JP2005140269A - 円筒ころ軸受 - Google Patents
円筒ころ軸受 Download PDFInfo
- Publication number
- JP2005140269A JP2005140269A JP2003378487A JP2003378487A JP2005140269A JP 2005140269 A JP2005140269 A JP 2005140269A JP 2003378487 A JP2003378487 A JP 2003378487A JP 2003378487 A JP2003378487 A JP 2003378487A JP 2005140269 A JP2005140269 A JP 2005140269A
- Authority
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- Japan
- Prior art keywords
- cylindrical roller
- axial length
- cage
- cylindrical
- column
- 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
- 230000004323 axial length Effects 0.000 claims abstract description 71
- 238000005096 rolling process Methods 0.000 claims abstract description 48
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 230000005489 elastic deformation Effects 0.000 abstract description 26
- 230000002159 abnormal effect Effects 0.000 abstract description 16
- 230000000052 comparative effect Effects 0.000 description 13
- 230000003252 repetitive effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 238000005461 lubrication Methods 0.000 description 6
- 238000005315 distribution function Methods 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000013585 weight reducing agent 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
- F16C33/46—Cages for rollers or needles
- F16C33/49—Cages for rollers or needles comb-shaped
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
【解決手段】 環状部4aの一側面から複数の柱部4bが軸方向に突出して形成された保持器4において、環状部4aの軸方向長さTaを、円筒ころ3の軸方向長さTdの30〜40%に設定すると共に、柱部4bの軸方向長さTbを、円筒ころ3の軸方向長さTdの65〜75%に設定し、さらに円筒ころ3の転動面全域を、外輪2の軌道面2aと面取り部2bとの境界位置Xよりも軸方向内側に配設する。
【選択図】図1
Description
軸受品番:NN3020K
保持器の材質:樹脂
組み込み後のラジアル内部隙間:−5μm
円筒ころ:ころ径φ11mm、ころ長さ11mm、ころPCDφ126mm
潤滑条件:エア量30NL/min、潤滑量0.02ml/20min、潤滑油粘度VG32、ハウジング冷却有り
2 外輪
2a 外輪の軌道面
2b 外輪の面取り部
3 円筒ころ
4 保持器
4a 環状部
4a1 内側面
4b 柱部
4b1 円周方向側面
4b12 逃げ部
4b14 ころ案内部
Ta 保持器の環状部の軸方向長さ
Tb 保持器の柱部の軸方向長さ
Td 円筒ころの軸方向長さ
Claims (7)
- 内輪と、外輪と、内輪と外輪との間に転動自在に配された複数の円筒ころと、合成樹脂製の保持器とを備え、該保持器は、環状部と、該環状部の内側面から軸方向の一方に延びた複数の柱部と、円周方向に隣接する前記柱部の円周方向側面間に形成され、前記円筒ころを回転自在に保持する複数のポケットとを備えている円筒ころ軸受において、
前記保持器の環状部の軸方向長さを、前記円筒ころの軸方向長さの30〜40%に設定したことを特徴とする円筒ころ軸受。 - 前記保持器の柱部の軸方向長さを、前記円筒ころの軸方向長さの65〜75%に設定したことを特徴とする請求項1に記載の円筒ころ軸受。
- 前記内輪及び/又は外輪における前記円筒ころが転動する軌道面の軸方向外側に面取り部が形成されると共に、前記円筒ころの転動面全域が、前記軌道面と前記面取り部との境界位置よりも軸方向内側に配設されていることを特徴とする請求項1又は2に記載の円筒ころ軸受。
- 前記面取り部は、前記軌道面により構成される円筒面に対して10〜30°の傾斜角度をもって形成されていることを特徴とする請求項3に記載の円筒ころ軸受。
- 前記保持器の柱部の円周方向側面は、その基端側内周部に、前記円筒ころの転動面に沿う円弧面として形成され、前記柱部が回転時の遠心力によって外径側に弾性変形したときに、前記円筒ころの転動面を案内するころ案内部を有すると共に、その先端側内周部に、前記ころ案内部よりも前記柱部の円周方向中心側に退避し、前記柱部が回転時の遠心力によって外径側に弾性変形したときに、前記円筒ころの転動面と半径方向の接触圧を生じない逃げ部を有することを特徴とする請求項1〜4の何れかに記載の円筒ころ軸受。
- 前記逃げ部の軸方向長さを、前記円筒ころの軸方向長さの10%〜35%に設定したことを特徴とする請求項5に記載の円筒ころ軸受。
- 前記円筒ころが複数列で配列されていると共に、前記円筒ころの各列がそれぞれ前記保持器によって個別的に保持されていることを特徴とする請求項1〜6の何れかに記載の円筒ころ軸受。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003378487A JP4387162B2 (ja) | 2003-11-07 | 2003-11-07 | 円筒ころ軸受 |
DE102004046789.7A DE102004046789B4 (de) | 2003-09-30 | 2004-09-27 | Zylinderrollenlager |
US10/952,714 US7101088B2 (en) | 2003-09-30 | 2004-09-28 | Cylindrical roller bearing |
CNB2004100806245A CN100386536C (zh) | 2003-09-30 | 2004-09-29 | 圆柱滚子轴承 |
CN2007101628728A CN101187400B (zh) | 2003-09-30 | 2004-09-29 | 圆柱滚子轴承 |
CN2007101628709A CN101187399B (zh) | 2003-09-30 | 2004-09-29 | 圆柱滚子轴承 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003378487A JP4387162B2 (ja) | 2003-11-07 | 2003-11-07 | 円筒ころ軸受 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009184980A Division JP2009257593A (ja) | 2009-08-07 | 2009-08-07 | 円筒ころ軸受 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005140269A true JP2005140269A (ja) | 2005-06-02 |
JP4387162B2 JP4387162B2 (ja) | 2009-12-16 |
Family
ID=34688856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003378487A Expired - Lifetime JP4387162B2 (ja) | 2003-09-30 | 2003-11-07 | 円筒ころ軸受 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4387162B2 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008008370A (ja) * | 2006-06-28 | 2008-01-17 | Ntn Corp | 円筒ころ軸受用保持器 |
WO2010095647A1 (ja) | 2009-02-20 | 2010-08-26 | Ntn株式会社 | 保持器、転がり軸受、保持器の製造方法および射出成形用の型 |
JP2011069460A (ja) * | 2009-09-28 | 2011-04-07 | Ntn Corp | ころ軸受およびころ軸受用保持器 |
WO2011111729A1 (ja) | 2010-03-10 | 2011-09-15 | Ntn株式会社 | 保持器および転がり軸受 |
WO2013140948A1 (ja) * | 2012-03-23 | 2013-09-26 | Ntn株式会社 | ころ軸受の保持器およびころ軸受構造 |
JP2016165780A (ja) * | 2015-03-10 | 2016-09-15 | Ntn株式会社 | 主軸装置 |
-
2003
- 2003-11-07 JP JP2003378487A patent/JP4387162B2/ja not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008008370A (ja) * | 2006-06-28 | 2008-01-17 | Ntn Corp | 円筒ころ軸受用保持器 |
WO2010095647A1 (ja) | 2009-02-20 | 2010-08-26 | Ntn株式会社 | 保持器、転がり軸受、保持器の製造方法および射出成形用の型 |
US9192986B2 (en) | 2009-02-20 | 2015-11-24 | Ntn Corporation | Cage, rolling bearing, method for manufacturing cage, and injection mold |
JP2011069460A (ja) * | 2009-09-28 | 2011-04-07 | Ntn Corp | ころ軸受およびころ軸受用保持器 |
WO2011111729A1 (ja) | 2010-03-10 | 2011-09-15 | Ntn株式会社 | 保持器および転がり軸受 |
US9284982B2 (en) | 2010-03-10 | 2016-03-15 | Ntn Corporation | Cage and rolling bearing |
WO2013140948A1 (ja) * | 2012-03-23 | 2013-09-26 | Ntn株式会社 | ころ軸受の保持器およびころ軸受構造 |
JP2013199955A (ja) * | 2012-03-23 | 2013-10-03 | Ntn Corp | ころ軸受の保持器およびころ軸受構造 |
US9388857B2 (en) | 2012-03-23 | 2016-07-12 | Ntn Corporation | Cage of roller bearing and roller bearing structure |
JP2016165780A (ja) * | 2015-03-10 | 2016-09-15 | Ntn株式会社 | 主軸装置 |
WO2016143577A1 (ja) * | 2015-03-10 | 2016-09-15 | Ntn株式会社 | 主軸装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4387162B2 (ja) | 2009-12-16 |
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