DE3338055A1 - Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production - Google Patents

Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production

Info

Publication number
DE3338055A1
DE3338055A1 DE19833338055 DE3338055A DE3338055A1 DE 3338055 A1 DE3338055 A1 DE 3338055A1 DE 19833338055 DE19833338055 DE 19833338055 DE 3338055 A DE3338055 A DE 3338055A DE 3338055 A1 DE3338055 A1 DE 3338055A1
Authority
DE
Germany
Prior art keywords
rolling
cage
bearing cages
rolling bodies
production
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.)
Withdrawn
Application number
DE19833338055
Other languages
German (de)
Inventor
Friedrich 7157 Murrhardt Legrom
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 DE19833338055 priority Critical patent/DE3338055A1/en
Publication of DE3338055A1 publication Critical patent/DE3338055A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B29C37/0014—Discharging moulded articles from the mould by flexibly or permanently deforming undercut portions of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2628—Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing 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
    • 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
    • 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
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0033—Moulds or cores; Details thereof or accessories therefor constructed for making articles provided with holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/04—Bearings
    • 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
    • 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
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • F16C19/463—Needle bearings with one row or needles consisting of needle rollers held in a cage, i.e. subunit without race rings
    • 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
    • F16C2220/00—Shaping
    • F16C2220/02—Shaping by casting
    • F16C2220/04—Shaping by casting by injection-moulding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Landscapes

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

Abstract

The invention relates to the area of rolling-bearing cages made of engineering moulding compositions (plastics). It provides a simple and effective way of solving the technical problem of high demoulding forces of the slides in the injection mould, which serve for moulding externally the undercuts (8) holding the rolling bodies (2) in the cage. This is performed by the outer holding strips (8) being moulded by special notches (7) on the mould slides (6) in such a way that they can spring back during demoulding. This achieves on the one hand low demoulding forces, on the other hand easy fitting of the rolling bodies in the cage and at the same time their reliable securing. Requirements for enveloping circles which are intended to ensure the rolling-body, outboard and inboard guidance of the cage can be met in any event by virtue of the high precision which can be achieved. <IMAGE>

Description

WÄLZLAGERKÄFIGE AUS KUNSTSTOFF MIT FEDERNDER HALTERUNG DERPLASTIC ROLLING BEARING CAGES WITH SPRING MOUNTING OF THE

WÄLZKÖRPFER NACH AUSSEN UND VERFAHREN ZU DEREN HERSTELLUNG In vielen Fällen bereitet die Entformung von Wälzlagerkäfigen aus Kunststoff Probleme, wenn die Kugel-, Nadel- und Rollentaschen mit Hinterschnitten versehen sind, die ein Herausfallen der Wälzkörper (Kugeln, Nadeln, Rollen) verhindern sollen. Als weitere Schwierigkeit ergibt sich, daß bei Lagerkäfigen mit starken Hinterschnitten die Montage der Wälzkörper (Kugeln, Nadeln, Rollen), durch die hohen zu überwindenden Kräfte, stark erschwert.OUTSIDE ROLLING BODIES AND METHOD OF MANUFACTURING THEREOF In many Cases, the demolding of roller bearing cages made of plastic causes problems, though the ball, needle and roller pockets are provided with undercuts that a The aim is to prevent the rolling elements (balls, needles, rollers) from falling out. As another Difficulty arises that the bearing cages with strong undercuts Assembly of the rolling elements (balls, needles, rollers), through the high to be overcome Forces, very difficult.

Das der Anmeldung zugrunde liegende Verfahren basiert nun darauf, daß die für die Halterung der Wälzkörper vorgesehenen Hinterschnitte federnd ausgeführt werden. Dies soll am Beispiel eines Nadelkäfigs aus Polyamid und der hierfür erforderlichen Spritzgußform erläutert werden.The procedure on which the registration is based is now based on that the undercuts provided for holding the rolling elements are resilient will. This should be done using the example of a needle cage made of polyamide and the one required for this Injection mold are explained.

Bild 1 zeigt den Schnitt durch die Tasche (3) eines Nadelkäfigs (1) mit Wälzkörper (2) in bisheriger Ausführung. Die äußeren Halteleisten (4) und die inneren Halteleisten (5) hindern den Wälzkörper (2) gegen Herausfallen aus der Nadeltasche (3) des Käfigs (1). Da die Halteleisten (4) und (5) relativ widerstandsfähiger Form die Nadeltasche (3) verjüngen, sind hohe Entformungskräfte im Spritzgußwerkzeug und hohe Montagekräfte derwälzkörper (2) erforderlich.Figure 1 shows the section through the pocket (3) of a needle cage (1) with rolling element (2) in the previous version. The outer retaining strips (4) and the inner retaining strips (5) prevent the rolling elements (2) from falling out of the needle pocket (3) of the cage (1). Because the retaining strips (4) and (5) have a relatively resistant shape Taper the needle pocket (3), there are high demolding forces in the injection molding tool and high assembly forces of the rolling elements (2) are required.

Bild 2 zeigt den Schnitt durch die Nadeltasche (3) eines Nadelkäfigs (1) mit ungefederten inneren Halteleisten (5) und gefederten Halteleisten (8), die einerseits eine leichte Entformung des Schiebers (6) und andererseits ein leichtes, jedoch sicheres Einschnappen des Wälzkörpers (2) ermöglichen.Figure 2 shows the section through the needle pocket (3) of a needle cage (1) with unsprung inner retaining strips (5) and spring-loaded retaining strips (8), the on the one hand, a slight demolding of the slide (6) and, on the other hand, a slight, however, allow safe snapping of the rolling element (2).

