JP2009185978A - Retainer for tapered roller bearings and tapered roller bearing - Google Patents
Retainer for tapered roller bearings and tapered roller bearing Download PDFInfo
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- JP2009185978A JP2009185978A JP2008028967A JP2008028967A JP2009185978A JP 2009185978 A JP2009185978 A JP 2009185978A JP 2008028967 A JP2008028967 A JP 2008028967A JP 2008028967 A JP2008028967 A JP 2008028967A JP 2009185978 A JP2009185978 A JP 2009185978A
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- side annular
- tapered roller
- roller bearing
- diameter
- retainer
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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
- 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
- F16C19/36—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 a single row of rollers
- F16C19/364—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 a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
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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
- 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
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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
- 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
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
- F16C33/6674—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to the amount supplied, e.g. gaps to restrict flow of the liquid
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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
- 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
- F16C33/6685—Details of collecting or draining, e.g. returning the liquid to a sump
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
本発明は、例えば、鉄道車両、鉄鋼機械、工作機械、建設機械等の一般産業機械や、自動車のトランスミッション等の回転支持部に使用される円すいころ軸受用保持器及び円すいころ軸受に関する。 The present invention relates to a tapered roller bearing retainer and a tapered roller bearing used for a general industrial machine such as a railway vehicle, a steel machine, a machine tool, and a construction machine, and a rotation support part of an automobile transmission or the like.
円すいころ軸受は、コンパクトで、大きなラジアル荷重及びアキシャル荷重を支持することができ、しかも、高速回転で使用することができるため、広く使用されている。 Tapered roller bearings are widely used because they are compact, can support large radial loads and axial loads, and can be used at high speeds.
従来の円すいころ軸受としては、例えば、図8に示す円すいころ軸受50が知られている。この円すいころ軸受50は、内周面に外輪軌道面51aを有する外輪51と、外周面に内輪軌道面52aを有する内輪52と、外輪軌道面51aと内輪軌道面52aとの間に転動可能に配設される複数の円すいころ53と、円すいころ53を円周方向に等間隔に保持する保持器54と、を備える。
As a conventional tapered roller bearing, for example, a tapered roller bearing 50 shown in FIG. 8 is known. The tapered roller bearing 50 can roll between an
保持器54は、図9に示すように、大径側円環部55と、大径側円環部55と同軸配置される小径側円環部56と、大径側円環部55と小径側円環部56とを連結すべく、円周方向に略等間隔で複数配置される柱部57と、円周方向に互いに隣り合う柱部57の間に形成され、円すいころ53を転動可能に保持するポケット部58と、を有する。
As shown in FIG. 9, the
ところで、円すいころ軸受50では、回転トルクの発生要因として、円すいころ53と内輪52との間の摩擦抵抗の他に、図8の矢印に示すように、内輪52の小径側端部から流入して大径側端部から排出される潤滑油の軸受内での攪拌抵抗があり、この回転トルクが大きいと、エネルギー節約の観点から好ましくない。
Incidentally, in the tapered roller bearing 50, in addition to the frictional resistance between the
このため、軸受の回転トルクの低減を目的として、保持器54の小径側端部の内輪52側への折り曲げ部と内輪52との間隙を調整して、軸受内への潤滑油の流入量を減らし、これにより、軸受内での潤滑油の攪拌抵抗を低減する技術が提案されている(例えば、特許文献1参照)。
For this reason, for the purpose of reducing the rotational torque of the bearing, the gap between the
また、同様に、軸受の回転トルクの低減を目的として、保持器54の小径側端部の内輪52側への折り曲げ部と内輪52との間隙、及び保持器54の大径側端部の内輪52側への折り曲げ部と内輪52との間隙を調整して、軸受内への潤滑油の流入量を最小限に抑える技術が提案されている(例えば、特許文献2参照)。
Similarly, for the purpose of reducing the rotational torque of the bearing, the gap between the bent portion of the
しかしながら、上記特許文献1及び特許文献2に記載の円すいころ軸受では、保持器54の内輪52側への折り曲げ部と内輪52との間隙の寸法調整や内輪52側の加工が必要になり、また、保持器54の基本断面形状を変更しなければならないため、製造コストが増加する可能性があった。
However, in the tapered roller bearings described in Patent Document 1 and Patent Document 2, it is necessary to adjust the size of the gap between the bent portion of the
本発明は、このような不都合を解消するためになされたものであり、その目的は、軸受内での潤滑油の攪拌抵抗を低減することができ、軸受の回転トルクを低減することができる円すいころ軸受用保持器及び円すいころ軸受を提供することにある。 The present invention has been made to eliminate such inconveniences, and its purpose is to reduce the stirring resistance of the lubricating oil in the bearing, and to reduce the rotational torque of the bearing. The object is to provide a roller bearing cage and a tapered roller bearing.
