DE2405720A1 - Cylindrical roller bearing has hollow rollers - which contain lubricating substance for gradual usage - Google Patents

Cylindrical roller bearing has hollow rollers - which contain lubricating substance for gradual usage

Info

Publication number
DE2405720A1
DE2405720A1 DE19742405720 DE2405720A DE2405720A1 DE 2405720 A1 DE2405720 A1 DE 2405720A1 DE 19742405720 DE19742405720 DE 19742405720 DE 2405720 A DE2405720 A DE 2405720A DE 2405720 A1 DE2405720 A1 DE 2405720A1
Authority
DE
Germany
Prior art keywords
outer cylinder
rolling
cylinder
lubricant
rolling elements
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
Application number
DE19742405720
Other languages
German (de)
Other versions
DE2405720C2 (en
Inventor
Kozo Sato
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19742405720 priority Critical patent/DE2405720C2/en
Publication of DE2405720A1 publication Critical patent/DE2405720A1/en
Application granted granted Critical
Publication of DE2405720C2 publication Critical patent/DE2405720C2/en
Expired legal-status Critical Current

Links

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
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6607—Retaining the grease in or near the bearing
    • F16C33/6614—Retaining the grease in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
    • 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
    • F16C33/34—Rollers; Needles
    • 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

Abstract

A cylindrical roller bearing has tubular roller elements. Each element carries two tubular sleeves which are free to rotate inside the roller tube. The overall length of the two sleeves is fractionally larger than the roller, thus acting as spacer for the roller cage. The sleeves are filled with a lubricating substance which reaches the bearing races through the gap between the two sleeves and a hole in the roller tube at a matching axial position.

Description

W ä l z l a g e r Die vorliegende Erfindung bezieht sich auf ein Viälzlager mit zylindrischen Wälzkörpern aus Metall. The present invention relates to a Viälzlager with cylindrical rolling elements made of metal.

Die Wälzkörper bekannter Wälzlager sind mit Konstruktionsmängeln behaltet, d.h.die Wälzkörper weisen keinen Raum zur Aufnahme von Reibkräften oder zum Ausgleich der Ausdehnung der Wälzkörper bei hohen Arbeitstemperaturen auf, wobei sie auch mangels eines entsprechenden Raums keinerlei Schmiermittel vorrat aufnehmen können, wodurch sich natürlich die Lebensdauer der Wälzkörper verkürzt.The rolling elements of known rolling bearings are kept with construction defects, i.e. the rolling elements have no space to absorb frictional forces or to compensate for them the expansion of the rolling elements at high working temperatures, whereby they also due to the lack of adequate space, they cannot hold any lubricant supply, which of course shortens the life of the rolling elements.

Aufgabe der vorliegenden Erfindung ist die Behebung der vorgenannten Unzulänglichkeiten bekannter Wälzlager durch einen Wälzkörper aus einer Doppelzylinderkonstruktion, in welcher Schniermittelvorrat in ausreichender Menge für den Schmierungsbedarf des Mechanismus aufnehmbar ist.The object of the present invention is to remedy the aforementioned Inadequacies of known rolling bearings due to a rolling element made of a double cylinder construction, in which lubricant supply in sufficient quantity for the lubrication requirement of the mechanism is recordable.

Zur lösung dieser Aufgabe sieht die Erfindung ein Wälzlager vor mit Wälzkörpern, die jeweils einen Außenzylinder aufweisen, mit zwei mit fettartigem Schmiermittel gefüllten Innenzylindern, welche mit einem winzigen Zwischenspalt aneinander angrenzend innerhalb des Außenzylinders angeordnet sind, wobei im Außenzylinder eine mit dem Spalt zwischen den Innenzylindern in Verbindung stehende schmale Bohrung ausgebildet ist,als Abscheideöffnung für das Schmiermittel bei jeder Umdrehung des Wälzkörpers zur kontinuier@ichen Schmierung von Wälzkörpern und Laufringen.To solve this problem, the invention provides a roller bearing with Rolling elements, each of which has an outer cylinder, with two inner cylinders filled with grease-like lubricant, which with a tiny Intermediate gaps are arranged adjacent to one another within the outer cylinder, one in the outer cylinder communicating with the gap between the inner cylinders standing narrow bore is formed as a separation opening for the lubricant with every revolution of the rolling element for continuous lubrication of rolling elements and races.

