JP3919055B2 - Rolling bearing - Google Patents

Rolling bearing Download PDF

Info

Publication number
JP3919055B2
JP3919055B2 JP37654499A JP37654499A JP3919055B2 JP 3919055 B2 JP3919055 B2 JP 3919055B2 JP 37654499 A JP37654499 A JP 37654499A JP 37654499 A JP37654499 A JP 37654499A JP 3919055 B2 JP3919055 B2 JP 3919055B2
Authority
JP
Japan
Prior art keywords
cage
hole
inner ring
lubricant
cylindrical rollers
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.)
Expired - Fee Related
Application number
JP37654499A
Other languages
Japanese (ja)
Other versions
JP2001165178A (en
Inventor
能行 森田
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.)
JTEKT Corp
Original Assignee
JTEKT Corp
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 JTEKT Corp filed Critical JTEKT Corp
Priority to JP37654499A priority Critical patent/JP3919055B2/en
Publication of JP2001165178A publication Critical patent/JP2001165178A/en
Application granted granted Critical
Publication of JP3919055B2 publication Critical patent/JP3919055B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F16C33/66—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
    • F16C33/6677—Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring
    • 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
    • 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
    • F16C19/24—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 radial load mainly
    • F16C19/26—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 radial load mainly with a single row of rollers
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned

Landscapes

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

Description

【０００１】
【発明の属する技術分野】
本発明は、保持器が外輪案内とされた転がり軸受に関する。
【０００２】
【従来の技術】
従来の保持器が外輪案内とされた転がり軸受においては、外輪と、内外輪間に介装された複数の転動体と、転動体を保持しかつ外輪にて案内される保持器とを有し、内輪に形成した半径方向に貫通する潤滑剤孔より潤滑剤を軸受内部に給油するようにしているものが知られている。
【０００３】
【発明が解決しようとする課題】
上記従来軸受においては、内輪の潤滑剤孔から潤滑剤を給油した場合、保持器に潤滑剤があたって潤滑剤が振り切られてしまい、保持器外周面と外輪内周面間の案内部に潤滑剤が十分に供給されず、焼付きの発生の一因となるという問題がった。
【０００４】
本発明は、内輪側から給油された潤滑剤が確実に保持器と外輪の案内部に供給される転がり軸受の提供を目的としている。
【０００５】
【課題を解決するための手段】
請求項１に記載の発明は、内輪と、外輪と、内外輪間に介装された複数の円筒ころと、円筒ころを保持しかつ外輪にて案内される保持器とを有し、内輪に形成した潤滑剤孔より潤滑剤を軸受内部に給油するようにした転がり軸受において、保持器の両端部に内輪側にかつ軸受外部に向かって延びる傾斜端部を形成し、この傾斜端部と円筒ころと内輪とで構成される空間に臨む潤滑剤孔を内輪に形成し、円周方向に隣り合う円筒ころに挟まれた保持器部分に径方向貫通孔を形成し、保持器の内周面における円筒ころと径方向貫通孔との間に、径方向内方に突出する突出部を形成したことを特徴とする。
【０００６】
また、請求項２の発明は、上記径方向貫通孔を、円筒ころを省いたポケットにて形成したことを特徴とする。この構成によれば、通常のポケットの一部をそのまま利用できるため、加工が容易となる。
【０００７】
【発明の実施の形態】
図１および図２は円筒ころ軸受の一実施形態であり、内輪１と、外輪２と、内外輪１，２間に介装された複数の円筒ころ３と、円筒ころ３を保持しかつ外輪２にて案内される保持器４とを有し、内輪１に形成した半径方向に貫通する潤滑剤孔５より潤滑剤を軸受内部に給油するようにしている。そしてこの、保持器４はその両端部を内輪１側にかつ軸受外部に向かって延びる傾斜端部６，７に形成し、上記潤滑剤孔５を上記傾斜端部６，７と円筒ころ３と内輪１とで構成される空間８に開口するよう内輪１に形成するとともに、円筒ころ３間の保持器４の部分に径方向貫通孔９を形成している。また、上記潤滑剤孔５は軸方向には円筒ころ３の両側に、また円周方向には複数箇所に形成されているが、その数は特に限定されるものではない。上記構成により、内輪１の潤滑剤孔５から軸受内部に給油された潤滑剤は保持器４の両傾斜端部６，７にて保持器４内径部に入りやすくし、円筒ころ３間の径方向貫通孔９を通過して保持器４の外周面４ａと外輪２の内周面２ａ間の案内部に確実に供給される。これにより案内部での焼付きが防止される。
【０００８】
上記径方向貫通孔９は、円筒ころ３用のポケット１０を、円筒ころ３を省いて構成している。このようにすることにより、ポケット１０の加工のみでよいため、加工が容易である。なお、径方向貫通孔９は円筒ころ３のポケット１０を利用するかわりに、別途保持器４の部分に形成してもよい。図中、１１は、保持器４の内周面から径方向内方に突出する突出部で、円筒ころ３と径方向貫通孔９との間に形成されている。
【０００９】
また、高速回転の軽荷重での使用条件では、軸受寿命が許す限り、円筒ころ３数を少なくすることで円筒ころ３の面圧が高くなり、公転すべりの発生を抑えることができる。このことから、図１および図２の実施形態では、ポケット１０の１個飛びに円筒ころ３を配置した構成が記載されている。従って、円筒ころ３の挿入されたポケット１０と円筒ころ３の挿入されていないポケットすなわち径方向貫通孔９とが交互に配置される。このため軽量となる。
【００１０】
なお、実施形態では、円筒ころ軸受を示したが、他の軸受形式に使用してもよい。
【００１１】
【発明の効果】
請求項１に記載の発明によれば、保持器の両傾斜端部にて潤滑剤を集めて径方向貫通孔を通じて確実に保持器と外輪間の案内部に給油されることになり、焼付きが防止される。
【００１２】
また、請求項２に記載の発明は、上記径方向貫通孔を、円筒ころを省いたポケットにて形成したため、加工が容易となる。
【図面の簡単な説明】
【図１】本発明の一実施形態の円筒ころ軸受の断面図である。
【図２】図１のＡ−Ａ断面図である。
【符号の説明】
１ 内輪
２ 外輪
３ 円筒ころ
４ 保持器
５ 潤滑剤孔
６ 傾斜端部
７ 傾斜端部
８ 空間
９ 径方向貫通孔
１０ ポケット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rolling bearing in which a cage is an outer ring guide.
[0002]
[Prior art]
A rolling bearing having a conventional cage as an outer ring guide has an outer ring, a plurality of rolling elements interposed between the inner and outer rings, and a cage that holds the rolling elements and is guided by the outer ring. It is known that a lubricant is supplied into a bearing through a lubricant hole penetrating in a radial direction formed in an inner ring.
[0003]
[Problems to be solved by the invention]
In the above conventional bearing, when lubricant is supplied from the lubricant hole of the inner ring, the lubricant hits the cage and the lubricant is shaken off, and the guide portion between the outer peripheral surface of the cage and the inner peripheral surface of the outer ring is lubricated. There was a problem that the agent was not sufficiently supplied, which caused the occurrence of seizure.
[0004]
An object of the present invention is to provide a rolling bearing in which the lubricant supplied from the inner ring side is reliably supplied to the cage and the guide part of the outer ring.
[0005]
[Means for Solving the Problems]
Invention according to claim 1, comprising an inner ring, an outer ring, a plurality of cylindrical rollers interposed between the inner and outer rings, and a cage that is guided by holding and outer cylindrical rollers, the inner ring in lubricant from forming lubricant hole rolling bearing so as to refuel the bearing, and to form an inclined end portion extending toward the outside of the bearing inner ring side to the opposite ends of the retainer, the inclined end portion and a cylindrical A lubricant hole facing the space formed by the roller and the inner ring is formed in the inner ring, and a radial through hole is formed in the cage portion sandwiched between the cylindrical rollers adjacent in the circumferential direction . The inner circumferential surface of the cage A protruding portion that protrudes inward in the radial direction is formed between the cylindrical roller and the radial through hole .