本発明の上記目的は、下記の構成により達成される。
(1) 大径側円環部と、大径側円環部と同軸配置される小径側円環部と、大径側円環部と小径側円環部とを連結すべく、円周方向に略等間隔で複数配置される柱部と、円周方向に互いに隣り合う柱部の間に形成され、円すいころを転動可能に保持するポケット部と、を有する円すいころ軸受用保持器であって、大径側円環部の軸方向端面に潤滑油逃げ用の貫通穴が設けられることを特徴とする円すいころ軸受用保持器。
(2) 内周面に外輪軌道面を有する外輪と、外周面に内輪軌道面を有する内輪と、外輪軌道面と内輪軌道面との間に転動可能に配設される複数の円すいころと、円すいころを円周方向に等間隔に保持する保持器と、を備え、保持器は、大径側円環部と、大径側円環部と同軸配置される小径側円環部と、大径側円環部と小径側円環部とを連結すべく、円周方向に略等間隔で複数配置される柱部と、円周方向に互いに隣り合う柱部の間に形成され、円すいころを転動可能に保持するポケット部と、を有する円すいころ軸受であって、保持部の大径側円環部の軸方向端面に潤滑油逃げ用の貫通穴が設けられることを特徴とする円すいころ軸受。
The above object of the present invention is achieved by the following configurations.
(1) In order to connect the large-diameter side annular portion, the small-diameter-side annular portion coaxially arranged with the large-diameter-side annular portion, and the large-diameter-side annular portion and the small-diameter-side annular portion. A tapered roller bearing retainer having a plurality of column portions arranged at substantially equal intervals on each other and a pocket portion formed between the column portions adjacent to each other in the circumferential direction so that the tapered rollers can be rolled. A tapered roller bearing retainer, wherein a through hole for lubricating oil escape is provided in an axial end surface of the large-diameter side annular portion.
(2) An outer ring having an outer ring raceway surface on the inner peripheral surface, an inner ring having an inner ring raceway surface on the outer peripheral surface, and a plurality of tapered rollers arranged to be rollable between the outer ring raceway surface and the inner ring raceway surface; A retainer that holds the tapered rollers at equal intervals in the circumferential direction, and the retainer includes a large-diameter-side annular portion, and a small-diameter-side annular portion that is arranged coaxially with the large-diameter-side annular portion, To connect the large-diameter side annular part and the small-diameter side annular part, a plurality of pillar parts arranged at substantially equal intervals in the circumferential direction and pillar parts adjacent to each other in the circumferential direction are formed. A tapered roller bearing having a pocket portion for holding the roller in a rollable manner, wherein a through hole for lubricating oil escape is provided on an axial end surface of the large-diameter side annular portion of the holding portion. Tapered roller bearings.
