JP2007064262A - 等速自在継手 - Google Patents
等速自在継手 Download PDFInfo
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- JP2007064262A JP2007064262A JP2005248181A JP2005248181A JP2007064262A JP 2007064262 A JP2007064262 A JP 2007064262A JP 2005248181 A JP2005248181 A JP 2005248181A JP 2005248181 A JP2005248181 A JP 2005248181A JP 2007064262 A JP2007064262 A JP 2007064262A
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- joint
- inner ring
- outer ring
- constant velocity
- velocity universal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/40—Making machine elements wheels; discs hubs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
- B21K1/765—Outer elements of coupling members
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
- F16C35/0635—Fixing them on the shaft the bore of the inner ring being of special non-cylindrical shape which co-operates with a complementary shape on the shaft, e.g. teeth, polygonal sections
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
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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
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22326—Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0038—Surface treatment
- F16D2250/0053—Hardening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
- Y10S464/904—Homokinetic coupling
- Y10S464/906—Torque transmitted via radially spaced balls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/714—Method of making universal joint shell
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
- Rolling Contact Bearings (AREA)
Abstract
【解決手段】 等速自在継手1は、継手外輪4がカップ部9の外底免9aから突出するステム部10を有し、このステム部10が車輪用軸受装置2のハブ27の貫通孔31に挿通される。継手外輪4は、ハブ27の外周に嵌合した軸受内輪28の端面に当接する内輪端面突き当て面9aaをカップ部9の外底面9aに有する。継手外輪4は鋼材の鍛造品であり、母材部分が標準組織である。継手外輪4は、外表層の一部が非標準組織の部分30とされ、前記非標準組織は、上部ベイナイト組織、下部ベイナイト組織、焼戻マルテンサイト組織のうちのいずれか、もしくはこれらの組織のうちの2種類以上の混合組織である。
【選択図】図1
Description
前記継手外輪が鋼材の鍛造品であり、この継手外輪は、母材部分が標準組織であって、前記外表層の一部が非標準組織の部分とされ、前記非標準組織が、上部ベイナイト組織、下部ベイナイト組織、焼戻マルテンサイト組織のうちのいずれか、もしくは少なくともこれらの組織のうちの2種類以上の混合組織であることを特徴とする。
非標準組織の部分の下限硬さは、母材よりも強度アップのために25HRCとする。上限硬さは、被削性確保のため40HRCとする。
使用材料は炭素鋼(C量0.45〜0.7%)であるが、S53Cの場合、標準部分の硬さは、85〜105HRBとなる。
図3(A)に示すように、継手外輪4の1個分の素材となる素材が準備され、この素材は、鍛造の工程として、複数の工程、ここでは鍛造1パス、鍛造2パス、鍛造3パスを経て、次第に継手外輪4の形状に近づけ、最終鍛造工程(鍛造3パス)で、継手外輪4のおおまかな形状となる鍛造仕上がりの素材Wを得る(同図(B)〜(D))。
冷媒の吹き付けは、噴出し孔を多数開けたリング状の冷却ジャケット(図示せず)を使用しても良いし、また継手外輪4となる素材Wを回転させるのであれば、1箇所のノズルから吹き付けるものであっても良い。
図5において、横軸は時間の経過を、縦軸は温度を示す。図中のA3 は、A3 変態点となる温度、A1 はA1 変態点となる温度である。Ms はマルテンサイト・スタート・ポイント(以下「Ms 点」と称す)であり、Mf はマルテンサイト・フィニッシュ・ポイント(以下「Mf 点」と称す)である。
素材となる鋼材は、例えばS53C等のC量が0.45〜0.75%の炭素鋼である。
強度が増加するため、肉厚増加による重量の増加を招くことが無く、高強度材料を使用や調質の追加による加工性の低下やコストの増加を招くことがない。
前記非標準組織を部分的な冷却等によって継手外輪4に部分的に設ける場合は、硬度アップが必要箇所のみであるため、被削性等の加工性の低下が最小限に抑えられる。
実施例の静捩り強度は、従来例に対し20%向上した。鍛造後硬さ及び高周波熱処理後硬さは、実施例の方が従来例より高くなっており、硬さアップの効果で静捩り強度が向上した。
2…車輪用軸受装置
3…継手内輪
4…継手外輪
5…トルク伝達部材
7,8…トラック溝
9…カップ部
9aa…内輪端面突き当て面
10…ステム部
10a…雄ねじ部
12…セレーション
21…内方部材
22…外方部材
27…ハブ
28…軸受内輪
30…非標準組織の部分
31…貫通孔
32…セレーション
33…ナット
Claims (2)
- 継手内輪と継手外輪との間に、これら内外輪間に回転を伝達するトルク伝達部材が設けられ、前記継手外輪がカップ部の外底面から突出するステム部を有し、前記ステム部が車輪用軸受装置のハブの貫通孔に挿通され、前記ハブの外周に嵌合した軸受内輪の端面に当接する内輪端面突き当て面を前記カップ部の外底面に有する等速自在継手において、
前記継手外輪が鋼材の鍛造品であり、この継手外輪部品は、母材部分が標準組織であって、外表層の一部が非標準組織の部分とされ、前記非標準組織が、上部ベイナイト組織、下部ベイナイト組織、焼戻マルテンサイト組織のうちのいずれか、もしくは少なくともこれらの組織のうちの2種類以上の混合組織であることを特徴とする等速自在継手。 - 継手内輪と継手外輪との間に、これら内外輪間に回転を伝達するトルク伝達部材が設けられ、前記継手外輪がカップ部の外底面から突出するステム部を有し、前記ステム部が車輪用軸受装置のハブの貫通孔に挿通され、前記ハブの外周に嵌合した軸受内輪の端面に当接する内輪端面突き当て面を前記カップ部の外底面に有する等速自在継手において、
前記継手外輪が鋼材の鍛造品であり、この継手外輪部品は、母材部分が標準組織であって、外表層の一部が非標準組織の部分とされ、前記非標準組織が、鍛造の最後に冷却して自己復熱させるかまたは復熱保持焼戻しをすることで得られた組織である等速自在継手。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005248181A JP4562620B2 (ja) | 2005-08-29 | 2005-08-29 | 等速自在継手およびその継手外輪の製造方法 |
EP06782556A EP1925837A4 (en) | 2005-08-29 | 2006-08-09 | HOMOCINETIC COUPLING |
US11/991,171 US7942750B2 (en) | 2005-08-29 | 2006-08-09 | Constant velocity joint |
PCT/JP2006/315740 WO2007026515A1 (ja) | 2005-08-29 | 2006-08-09 | 等速自在継手 |
CNA2006800314017A CN101253344A (zh) | 2005-08-29 | 2006-08-09 | 等速万向联轴器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005248181A JP4562620B2 (ja) | 2005-08-29 | 2005-08-29 | 等速自在継手およびその継手外輪の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007064262A true JP2007064262A (ja) | 2007-03-15 |
JP4562620B2 JP4562620B2 (ja) | 2010-10-13 |
Family
ID=37808617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005248181A Expired - Fee Related JP4562620B2 (ja) | 2005-08-29 | 2005-08-29 | 等速自在継手およびその継手外輪の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7942750B2 (ja) |
EP (1) | EP1925837A4 (ja) |
JP (1) | JP4562620B2 (ja) |
CN (1) | CN101253344A (ja) |
WO (1) | WO2007026515A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010025319A (ja) * | 2008-07-24 | 2010-02-04 | Ntn Corp | 等速自在継手の内側継手部材 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5183358B2 (ja) * | 2008-08-22 | 2013-04-17 | Ntn株式会社 | 車輪用軸受装置 |
CN103867589B (zh) * | 2012-12-12 | 2016-06-29 | 贵州航空发动机研究所 | 一种球笼式联轴器的润滑装置 |
JP6572530B2 (ja) | 2014-10-17 | 2019-09-11 | 株式会社ジェイテクト | 熱処理装置及び熱処理方法 |
JP6507559B2 (ja) * | 2014-10-17 | 2019-05-08 | 株式会社ジェイテクト | 軸受軌道輪及び転がり軸受 |
KR102391538B1 (ko) * | 2020-08-18 | 2022-04-27 | 서한산업(주) | 등속 조인트용 케이지의 제조방법 및 이에 의하여 제작되는 등속 조인트용 케이지 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63312949A (ja) * | 1987-06-15 | 1988-12-21 | Kobe Steel Ltd | 高靭性熱間鍛造用非調質鋼 |
JPH10330836A (ja) * | 1997-05-30 | 1998-12-15 | Toa Steel Co Ltd | 被削性及び疲労特性に優れた熱間鍛造部品の製造方法 |
JP2004076790A (ja) * | 2002-08-12 | 2004-03-11 | Ntn Corp | 等速自在継手及びこれを用いた車輪軸受装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1006539C2 (nl) | 1997-07-10 | 1999-01-12 | Skf Ind Trading & Dev | Werkwijze voor het uitvoeren van een warmtebehandeling op metalen ringen, en aldus verkregen lagerring. |
JP2000303118A (ja) * | 1999-04-15 | 2000-10-31 | Nkk Corp | 析出強化型ステンレス鋼の製造方法 |
JP2001080308A (ja) * | 1999-09-10 | 2001-03-27 | Ntn Corp | 車輪軸受装置 |
JP5319866B2 (ja) * | 2004-05-24 | 2013-10-16 | 株式会社小松製作所 | 転動部材およびその製造方法 |
JP2006181606A (ja) * | 2004-12-27 | 2006-07-13 | Toyota Motor Corp | コンロッドの製造方法及び製造装置 |
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2005
- 2005-08-29 JP JP2005248181A patent/JP4562620B2/ja not_active Expired - Fee Related
-
2006
- 2006-08-09 CN CNA2006800314017A patent/CN101253344A/zh active Pending
- 2006-08-09 WO PCT/JP2006/315740 patent/WO2007026515A1/ja active Application Filing
- 2006-08-09 EP EP06782556A patent/EP1925837A4/en not_active Withdrawn
- 2006-08-09 US US11/991,171 patent/US7942750B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63312949A (ja) * | 1987-06-15 | 1988-12-21 | Kobe Steel Ltd | 高靭性熱間鍛造用非調質鋼 |
JPH10330836A (ja) * | 1997-05-30 | 1998-12-15 | Toa Steel Co Ltd | 被削性及び疲労特性に優れた熱間鍛造部品の製造方法 |
JP2004076790A (ja) * | 2002-08-12 | 2004-03-11 | Ntn Corp | 等速自在継手及びこれを用いた車輪軸受装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010025319A (ja) * | 2008-07-24 | 2010-02-04 | Ntn Corp | 等速自在継手の内側継手部材 |
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CN101253344A (zh) | 2008-08-27 |
EP1925837A4 (en) | 2012-07-18 |
US7942750B2 (en) | 2011-05-17 |
EP1925837A1 (en) | 2008-05-28 |
JP4562620B2 (ja) | 2010-10-13 |
US20090137326A1 (en) | 2009-05-28 |
WO2007026515A1 (ja) | 2007-03-08 |
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