[0006]
The invention of claim 2 is characterized in that the radial through hole is formed by a pocket from which cylindrical rollers are omitted. According to this configuration, since a part of a normal pocket can be used as it is, processing becomes easy.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 and 2 show an embodiment of a cylindrical roller bearing. An inner ring 1, an outer ring 2, a plurality of cylindrical rollers 3 interposed between the inner and outer rings 1 and 2, and the outer ring that holds the cylindrical rollers 3. 2, and a lubricant is supplied to the inside of the bearing through a lubricant hole 5 formed in the inner ring 1 and penetrating in the radial direction. The cage 4 is formed with inclined end portions 6 and 7 extending at both ends on the inner ring 1 side and toward the outside of the bearing, and the lubricant hole 5 is formed on the inclined end portions 6 and 7 and the cylindrical roller 3. The inner ring 1 is formed so as to open into a space 8 formed by the inner ring 1, and a radial through hole 9 is formed in a portion of the cage 4 between the cylindrical rollers 3. The lubricant holes 5 are formed on both sides of the cylindrical roller 3 in the axial direction and at a plurality of locations in the circumferential direction, but the number is not particularly limited. With the above configuration, the lubricant supplied from the lubricant hole 5 of the inner ring 1 to the inside of the bearing easily enters the inner diameter portion of the cage 4 at both inclined end portions 6 and 7 of the cage 4, and the diameter between the cylindrical rollers 3 is increased. It passes through the direction through hole 9 and is reliably supplied to the guide portion between the outer peripheral surface 4 a of the cage 4 and the inner peripheral surface 2 a of the outer ring 2. This prevents seizure at the guide.
[0008]
The radial through-hole 9 is formed by omitting the cylindrical roller 3 from the pocket 10 for the cylindrical roller 3. By doing in this way, since it is only necessary to process the pocket 10, the processing is easy. Instead of using the pocket 10 of the cylindrical roller 3, the radial through hole 9 may be formed separately in the cage 4 portion. In the figure, reference numeral 11 denotes a protruding portion that protrudes radially inward from the inner peripheral surface of the cage 4 and is formed between the cylindrical roller 3 and the radial through hole 9.
[0009]
Further, under the conditions of use under a light load of high speed rotation, as long as the bearing life permits, the surface pressure of the cylindrical roller 3 is increased by reducing the number of the cylindrical rollers 3, and the occurrence of revolving slip can be suppressed. For this reason, in the embodiment shown in FIGS. 1 and 2, a configuration in which the cylindrical roller 3 is arranged in one pocket 10 is described. Therefore, the pockets 10 in which the cylindrical rollers 3 are inserted and the pockets in which the cylindrical rollers 3 are not inserted, that is, the radial through holes 9 are alternately arranged. For this reason, it becomes lightweight.
[0010]
In addition, although the cylindrical roller bearing was shown in embodiment, you may use it for another bearing type.
[0011]
【The invention's effect】
According to the invention described in claim 1, it will be oil in the guide portion between the securely cage and the outer ring to collect lubricant at both inclined end of the hold device through radial through-holes, baked Sticking is prevented.
[0012]
Moreover, since the said radial direction through-hole was formed in the pocket which excluded the cylindrical roller , the process of Claim 2 becomes easy.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a cylindrical roller bearing according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inner ring 2 Outer ring 3 Cylindrical roller 4 Cage 5 Lubricant hole 6 Inclined end part 7 Inclined end part 8 Space 9 Radial direction through-hole 10 Pocket