Dies wird dadurch erreicht, daß an dem die Nadeltaschen (3) formenden Schieber (6) Einkerbungen (7) angebracht werden, die die federnde Ausführung der äußeren Halteleisten (8) ermöglichen.This is achieved in that the needle pockets (3) forming on the Slider (6) notches (7) are attached, which the resilient design of the enable outer retaining strips (8).

Claims (2)

Patentansprüche 1. Käfig zur F#ührung von Wälzkörper in Wälzlagern, dadurch gekennzeichnet, daß die Halteleisten (8) zur Halterung des Wälzkörpers (2) gegen Herausfallen nach Außen aus dem Wälzlagerkäfig (1) durch angeformte Freischnitte federnd ausgeführt sind. Claims 1. Cage for guiding rolling elements in rolling bearings, characterized in that the retaining strips (8) for holding the rolling element (2) against falling out of the rolling bearing cage (1) through molded cutouts are resilient. 2. Schieber einer Spritz- oder Preßform zur Herstellung von Wälzlagerkäfigen der die Tasche (3) für den Wälzkörper (2) eines Wälzlagerkäfigs (1) formt, dadurch gekennzeichnet, daß der Schieber (6) Einkerbungen (7) aufweist, die während des Spritzgieß- oder Preßvorganges am Wälzlagerkäfig (1) hinter den Halteleisten (8) Freischnitte anformen, die das Federn der Halteleisten (8) gegen Herausfallen des Wälzkörpers (2) aus der Tasche (3) ermöglichen.2. Slide of an injection or compression mold for the production of roller bearing cages which forms the pocket (3) for the rolling element (2) of a rolling bearing cage (1), thereby characterized in that the slide (6) has notches (7) which during the Injection molding or pressing process on the roller bearing cage (1) behind the retaining strips (8) Form cutouts that prevent the spring of the retaining strips (8) from falling out Allow rolling element (2) from the pocket (3).
DE19833338055 1983-10-20 1983-10-20 Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production Withdrawn DE3338055A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833338055 DE3338055A1 (en) 1983-10-20 1983-10-20 Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833338055 DE3338055A1 (en) 1983-10-20 1983-10-20 Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production

Publications (1)

Publication Number Publication Date
DE3338055A1 true DE3338055A1 (en) 1985-05-02

Family

ID=6212266

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833338055 Withdrawn DE3338055A1 (en) 1983-10-20 1983-10-20 Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production

Country Status (1)

Country Link
DE (1) DE3338055A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628796A1 (en) * 1985-09-18 1987-03-26 Nippon Thompson Co Ltd HOLDING DEVICE OF A WAELZ- OR. ROLLER BEARINGS FOR STRAIGHT LINE MOTION AND METHOD FOR PRODUCING THE SAME
CN114939968A (en) * 2022-05-20 2022-08-26 马鞍山顾地塑胶有限公司 Ejection auxiliary mechanism for demolding of injection mold
US11859677B2 (en) 2022-04-25 2024-01-02 Ringspann Gmbh Cage freewheel with bearing rollers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628796A1 (en) * 1985-09-18 1987-03-26 Nippon Thompson Co Ltd HOLDING DEVICE OF A WAELZ- OR. ROLLER BEARINGS FOR STRAIGHT LINE MOTION AND METHOD FOR PRODUCING THE SAME
US11859677B2 (en) 2022-04-25 2024-01-02 Ringspann Gmbh Cage freewheel with bearing rollers
CN114939968A (en) * 2022-05-20 2022-08-26 马鞍山顾地塑胶有限公司 Ejection auxiliary mechanism for demolding of injection mold
CN114939968B (en) * 2022-05-20 2024-03-12 马鞍山顾地塑胶有限公司 Ejection auxiliary mechanism for demolding of injection mold

Similar Documents

Publication Publication Date Title
DE3127710C2 (en) Method for manufacturing a ball joint
DE1944010B2 (en) Process for the production of rollers, wheels or the like. by overmoulding a roller bearing with plastic
WO1987004502A1 (en) Injection-moulded cage for roller bearings
DE956985C (en) Process for the production of needle roller cages made of thermoplastic, injection-molded or castable plastic
DE3310938C2 (en)
DE10122106B4 (en) Rolling element spacers for a rolling guide device
EP1003979A1 (en) Ball joint
EP0085292B1 (en) Linear ball-bearing for guiding a shaft having a rectangular cross-section
DE3338055A1 (en) Rolling-bearing cages of plastic with resilient external securing of the rolling bodies and process for their production
DE1286829B (en) Roller bearing cage made of plastic
EP2110222B1 (en) Roller bearing cage and method for manufacturing a roller bearing cage
DE2529913C2 (en) Method for producing rollers or the like. By encapsulating one or more roller bearings with plastic and roller produced according to this method
DE4112506A1 (en) Plastics roller bearing cage - has open circumference with spring steel wire ring producing radial location force when assembled
DE3338056A1 (en) Rolling-bearing cages made of plastic with resilient internal securing of the rolling bodies and process for their production
DE29616350U1 (en) Ball joint
EP0524333A1 (en) Hollow body moulding process using a non-metallic soluble core
WO1997041361A1 (en) Ball-and-socket joint
EP1970581B1 (en) Linear roller bearing
EP2035205A1 (en) Process for production of a bearing arrangement and bearing arrangement
DE2948239A1 (en) PLASTIC AND ITS USE
DE8420133U1 (en) Segment cage for roller bearings, especially for cylindrical roller bearings
DE2721900A1 (en) Stable plastic grooved ball bearing cage - with balls locked in position by retaining pieces stiffened with intermediate spacers
DE2450321A1 (en) Plastics ball bearing race is injection moulded - with flexible shape to permit axial withdrawal of undivided core
DE4412131A1 (en) roller bearing
DE2132907A1 (en) Roller bearing cage - of glass fibre stabilised polyamide on metal support

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee