポケット
1150 保持器
1160 円環状の基部
1160a 内径面
1160b 底面
1170 台座部
1170a 内径面
1170b 傾斜面、傾斜曲面
1171 内面
1172 止まり孔
1172a 開口
1180 爪部
1200 ポケット
Claims (3)
- 内輪と、外輪と、複数の転動体と、前記内輪および前記外輪の間で前記転動体を保持するための保持器とを有する転がり軸受であって、
前記保持器が、環状の基部と、前記基部から軸方向に延びる複数の台座部であって、前記基部の円周方向に沿って配列された複数の台座部と、前記各台座部から軸方向にさらに延びるように前記台座部の円周方向の両側に設けられた2つの爪部と、前記複数の転動体を保持する複数のポケット部であって、前記各ポケット部が、隣接する前記台座部の間、および隣接する前記台座部の互いに向き合う前記爪部の間に形成される内面を含むポケット部とを有する転がり軸受において、
前記台座部が、前記基部の内径面より内径の大きい内径面を有し、また前記転動体のピッチ円直径が、前記台座部の前記内径面の内径よりも大きいことを特徴とする転がり軸受。 - 前記基部は、前記台座部と軸方向反対側に底面を有し、前記保持器が、前記底面と前記台座部の前記内径面との間で貫通する孔部をさらに有することを特徴とする請求項1に記載の転がり軸受。
- 前記基部は、前記台座部と軸方向反対側に底面を有し、前記保持器が、前記底面から前記台座部の内部まで延びる止まり孔をさらに有することを特徴とする請求項1に記載の転がり軸受。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18178721.9A EP3396188A1 (en) | 2014-07-23 | 2015-07-22 | Rolling bearing |
JP2016535948A JPWO2016013571A1 (ja) | 2014-07-23 | 2015-07-22 | 転がり軸受 |
EP15824122.4A EP3173641A4 (en) | 2014-07-23 | 2015-07-22 | Rolling bearing |
CN201580040164.XA CN106536952A (zh) | 2014-07-23 | 2015-07-22 | 滚动轴承 |
US15/326,924 US20170211617A1 (en) | 2014-07-23 | 2015-07-22 | Rolling bearing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014150039 | 2014-07-23 | ||
JP2014-150039 | 2014-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016013571A1 true WO2016013571A1 (ja) | 2016-01-28 |
Family
ID=55163095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/070816 WO2016013571A1 (ja) | 2014-07-23 | 2015-07-22 | 転がり軸受 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170211617A1 (ja) |
EP (2) | EP3173641A4 (ja) |
JP (1) | JPWO2016013571A1 (ja) |
CN (1) | CN106536952A (ja) |
WO (1) | WO2016013571A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH041726U (ja) * | 1990-04-20 | 1992-01-08 | ||
JP2002349579A (ja) * | 2001-05-22 | 2002-12-04 | Nsk Ltd | 玉軸受 |
JP2007010008A (ja) * | 2005-06-29 | 2007-01-18 | Nsk Ltd | 密封ころがり軸受 |
WO2014029674A1 (fr) * | 2012-08-22 | 2014-02-27 | Aktiebolaget Skf | Cage pour palier à roulement, palier à roulement et direction électrique de véhicule automobile |
JP2014040916A (ja) * | 2012-08-22 | 2014-03-06 | Ab Skf | 転がり軸受用ケージ、転がり軸受及び自動車用電気式パワーステアリング |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH084758A (ja) * | 1994-06-20 | 1996-01-09 | Koyo Seiko Co Ltd | 玉軸受 |
JP2004346973A (ja) * | 2003-05-20 | 2004-12-09 | Ntn Corp | 玉軸受用の合成樹脂製保持器 |
FR2900996B1 (fr) | 2006-05-12 | 2008-08-08 | Skf Ab | Cage pour roulement a billes |
JP4969548B2 (ja) | 2008-10-14 | 2012-07-04 | Ntn株式会社 | 玉軸受 |
EP3309969B1 (en) * | 2011-06-24 | 2023-04-19 | Sun Patent Trust | Image coding method and apparatus |
-
2015
- 2015-07-22 US US15/326,924 patent/US20170211617A1/en not_active Abandoned
- 2015-07-22 WO PCT/JP2015/070816 patent/WO2016013571A1/ja active Application Filing
- 2015-07-22 EP EP15824122.4A patent/EP3173641A4/en not_active Withdrawn
- 2015-07-22 CN CN201580040164.XA patent/CN106536952A/zh active Pending
- 2015-07-22 EP EP18178721.9A patent/EP3396188A1/en not_active Withdrawn
- 2015-07-22 JP JP2016535948A patent/JPWO2016013571A1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH041726U (ja) * | 1990-04-20 | 1992-01-08 | ||
JP2002349579A (ja) * | 2001-05-22 | 2002-12-04 | Nsk Ltd | 玉軸受 |
JP2007010008A (ja) * | 2005-06-29 | 2007-01-18 | Nsk Ltd | 密封ころがり軸受 |
WO2014029674A1 (fr) * | 2012-08-22 | 2014-02-27 | Aktiebolaget Skf | Cage pour palier à roulement, palier à roulement et direction électrique de véhicule automobile |
JP2014040916A (ja) * | 2012-08-22 | 2014-03-06 | Ab Skf | 転がり軸受用ケージ、転がり軸受及び自動車用電気式パワーステアリング |
Non-Patent Citations (1)
Title |
---|
See also references of EP3173641A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP3173641A1 (en) | 2017-05-31 |
EP3173641A4 (en) | 2018-01-10 |
JPWO2016013571A1 (ja) | 2017-04-27 |
EP3396188A1 (en) | 2018-10-31 |
US20170211617A1 (en) | 2017-07-27 |
CN106536952A (zh) | 2017-03-22 |
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