本発明の円すいころ軸受用保持器及び円すいころ軸受によれば、保持部の大径側円環部の軸方向端面に潤滑油逃げ用の貫通穴が設けられるため、軸受内に流入した潤滑油を速やかに排出することができる。これにより、軸受内での潤滑油の攪拌抵抗を低減することができ、軸受の回転トルクを低減することができる。 According to the tapered roller bearing retainer and the tapered roller bearing of the present invention, since the through-hole for lubricating oil escape is provided in the axial end surface of the large-diameter side annular portion of the holding portion, the lubricating oil flowing into the bearing Can be discharged promptly. Thereby, the stirring resistance of the lubricating oil in the bearing can be reduced, and the rotational torque of the bearing can be reduced.
以下、本発明に係る円すいころ軸受用保持器及び円すいころ軸受の一実施形態について、図面を参照して詳細に説明する。
図1は本発明に係る円すいころ軸受用保持器及び円すいころ軸受の一実施形態を説明するための要部断面図、図2は図1に示す円すいころ軸受用保持器を説明するための斜視図、図3は図2のA部拡大図、図4は円すいころ軸受用保持器の第1変形例を説明するための要部拡大斜視図、図5は円すいころ軸受用保持器の第2変形例を説明するための要部拡大断面図、図6は円すいころ軸受用保持器の第3変形例を説明するための要部拡大断面図、図7は円すいころ軸受用保持器の第4変形例を説明するための要部拡大断面図である。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a tapered roller bearing retainer and a tapered roller bearing according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a main part for explaining an embodiment of a tapered roller bearing retainer and a tapered roller bearing according to the present invention, and FIG. 2 is a perspective view for explaining the tapered roller bearing retainer shown in FIG. FIG. 3, FIG. 3 is an enlarged view of a part A in FIG. 2, FIG. 4 is an enlarged perspective view of a main part for explaining a first modified example of the tapered roller bearing retainer, and FIG. 5 is a second view of the tapered roller bearing retainer. The principal part expanded sectional view for demonstrating a modification, FIG. 6 is a principal part expanded sectional view for demonstrating the 3rd modification of a tapered roller bearing retainer, FIG. 7 is 4th of a tapered roller bearing retainer. It is a principal part expanded sectional view for demonstrating a modification.
本実施形態の円すいころ軸受10は、図1に示すように、内周面に外輪軌道面11aを有する外輪11と、外周面に内輪軌道面12aを有する内輪12と、外輪軌道面11aと内輪軌道面12aとの間に転動可能に配設される複数の円すいころ13と、円すいころ13を円周方向に等間隔に保持する円すいころ軸受用保持器14と、を備える。
As shown in FIG. 1, the tapered roller bearing 10 of this embodiment includes an
円すいころ軸受用保持器14は、合成樹脂の射出成形で形成されており、図2に示すように、大径側円環部15と、大径側円環部15と同軸配置される小径側円環部16と、大径側円環部15と小径側円環部16とを連結すべく、円周方向に略等間隔で複数配置される柱部17と、円周方向に互いに隣り合う各柱部17の間に形成され、円すいころ13を転動可能に保持するポケット部18と、を備える。
The tapered roller bearing
そして、本実施形態では、図3に示すように、円すいころ軸受用保持器14の大径側円環部15の軸方向端面に潤滑油逃げ用の貫通穴19が形成される。この貫通穴19は、大径側円環部15を略軸方向に貫通するように形成される。これにより、図1の矢印に示すように、内輪12の小径側端部と保持器14の小径側円環部16との間からから流入した潤滑油が、外輪11及び内輪12の大径側端部と保持器14の大径側円環部15との間から排出されると共に、大径側円環部15の貫通穴19からも排出される。
In this embodiment, as shown in FIG. 3, a
また、貫通穴19は、本実施形態では円形であり、各ポケット部18に対して円周方向に互いに離間して2個ずつ配置される。また、貫通穴16の直径Dは、軸受回転時に保持器14に作用する荷重に耐える強度を確保できる範囲で、例えば、大径側円環部15の径方向の板厚Tの50%以下が好ましい。
In addition, the through
以上説明したように、本実施形態の円すいころ軸受用保持器14及び円すいころ軸受10によれば、保持部14の大径側円環部15の軸方向端面に潤滑油逃げ用の貫通穴19が設けられるため、軸受10内に流入した潤滑油を速やかに排出することができる。これにより、軸受10内での潤滑油の攪拌抵抗を低減することができ、軸受10の回転トルクを低減することができる。
As described above, according to the tapered roller bearing
なお、本実施形態の円すいころ軸受用保持器14の第1変形例として、上記実施形態では、貫通穴19を柱部17から円周方向に離れた位置に形成したが、図4に示すように、貫通穴19を柱部17の近傍に形成するようにしてもよい。
As a first modification of the tapered roller bearing