Dieses Wälzlager bedarf keiner häufigen Schmierung, da die Wälzkörper mit einer großen Menge Schmiermittel gefüllt sind.This rolling bearing does not require frequent lubrication because the rolling elements are filled with a large amount of lubricant.

Gemäß einem weiteren Merkmal der Erfindung wird die Reiblast und die Abriebwirkung dank der doppelten Metallzylinderkonstruktion reduziert, wobei sowohl der Außenzylinder als auch die Innenzylinder die über den äußeren und den inneren Laufring einwirkenden Reibkräfte aufnehmen.According to a further feature of the invention, the frictional load and the Reduced abrasion thanks to the double metal cylinder construction, with both the outer cylinder as well as the inner cylinder over the outer and inner Absorb frictional forces acting on the raceway.

Die Erfindung wird im folgenden anhand des in der beiliegenden Zeichnung dargestellten Ausführungsbeispiels näher beschrieben.The invention is described below with reference to the in the accompanying drawing illustrated embodiment described in more detail.

In der Zeichnung zeigt: Fig. 1 einen Schnitt durch die Hauptbestandteile eines Wälzlagers gemäß der Erfindung; Fig. 2 eine perspektivische Ansicht der Wälzkörper gemäß der Erfindung; Fig. 3 eine perspektivische Sprengansicht eines erfindungsgemäßen Wälzkörpers.The drawing shows: FIG. 1 a section through the main components a rolling bearing according to the invention; Fig. 2 is a perspective view of the rolling elements according to the invention; Fig. 3 is an exploded perspective view of an inventive Rolling element.

In Fig. 1 bezeichnet A ein Wälzlager mit Wälzkörpern 14, die in einem äußeren Laufring 12 und einem inneren Laufring 11 angeordnet sind und in diesen von einem (nicht dargegestellten )Käfig gehalten werden. Dieser Aufbau unterscheidet sich nicht von bekannten Wälzlagern.In Fig. 1, A denotes a rolling bearing with rolling elements 14 in a outer race 12 and an inner race 11 are arranged and in these of a (not shown ) Be kept in a cage. This Structure does not differ from known rolling bearings.

Erfindungsgemäß wird der Wälzkörper 14 aus einer Nickel-Chrom-Legierung hergestellt, welche sich durch hohe Reibfestigkeit auszeichnet, wobei der Wälzkörper 14 aus einem Außenzylinder 15 mit zwei Innenzylindern 16 besteht, welche mit einem m winzigen Zwischenspalt 17 aneinander angrenzend innerhalb des Zylinders 15 größeren Durchmessers angeordnet sind; sie sind außerdem etwas länger ausgebildet und ragen über den Außenzylinder 15 an dessen beiden Enden hinaus.According to the invention, the rolling element 14 is made from a nickel-chromium alloy produced, which is characterized by high friction resistance, the rolling element 14 consists of an outer cylinder 15 with two inner cylinders 16, which with a m tiny intermediate gap 17 adjacent to one another within the cylinder 15 larger Diameter are arranged; they are also a little longer and protrude beyond the outer cylinder 15 at both ends thereof.

Der gesamte Hohlraum der Innenzylinder ist mit einem fettartigen Schmiermittel B gefüllt einschließlich des winzigen Zwischenspalts 17, wobei im Außenzylinder 15 eine mit dem Abstandsspalt 17 in Verbindung stehende schmale Bohrung 18 als Abscheideöffnung ausgebildet ist, so daß das Schmiermittel über den Abstandsspalt 17 bei jeder Umdrehung des Wälzkörpers hinausdringen kann.The entire cavity of the inner cylinder is covered with a grease-like lubricant B filled including the tiny intermediate gap 17, with the outer cylinder 15 a narrow bore 18 connected to the spacing gap 17 as a separation opening is designed so that the lubricant over the spacing gap 17 with each revolution of the rolling element can penetrate.