Claims (2)

内輪と、外輪と、内外輪間に介装された複数の円筒ころと、円筒ころを保持しかつ外輪にて案内される保持器とを有し、内輪に形成した潤滑剤孔より潤滑剤を軸受内部に給油するようにした転がり軸受において、保持器の両端部に内輪側にかつ軸受外部に向かって延びる傾斜端部を形成し、この傾斜端部と円筒ころと内輪とで構成される空間に臨む潤滑剤孔を内輪に形成し、円周方向に隣り合う円筒ころに挟まれた保持器部分に径方向貫通孔を形成し、保持器の内周面における円筒ころと径方向貫通孔との間に、径方向内方に突出する突出部を形成したことを特徴とする転がり軸受。An inner ring, an outer ring, a plurality of cylindrical rollers interposed between the inner and outer rings, retain the cylindrical rollers and having a cage which is guided by the outer ring, the lubricant from the lubricant hole formed in the inner ring space formed by the rolling bearing so as to refuel the bearing, and to form an inclined end portion extending toward the outside of the bearing inner ring side to the opposite ends of the cage, and the inclined end portion and the cylindrical rollers and the inner ring A lubricant hole facing the inner ring is formed in the inner ring, a radial through hole is formed in a cage portion sandwiched between cylindrical rollers adjacent in the circumferential direction, and a cylindrical roller and a radial through hole on the inner circumferential surface of the cage are formed. A rolling bearing characterized in that a projecting portion projecting radially inward is formed therebetween . 上記径方向貫通孔を、円筒ころを省いたポケットにて形成したことを特徴とする請求項１に記載の転がり軸受。The rolling bearing according to claim 1, wherein the radial through hole is formed by a pocket from which cylindrical rollers are omitted.
JP37654499A 1999-12-10 1999-12-10 Rolling bearing Expired - Fee Related JP3919055B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP37654499A JP3919055B2 (en) 1999-12-10 1999-12-10 Rolling bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP37654499A JP3919055B2 (en) 1999-12-10 1999-12-10 Rolling bearing

Publications (2)

Publication Number Publication Date
JP2001165178A JP2001165178A (en) 2001-06-19
JP3919055B2 true JP3919055B2 (en) 2007-05-23

Family

ID=18507321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP37654499A Expired - Fee Related JP3919055B2 (en) 1999-12-10 1999-12-10 Rolling bearing

Country Status (1)

Country Link
JP (1) JP3919055B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4211504B2 (en) 2003-06-16 2009-01-21 株式会社Ｉｈｉ Rolling bearing lubrication structure
JP2008002659A (en) * 2006-06-26 2008-01-10 Ntn Corp High-speed rotation single row cylindrical roller bearing
JP2009047243A (en) * 2007-08-20 2009-03-05 Nsk Ltd Ball bearing
DE102016203831A1 (en) * 2016-03-09 2017-09-14 Schaeffler Technologies AG & Co. KG Rolling bearing cage

Also Published As

Publication number Publication date
JP2001165178A (en) 2001-06-19

Similar Documents

Publication Publication Date Title
JP3919055B2 (en) Rolling bearing
JP2011021623A (en) Outer ring of roller bearing, and roller bearing
EP1632684A3 (en) Tapered roller bearings
JP2012246972A (en) Roller thrust bearing
JP4136298B2 (en) Directional ball bearing
JPH0830494B2 (en) Thin cross roller slewing ring bearing
JP2003049848A (en) Ball bearing for supporting pulley
JP5668877B2 (en) Bi-splitting rolling bearing and bearing device having the same
JP4126529B2 (en) Tapered roller bearing
JP3892213B2 (en) 4-point contact ball bearing
JPH11132244A (en) Cylindrical roller bearing device provided with lubricating device
JP5625474B2 (en) Bi-splitting rolling bearing and bearing device having the same
JP2010159787A (en) Thrust roller bearing
JPH0138329Y2 (en)
EP1104855A1 (en) Pure rolling bearing
JP2006125604A (en) Thrust roller bearing
JP2008190598A (en) Thrust roller bearing
JP2003120683A (en) Thrust roller bearing
JP2007327518A (en) Cylindrical roller bearing and its cage
KR101864611B1 (en) Ball bearing
JP2010031967A (en) Roller bearing
JP2004084705A (en) Cylindrical roller bearing with synthetic resin retainer
JP2001099168A (en) Roller bearing
JP5359283B2 (en) Thrust roller bearing
JP2001041252A (en) Thrust roller bearing

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060628

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060801

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061002

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070123

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070208

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100223

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110223

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110223

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120223

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120223

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130223

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130223

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140223

Year of fee payment: 7

LAPS Cancellation because of no payment of annual fees