また、本実施形態の円すいころ軸受用保持器14の第2変形例として、図5に示すように、貫通穴19を四角形状としてもよい。この場合、貫通穴19の円周方向長さL1は、軸受回転時に保持器14に作用する荷重に耐える強度を確保できる範囲で、例えば、ポケット部18の円周方向長さL2の50%以下が好ましい。
Further, as a second modification of the tapered roller bearing
また、本実施形態の円すいころ軸受用保持器14の第3変形例として、図6に示すように、貫通穴19を三角形状としてもよい。
As a third modification of the tapered roller bearing
また、本実施形態の円すいころ軸受用保持器14の第4変形例として、上記実施形態では、各ポケット部18に対して貫通穴19を設ける場合を例示したが、図7に示すように、貫通穴19が設けられるポケット部18と貫通穴19が設けられないポケット部18が円周方向に交互に配置されるようにしてもよい。なお、本変形例では、貫通穴19は、ポケット部18の円周方向中央部に1個配置されている。
Further, as a fourth modified example of the tapered roller bearing
なお、本発明は上記実施形態に例示したものに限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更可能である。
例えば、上記実施形態では、1個のポケット部18に対して貫通穴19を1個又は2個設ける場合を例示したが、これに限定されず、貫通穴19を3個以上設けるようにしてもよい。また、貫通穴19の形状も上記に限定されず任意である。
In addition, this invention is not limited to what was illustrated to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.
For example, in the above embodiment, the case where one or two through
10 円すいころ軸受
11 外輪
11a 外輪軌道面
12 内輪
12a 内輪軌道面
13 円すいころ
14 円すいころ軸受用保持器
15 大径側円環部
16 小径側円環部
17 柱部
18 ポケット部
19 貫通穴
DESCRIPTION OF
Claims (2)
前記大径側円環部の軸方向端面に潤滑油逃げ用の貫通穴が設けられることを特徴とする円すいころ軸受用保持器。 In order to connect the large diameter side annular part, the small diameter side annular part coaxially arranged with the large diameter side annular part, and the large diameter side annular part and the small diameter side annular part, the circumferential direction A tapered roller bearing retainer having a plurality of column portions arranged at substantially equal intervals on each other and a pocket portion formed between the column portions adjacent to each other in the circumferential direction so as to hold the tapered rollers in a rollable manner. Because
A tapered roller bearing retainer, wherein a through hole for lubricating oil escape is provided on an end surface in the axial direction of the large-diameter side annular portion.
前記保持器は、大径側円環部と、前記大径側円環部と同軸配置される小径側円環部と、前記大径側円環部と前記小径側円環部とを連結すべく、円周方向に略等間隔で複数配置される柱部と、円周方向に互いに隣り合う前記柱部の間に形成され、前記円すいころを転動可能に保持するポケット部と、を有する円すいころ軸受であって、
前記保持部の前記大径側円環部の軸方向端面に潤滑油逃げ用の貫通穴が設けられることを特徴とする円すいころ軸受。 An outer ring having an outer ring raceway surface on an inner peripheral surface, an inner ring having an inner ring raceway surface on an outer peripheral surface, and a plurality of tapered rollers arranged to be rollable between the outer ring raceway surface and the inner ring raceway surface; A retainer for holding the tapered rollers at equal intervals in the circumferential direction,
The cage connects the large-diameter side annular portion, the small-diameter-side annular portion coaxially arranged with the large-diameter-side annular portion, and the large-diameter-side annular portion and the small-diameter-side annular portion. Therefore, a plurality of pillar portions arranged at substantially equal intervals in the circumferential direction, and a pocket portion formed between the pillar portions adjacent to each other in the circumferential direction so as to hold the tapered rollers in a rollable manner. A tapered roller bearing,
A tapered roller bearing, wherein a through hole for escaping lubricating oil is provided on an end surface in the axial direction of the large-diameter side annular portion of the holding portion.