Auch zwischen dem Innenzylinder 16 und dem Außenzylinder 15 besteht ein kleiner Abstand, der zur Aufnahme der über den äußeren und inneren Laufring auf den Wälzkörper aufgebrachten Reibkräfte beiträgt.There is also between the inner cylinder 16 and the outer cylinder 15 a small gap to accommodate the over the outer and inner races contributes to the friction forces applied to the rolling elements.

Die Innenzylinder 16 nehmen auch an beiden Enden des Wälzkörpers Reibkräfte auf, d.h. über die aus dem Außenzylinder 15 beidseitig vorstehenden Enden, und zwar unabhängig vom Außenzylinder 15, wodurch sich der Abrieb des Außenzylinders 15 stark verringert und wobei dem Wälzkörper und den Laufringen stets ausreichend Schmiermittel zugeführt wird, was zusätzlich wesentlich zur Reduzierung der Abriebwirkung beiträgt.The inner cylinders 16 also take frictional forces at both ends of the rolling element on, i.e. over the ends protruding from the outer cylinder 15 on both sides, namely independent of the outer cylinder 15, whereby the abrasion of the outer cylinder 15 is strong reduced and with the rolling elements and the races always sufficient lubricant is supplied, which also contributes significantly to reducing the abrasion effect.

Claims (2)

P a t e n t a n s p r ü c h eP a t e n t a n s p r ü c h e 1. Wälzlager, gekennzeichnet durch Wälzkörper (14) aus einer Nickel-Chrom-Legierung mit hoher Reibfestigkeit, welche jeweils einen Außenzylinder (15) aufweisen und zwei mit fettartigem Schmiermittel (8) gefüllte Innenzylinder (16), welche mit einem winzigen Zwischenspalt (17) aneinander angrenzend innerhalb des Außenzylinders (15) angeordnet sind, wobei im Außenzylinder (15) eine mit dem Spalt (17) zwischen den Innenzylindern (16) in Verbindung stehende schmale Bohrung (18) als Abscheidöffnung ausgebildet ist für das Schmiermittel bei jeder Umdrehung des Wälzkörpers zur kontinuierlichen Schmierung von Wälzköroer und Laufringen.1. Rolling bearing, characterized by rolling elements (14) made of a nickel-chromium alloy with high frictional resistance, each of which has an outer cylinder (15) and two inner cylinders (16) filled with grease-like lubricant (8), which with a tiny gap (17) adjacent to each other within the outer cylinder (15) are arranged, wherein in the outer cylinder (15) one with the gap (17) between the Inner cylinders (16) connected narrow bore (18) as a separation opening is designed for the lubricant with each revolution of the rolling element for continuous Lubrication of rolling elements and race rings. 2. Wälzlager nach Anspruch 1, dadurch gekennzeichnet, daB die Innenzylinder (16) über den Außenzylinder (15) an dessen beiden Enden hinausragen, wobei die vorstehenden Enden mit dem den äußeren und inneren Laufring (12, 11) zusammenhaltenden Käfig in Verbindung stehen zur vom Außenzylinder (15) unabhängigen Drehung der Innenzylinder (16), und daß zwischen dem Außenzylinder (15) und den Innenzylindern (16) ein kleiner, mit Schmiermittel (B) gefüllter, die Reibung zwischen dem Außenzylinder und den Innenzylindern ausschließender und die über den äußeren und inneren Laufring auf den Wälzkörper aufgebrachten Stoßkräfte aufnehmender Zwischenspalt (17) ausgebildet ist. 2. Rolling bearing according to claim 1, characterized in that the inner cylinder (16) protrude beyond the outer cylinder (15) at both ends, the above Ends with the cage holding the outer and inner races (12, 11) together are connected to the rotation of the inner cylinder independent of the outer cylinder (15) (16), and that between the outer cylinder (15) and the inner cylinders (16) a small, filled with lubricant (B), the friction between the outer cylinder and the Inner cylinders excluding and those on the outer and inner race formed the intermediate gap (17) absorbing the impact forces applied to the rolling elements is.
DE19742405720 1974-02-06 1974-02-06 Rolling elements for a rolling bearing Expired DE2405720C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742405720 DE2405720C2 (en) 1974-02-06 1974-02-06 Rolling elements for a rolling bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742405720 DE2405720C2 (en) 1974-02-06 1974-02-06 Rolling elements for a rolling bearing

