JP2004332844A - Rolling bearing - Google Patents

Rolling bearing Download PDF

Info

Publication number
JP2004332844A
JP2004332844A JP2003130463A JP2003130463A JP2004332844A JP 2004332844 A JP2004332844 A JP 2004332844A JP 2003130463 A JP2003130463 A JP 2003130463A JP 2003130463 A JP2003130463 A JP 2003130463A JP 2004332844 A JP2004332844 A JP 2004332844A
Authority
JP
Japan
Prior art keywords
bearing
rolling bearing
cylindrical roller
angular ball
rolling
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.)
Pending
Application number
JP2003130463A
Other languages
Japanese (ja)
Inventor
Ikuo Taguchi
育男 田口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NSK Ltd filed Critical NSK Ltd
Priority to JP2003130463A priority Critical patent/JP2004332844A/en
Publication of JP2004332844A publication Critical patent/JP2004332844A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49Bearings with both balls and rollers
    • F16C19/492Bearings with both balls and rollers with two or more rows with angular contact

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rolling bearing having both of excellent radial load characteristic and excellent thrust load characteristic. <P>SOLUTION: This rolling bearing 5 is formed by combining angular ball bearing parts 52 and 52 and a cylindrical roller bearing part 51 on the same axis. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、各種の産業において高負荷で低トルクが要求される回転部材に好適な転がり軸受に関する。
【0002】
【従来の技術】
従来、複数の軸受を組み合わせた転がり軸受が提案されている。この転がり軸受は、内輪と外輪との間に中間輪を有する二重軸受の中間輪を、内輪に対し偏心させてあり、その中間輪の外側軌道と外輪軌道との間にころを有する。
【0003】
また、この転がり軸受は、ころをその端面を軸受の側面側に向けた複列の円筒ころとし、かつ、ころ中心軸が軸受中心軸に平行となるように配設したものである。更に、外輪は、間座を介して突き合わせた複列組合せに構成されている。
この転がり軸受は、小型でしかも高剛性,高精度を得るための予圧の調整が容易で、かつ組立て作業が容易である(例えば、特許文献1参照)。
【0004】
【特許文献1】
特開平2001−27232号公報
【0005】
【発明が解決しようとする課題】
しかしながら、従来の複数の軸受を組み合わせた転がり軸受は、ラジアル荷重特性とスラスト荷重特性との両方の特性を向上させることはできなかった。
そこで、本発明の目的は上記課題を解決することであり、ラジアル荷重特性およびスラスト荷重特性の両方に優れた転がり軸受を提供することである。
【0006】
【課題を解決するための手段】
上記課題を解決するため、本発明は次の手段を採用した。
本発明は、アンギュラ玉軸受と円筒ころ軸受とを同一軸線上に組み合わせたことを特徴とする。
ここで、アンギュラ玉軸受および円筒ころ軸受の数はそれぞれ任意であり、同数である必要はない。また、アンギュラ玉軸受および円筒ころ軸受のうちの少なくとも一方を複数用いる場合、アンギュラ玉軸受および円筒ころ軸受を交互に配置してもよく、アンギュラ玉軸受あるいは円筒ころ軸受を複数列連続するように配置してもよい。
【0007】
また、本発明の転がり軸受においては、アンギュラ玉軸受および円筒ころ軸受における外輪および内輪のうちの一方あるいは双方が一体成形されていてもよい。
【0008】
このように構成された転がり軸受においては、ラジアル荷重特性に優れた円筒ころ軸受と、スラスト荷重特性に優れたアンギュラ玉軸受とを組み合わせたので、優れたラジアル荷重特性およびスラスト荷重特性が得られる。
【0009】
また、本発明は、前記アンギュラ玉軸受が前記円筒ころ軸受を軸方向に挟む複列であることを特徴とする。
このように構成された転がり軸受においては、各アンギュラ玉軸受がスラスト荷重を負担するため、円筒ころ軸受がスラスト荷重を負担しないで済むことになる。
【0010】
【発明の実施の形態】
以下、本発明に係る転がり軸受の実施の形態について、図面を参照して詳細に説明する。
図1は、本発明に係る転がり軸受5を示す。この転がり軸受5は、円筒ころ軸受部分51と、この円筒ころ軸受部分51の両側に設けられた複列のアンギュラ玉軸受部分52,52とが組み合わせられている。
上記の円筒ころ軸受部分51と、アンギュラ玉軸受部分52,52は、同一軸線53で、かつ、それぞれ内輪51a,52aおよび共通の外輪54が同期回転する。
なお、図1中の符号51b,52bは保持器、51cはころ、52cは玉である。
【0011】
このように、本発明の転がり軸受5は、円筒ころ軸受部分51とアンギュラ玉軸受部分52,52とを組み合わせたので、ラジアル荷重は円筒ころ軸受部分51が支え、スラスト荷重はアンギュラ玉軸受部分52,52が支える。
従って、ラジアル荷重特性とスラスト荷重特性との両方に優れた特性を得ることができる。
【0012】
また、このように構成された転がり軸受5によれば、各アンギュラ玉軸受部分52,52がスラスト荷重を負担するため、円筒ころ軸受部分51がスラスト荷重を負担しないで済む。
【0013】
【発明の効果】
以上説明したように、本発明によれば、ラジアル荷重特性とスラスト荷重特性の両方の特性に優れた転がり軸受を得ることができる。
【図面の簡単な説明】
【図1】本発明に係る転がり軸受を示す断面図である。
【符号の説明】
1 内輪
1j 軸受中心軸
1m 内輪の軌道溝
2 外輪
2K 間座
2i 外輪軌道
3 中間輪
3o 外側軌道
4 転動体
4b 小端面
4j 中心軸
5 軸受
51 軸受部分
51a 内輪
51b 保持器
52 アンギュラ玉軸受部分
53 同一軸線
54 外輪
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rolling bearing suitable for a rotating member that requires a high load and a low torque in various industries.
[0002]
[Prior art]
Conventionally, rolling bearings combining a plurality of bearings have been proposed. In this rolling bearing, an intermediate ring of a double bearing having an intermediate ring between an inner ring and an outer ring is eccentric with respect to the inner ring, and has rollers between an outer raceway of the intermediate ring and an outer raceway.
[0003]
In this rolling bearing, the rollers are double-row cylindrical rollers with their end faces facing the side surfaces of the bearing, and the rollers are arranged such that the roller central axis is parallel to the bearing central axis. Further, the outer ring is configured in a double-row combination butted through a spacer.