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JP2008028967A JP5292842B2 (en) | 2008-02-08 | 2008-02-08 | Tapered roller bearing cage and tapered roller bearing |
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JP2008028967A JP5292842B2 (en) | 2008-02-08 | 2008-02-08 | Tapered roller bearing cage and tapered roller bearing |
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JP5292842B2 JP5292842B2 (en) | 2013-09-18 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012033043A1 (en) * | 2010-09-09 | 2012-03-15 | Ntn株式会社 | Reduction device |
JP2012177400A (en) * | 2011-02-25 | 2012-09-13 | Ntn Corp | Reduction device |
CN114962445A (en) * | 2022-05-31 | 2022-08-30 | 无锡易通精密机械股份有限公司 | Wear-resistant tapered roller bearing |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11201149A (en) * | 1998-01-12 | 1999-07-27 | Koyo Seiko Co Ltd | Tapered roller bearing |
JP2003049843A (en) * | 2001-08-06 | 2003-02-21 | Nsk Ltd | Roller bearing |
JP2003287033A (en) * | 2002-03-28 | 2003-10-10 | Ntn Corp | Holder for roller bearing and roller bearing |
JP2006070926A (en) * | 2004-08-31 | 2006-03-16 | Nakanishi Metal Works Co Ltd | Retainer for tapered roller bearing |
JP2007211934A (en) * | 2006-02-10 | 2007-08-23 | Nsk Ltd | Cage for radial needle bearing |
JP2008020051A (en) * | 2006-07-14 | 2008-01-31 | Nsk Ltd | Retainer for rolling bearing and rolling bearing |
JP2008232295A (en) * | 2007-03-20 | 2008-10-02 | Ntn Corp | Tapered roller bearing |
-
2008
- 2008-02-08 JP JP2008028967A patent/JP5292842B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11201149A (en) * | 1998-01-12 | 1999-07-27 | Koyo Seiko Co Ltd | Tapered roller bearing |
JP2003049843A (en) * | 2001-08-06 | 2003-02-21 | Nsk Ltd | Roller bearing |
JP2003287033A (en) * | 2002-03-28 | 2003-10-10 | Ntn Corp | Holder for roller bearing and roller bearing |
JP2006070926A (en) * | 2004-08-31 | 2006-03-16 | Nakanishi Metal Works Co Ltd | Retainer for tapered roller bearing |
JP2007211934A (en) * | 2006-02-10 | 2007-08-23 | Nsk Ltd | Cage for radial needle bearing |
JP2008020051A (en) * | 2006-07-14 | 2008-01-31 | Nsk Ltd | Retainer for rolling bearing and rolling bearing |
JP2008232295A (en) * | 2007-03-20 | 2008-10-02 | Ntn Corp | Tapered roller bearing |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012033043A1 (en) * | 2010-09-09 | 2012-03-15 | Ntn株式会社 | Reduction device |
JP2012177400A (en) * | 2011-02-25 | 2012-09-13 | Ntn Corp | Reduction device |
CN114962445A (en) * | 2022-05-31 | 2022-08-30 | 无锡易通精密机械股份有限公司 | Wear-resistant tapered roller bearing |
CN114962445B (en) * | 2022-05-31 | 2024-01-30 | 无锡易通精密机械股份有限公司 | Wear-resistant tapered roller bearing |
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