Publications (2)

Publication Number Publication Date
DE2405720A1 true DE2405720A1 (en) 1975-08-07
DE2405720C2 DE2405720C2 (en) 1982-12-30

Family

ID=5906784

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742405720 Expired DE2405720C2 (en) 1974-02-06 1974-02-06 Rolling elements for a rolling bearing

Country Status (1)

Country Link
DE (1) DE2405720C2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0275080A2 (en) * 1987-01-12 1988-07-20 Matsushita Electric Industrial Co., Ltd. Solid lubricant bearing
DE19644045A1 (en) * 1996-10-31 1998-05-14 Schaeffler Waelzlager Ohg Freewheel unit, particularly of clamp body and clamp roller type
FR2781028A1 (en) * 1998-07-11 2000-01-14 Freudenberg Carl Fa VIBRATION DAMPER ADAPTING TO ROTATION SPEED
DE102006057874A1 (en) * 2006-12-08 2008-06-12 Schaeffler Kg Hollow roller of a cylindrical roller bearing, method for producing such a hollow roller
WO2009049609A1 (en) * 2007-10-17 2009-04-23 Schaeffler Kg Method and arrangement for supplying a bearing region with a lubricant, particularly for supplying a rolling bearing with lubricant
DE102012204571A1 (en) 2012-03-22 2013-09-26 Schaeffler Technologies AG & Co. KG Rolling bearing has recesses that are respectively provided at boards of inner ring raceway and outer ring raceway, are filled with lubricant and are provided with different cross section areas
CN114754072A (en) * 2022-02-11 2022-07-15 长春电子科技学院 Roller, high-precision bearing and high-end equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458317A (en) * 1891-08-25 Journal-box
US588667A (en) * 1897-08-24 Oil retainer and distributer for hollow rolls of roller-bearings
GB579252A (en) * 1943-07-30 1946-07-29 Power Jets Ltd Improvements relating to ball and roller bearings
DE919804C (en) * 1953-02-08 1955-05-31 Heinrich Brinkmann Support body for the roller bodies axially loaded roller bearings
DE935825C (en) * 1953-12-12 1955-12-29 Heinrich Brinkmann Support body for the roller bodies axially loaded roller bearings
CH389331A (en) * 1959-09-25 1965-03-15 Straumann Inst Ag Rolling elements and process for their manufacture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458317A (en) * 1891-08-25 Journal-box
US588667A (en) * 1897-08-24 Oil retainer and distributer for hollow rolls of roller-bearings
GB579252A (en) * 1943-07-30 1946-07-29 Power Jets Ltd Improvements relating to ball and roller bearings
DE919804C (en) * 1953-02-08 1955-05-31 Heinrich Brinkmann Support body for the roller bodies axially loaded roller bearings
DE935825C (en) * 1953-12-12 1955-12-29 Heinrich Brinkmann Support body for the roller bodies axially loaded roller bearings
CH389331A (en) * 1959-09-25 1965-03-15 Straumann Inst Ag Rolling elements and process for their manufacture

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0275080A2 (en) * 1987-01-12 1988-07-20 Matsushita Electric Industrial Co., Ltd. Solid lubricant bearing
EP0275080A3 (en) * 1987-01-12 1989-05-31 Matsushita Electric Industrial Co., Ltd. Solid lubricant bearing
DE19644045A1 (en) * 1996-10-31 1998-05-14 Schaeffler Waelzlager Ohg Freewheel unit, particularly of clamp body and clamp roller type
DE19644045C2 (en) * 1996-10-31 2002-04-18 Ina Schaeffler Kg freewheel
FR2781028A1 (en) * 1998-07-11 2000-01-14 Freudenberg Carl Fa VIBRATION DAMPER ADAPTING TO ROTATION SPEED
DE102006057874A1 (en) * 2006-12-08 2008-06-12 Schaeffler Kg Hollow roller of a cylindrical roller bearing, method for producing such a hollow roller
WO2008067794A3 (en) * 2006-12-08 2009-01-29 Schaeffler Kg Hollow roller of a cylindrical roller bearing, method for producing a corresponding hollow roller
DE102006057874B4 (en) * 2006-12-08 2017-11-16 Schaeffler Technologies AG & Co. KG Hollow roller of a cylindrical roller bearing, method for producing such a hollow roller
WO2009049609A1 (en) * 2007-10-17 2009-04-23 Schaeffler Kg Method and arrangement for supplying a bearing region with a lubricant, particularly for supplying a rolling bearing with lubricant
DE102012204571A1 (en) 2012-03-22 2013-09-26 Schaeffler Technologies AG & Co. KG Rolling bearing has recesses that are respectively provided at boards of inner ring raceway and outer ring raceway, are filled with lubricant and are provided with different cross section areas
CN114754072A (en) * 2022-02-11 2022-07-15 长春电子科技学院 Roller, high-precision bearing and high-end equipment
CN114754072B (en) * 2022-02-11 2023-09-22 长春电子科技学院 Roller, high-precision bearing and high-end equipment

Also Published As

Publication number Publication date
DE2405720C2 (en) 1982-12-30

Similar Documents

Publication Publication Date Title
DE3105632C2 (en) Rotary and longitudinal guide roller bearing arrangement
DE2422488C2 (en) Rolling bearings with inserted raceways
EP0265714B1 (en) Flexible spacing element for a roller bearing
DE2025591A1 (en) Bearings to accommodate a shaft for high speeds
DE3224448A1 (en) LUBRICABLE DOUBLE ROW ROLLER BEARING
DE3725027A1 (en) WIRE ROLLER BEARING WITH FLAT WIRE
EP0157935A1 (en) Wire race bearing
DE4008347A1 (en) ANGLE BALL BEARING AND METHOD FOR ASSEMBLING SUCH A BALL BEARING
DE4125730C2 (en) Roller bearings with roller support protrusions formed by deformation
DE2405720A1 (en) Cylindrical roller bearing has hollow rollers - which contain lubricating substance for gradual usage
DE2844683C2 (en)
DE3218546C2 (en)
CH636936A5 (en) BALL BUSH FOR THE LENGTH BALL GUIDE OF A SHAFT IN A HOUSING HOLE.
DE1575608B2 (en) Rolling bearings for longitudinal movements
DE1400991C2 (en) Arrangement of thrust washers
DE3017942A1 (en) Industrial friction roller track - has outer rings frictionally rotatable on axially spaced bushes fixed on driven shafts
DE2340001A1 (en) LONGITUDINAL GUIDE BEARING
DE4327543A1 (en) Sliding rolling bearing that has rolling parts
DE2749118C3 (en) Cage with sealing lips for an axial roller bearing
DE2416282C2 (en) Double row rolling bearing and method of assembling the same
EP0080034A1 (en) Ball bushing for unlimited longitudinal motions
DE6912859U (en) ROLLER BEARING
DE2522643B2 (en) ROLLER CAGE FOR SPOKE WHEEL BEARINGS
DE3811958A1 (en) Cage for rolling bearings
DE3006643A1 (en) WIRE ROLLER BEARING

Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8363 Opposition against the patent
8330 Complete disclaimer