This rolling bearing is small in size, easy to adjust the preload to obtain high rigidity and high precision, and easy to assemble (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-2001-27232 [0005]
[Problems to be solved by the invention]
However, a conventional rolling bearing in which a plurality of bearings are combined cannot improve both the radial load characteristics and the thrust load characteristics.
Then, an object of the present invention is to solve the above-mentioned problems, and to provide a rolling bearing excellent in both a radial load characteristic and a thrust load characteristic.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following solutions.
The present invention is characterized in that an angular contact ball bearing and a cylindrical roller bearing are combined on the same axis.
Here, the number of the angular ball bearings and the number of the cylindrical roller bearings are arbitrary, and need not be the same. When at least one of the angular ball bearings and the cylindrical roller bearings is used in plurals, the angular ball bearings and the cylindrical roller bearings may be alternately arranged, and the angular ball bearings or the cylindrical roller bearings are arranged so as to be continuous in plural rows. May be.
[0007]
Further, in the rolling bearing of the present invention, one or both of the outer ring and the inner ring in the angular ball bearing and the cylindrical roller bearing may be integrally formed.
[0008]
In the rolling bearing configured as described above, since the cylindrical roller bearing having excellent radial load characteristics and the angular ball bearing having excellent thrust load characteristics are combined, excellent radial load characteristics and thrust load characteristics can be obtained.
[0009]
Further, the present invention is characterized in that the angular ball bearing is a double row sandwiching the cylindrical roller bearing in the axial direction.
In the thus configured rolling bearing, since each angular ball bearing bears a thrust load, the cylindrical roller bearing does not have to bear the thrust load.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a rolling bearing according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a rolling bearing 5 according to the present invention. The rolling bearing 5 has a combination of a cylindrical roller bearing portion 51 and double-row angular ball bearing portions 52 provided on both sides of the cylindrical roller bearing portion 51.
The cylindrical roller bearing portion 51 and the angular ball bearing portions 52, 52 have the same axis 53, and the inner rings 51a, 52a and the common outer ring 54 rotate synchronously.
In FIG. 1, reference numerals 51b and 52b denote cages, reference numeral 51c denotes rollers, and reference numeral 52c denotes a ball.
[0011]
As described above, since the rolling bearing 5 of the present invention combines the cylindrical roller bearing portion 51 and the angular ball bearing portions 52, 52, the radial load is supported by the cylindrical roller bearing portion 51, and the thrust load is reduced by the angular ball bearing portion 52. , 52 support.
Therefore, excellent characteristics can be obtained in both the radial load characteristics and the thrust load characteristics.
[0012]
Further, according to the rolling bearing 5 configured as described above, since the angular ball bearing portions 52, 52 bear the thrust load, the cylindrical roller bearing portion 51 does not have to bear the thrust load.
[0013]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain a rolling bearing excellent in both radial load characteristics and thrust load characteristics.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a rolling bearing according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inner ring 1j Bearing center axis 1m Inner ring raceway 2 Outer ring 2K Spacer 2i Outer ring raceway 3 Intermediate wheel 3o Outer raceway 4 Rolling element 4b Small end face 4j Center shaft 5 Bearing 51 Bearing part 51a Inner ring 51b Cage 52 Angular ball bearing part 53 Coaxial line 54 Outer ring

Claims (2)

アンギュラ玉軸受と円筒ころ軸受とを同一軸線上に組み合わせたことを特徴とする転がり軸受。A rolling bearing characterized by combining an angular ball bearing and a cylindrical roller bearing on the same axis. 前記アンギュラ玉軸受が前記円筒ころ軸受を軸方向に挟む複列であることを特徴とする請求項1に記載した転がり軸受。2. The rolling bearing according to claim 1, wherein the angular ball bearing is a double row that sandwiches the cylindrical roller bearing in an axial direction. 3.
JP2003130463A 2003-05-08 2003-05-08 Rolling bearing Pending JP2004332844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003130463A JP2004332844A (en) 2003-05-08 2003-05-08 Rolling bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003130463A JP2004332844A (en) 2003-05-08 2003-05-08 Rolling bearing

Publications (1)

Publication Number Publication Date
JP2004332844A true JP2004332844A (en) 2004-11-25

Family

ID=33505988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003130463A Pending JP2004332844A (en) 2003-05-08 2003-05-08 Rolling bearing

Country Status (1)

Country Link
JP (1) JP2004332844A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115681326A (en) * 2022-10-27 2023-02-03 人本股份有限公司 High-bearing ball column hybrid bearing
JP7440349B2 (en) 2020-06-05 2024-02-28 日本精工株式会社 Rolling bearing unit for wheel support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7440349B2 (en) 2020-06-05 2024-02-28 日本精工株式会社 Rolling bearing unit for wheel support
CN115681326A (en) * 2022-10-27 2023-02-03 人本股份有限公司 High-bearing ball column hybrid bearing

Similar Documents

Publication Publication Date Title
JP4476286B2 (en) Compound rolling bearing
JP2007292305A (en) Rolling bearing and spindle support structure of wind turbine generator
JP2006200677A (en) Thrust ball bearing
JP2011153639A (en) Thrust roller bearing
JP2004332844A (en) Rolling bearing
JP2006070909A (en) Ball bearing
JP2008032147A (en) Rotating shaft supporting structure of wind power generator
JP5273442B2 (en) Radial needle roller bearings
JP2007024112A (en) Self-aligning roller bearing and planetary gear support structure
JP2006144921A (en) Rolling bearing
JP2004092687A (en) Double row angular ball bearing
JPH102326A (en) Composite bearing
JPH11132229A (en) Multi-row taper-roller bearing structure
JP2005331054A (en) Tapered roller bearing, and structure for supporting pilot portion shaft of transmission
JP2004028139A (en) Double-row tapered roller bearing with aligning ring
JP2009180307A5 (en)
JP2003343553A (en) Double row cone roller bearing with aligning ring
JP2007100921A (en) Rolling bearing
JP2004176857A (en) Cross roller bearing
JP2005048932A (en) Double row ball bearing
JP2009174669A (en) Self-alignment roller bearing
JP2004225766A (en) Roller bearing with aligning mechanism
JP6662999B2 (en) Combined cylindrical roller bearing
JP2004036782A (en) Rolling bearing device
JP2589053Y2 (en) Combination bearing device

Legal Events

Date Code Title Description
RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20060325