EP2454497A2 - Spritzgegossener wälzlagerkäfig aus einem faserverstärkten, thermoplastischen kunststoff - Google Patents
Spritzgegossener wälzlagerkäfig aus einem faserverstärkten, thermoplastischen kunststoffInfo
- Publication number
- EP2454497A2 EP2454497A2 EP10730474A EP10730474A EP2454497A2 EP 2454497 A2 EP2454497 A2 EP 2454497A2 EP 10730474 A EP10730474 A EP 10730474A EP 10730474 A EP10730474 A EP 10730474A EP 2454497 A2 EP2454497 A2 EP 2454497A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling bearing
- bearing cage
- cage according
- fibers
- group
- 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- Withdrawn
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 62
- 239000000835 fiber Substances 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 229920005992 thermoplastic resin Polymers 0.000 title 1
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 229920002530 polyetherether ketone Polymers 0.000 claims description 18
- 239000004033 plastic Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 14
- -1 PEEKEK Polymers 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 239000004697 Polyetherimide Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 7
- 229920001601 polyetherimide Polymers 0.000 claims description 7
- 239000004760 aramid Substances 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 4
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 239000000454 talc Substances 0.000 claims description 4
- 229910052623 talc Inorganic materials 0.000 claims description 4
- 235000012222 talc Nutrition 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004695 Polyether sulfone Substances 0.000 claims description 2
- 239000004113 Sepiolite Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910001588 amesite Inorganic materials 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- VNSBYDPZHCQWNB-UHFFFAOYSA-N calcium;aluminum;dioxido(oxo)silane;sodium;hydrate Chemical compound O.[Na].[Al].[Ca+2].[O-][Si]([O-])=O VNSBYDPZHCQWNB-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000002734 clay mineral Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 2
- 229910052627 muscovite Inorganic materials 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 150000002826 nitrites Chemical class 0.000 claims description 2
- 229910000273 nontronite Inorganic materials 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 229910052615 phyllosilicate Inorganic materials 0.000 claims description 2
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 2
- 229920001655 poly(etheretheretherketone) Polymers 0.000 claims description 2
- 229920001660 poly(etherketone-etherketoneketone) Polymers 0.000 claims description 2
- 229920001652 poly(etherketoneketone) Polymers 0.000 claims description 2
- 229920006260 polyaryletherketone Polymers 0.000 claims description 2
- 229920006393 polyether sulfone Polymers 0.000 claims description 2
- 229910000275 saponite Inorganic materials 0.000 claims description 2
- 229910052624 sepiolite Inorganic materials 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- 125000005624 silicic acid group Chemical class 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 229910021647 smectite Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 229920002873 Polyethylenimine Polymers 0.000 claims 2
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 claims 1
- 239000012815 thermoplastic material Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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
- F16C33/38—Ball cages
- F16C33/44—Selection of substances
-
- 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
- F16C33/38—Ball cages
- F16C33/41—Ball cages comb-shaped
- F16C33/412—Massive or moulded comb cages, e.g. snap ball cages
- F16C33/414—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages
- F16C33/416—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages made from plastic, e.g. injection moulded comb 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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/22—Thermoplastic resins comprising two or more thermoplastics
-
- 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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/36—Polyarylene ether ketones [PAEK], e.g. PEK, PEEK
-
- 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
Definitions
- the invention relates to a rolling bearing cage made of a fiber composite material comprising a thermoplastic material with fibers embedded therein.
- Rolling bearing cages of this type are components of rolling bearings for rotating at high speed devices that are used for example in medical technology.
- a typical field of application is dental instruments in which an air turbine is used to drive a rotor shaft on which a dental tool is located.
- the bearings used for the storage of the air turbine are operated at speeds from 200,000 rev / min to 500,000 rev / min, accordingly, very high centrifugal forces occur, which make extreme demands on the components and materials used.
- dental instruments are regularly sterilized in autoclaves at elevated temperature and elevated pressure, whereby the rolling bearing is also loaded.
- rolling bearing cages are also used in other maintenance-free bearings, which are operated at very high speeds.
- roller bearing cages of this type are also used in spindle bearings.
- rolling bearing cages may consist of polyimide resin or of phenolic resin with embedded fiber layer. In this construction, however, there is a risk that water is absorbed by the resin.
- roller bearing cage which consists of polyphenylene sulfide resin (PPS resin) and should have good resistance to heat, oil and chemicals.
- PPS resin polyphenylene sulfide resin
- other materials are proposed for the roller bearing cage, for example polyamide, polyacetal, polybutylene terephthalate. These plastics can be used either alone or as a fiber composite material by being reinforced by glass fibers or carbon fibers (carbon fibers).
- the invention is therefore based on the object to provide a roller bearing cage made of a fiber composite material, which can be used at very high speeds and at the same time inexpensive to produce.
- a rolling bearing cage of the type mentioned that it is made by injection molding By inventively provided injection molding of the thermoplastic material with the fibers embedded therein, the rolling bearing cage can be made particularly efficient and inexpensive.
- the rolling bearing cage according to the invention is characterized by a good high temperature resistance, low water absorption and a good dimensional stability.
- the rolling bearing cage is resistant to organic and inorganic chemicals.
- the plastic material is selected from the group consisting of polyetheretherketone (PEEK), polyphenylene sulphide (PPS), polyethersulphone (PES), polyetherimide (PEI), and liquid crystal polymers (LCP).
- PES polyphenylene sulphide
- PES polyethersulphone
- PEI polyetherimide
- LCP liquid crystal polymers
- the roller bearing cage according to the invention consists of a plastic material which comprises at least one of the following mixtures: PEEK and PES, PEEK and PPS, PEEK and PEI.
- PEEK is used in this application as a generic term for polyetheretherketones, which also include the following PEEK derivatives: PEK, PEEEK, PEEKEK, PEKEKK, PAEK or PEKK.
- PEEK derivatives can also be used as plastic material for the roller bearing cage, either as a single plastic material or in a tion, for example with PES, PPS or PEI. If a mixture of at least two different plastic materials is used, the material properties can be specifically influenced in order to adapt them to the technical requirements which the rolling bearing cage according to the invention has to fulfill.
- the fibers may be selected from the group consisting of glass fibers, carbon fibers (carbon fibers), aramid fibers and PTFE fibers.
- Each of these fibers has certain advantageous properties, for example glass and, to an even greater extent, carbon fibers have high rigidity when bonded to the thermoplastic plastics material as a matrix to form a fiber composite.
- Aramid fibers in turn have a high toughness, so that the emergency running properties of the rolling bearing cage can be improved.
- PTFE fibers increase runflat performance as they act as a solid lubricant.
- Embodiments of the roller bearing cage according to the invention are also conceivable in which at least two different fiber types are used.
- glass fibers can be combined with aramid fibers, as could carbon fibers combined with aramid fibers.
- a combination of glass fibers with PTFE fibers is conceivable.
- the proportion of fibers relative to the mass of the roller bearing cage can be 5 to 50%, and it is particularly preferred if the proportion is 10 to 20%.
- the rolling bearing cage contains at least one solid lubricant selected from the group comprising polytetrafluoroethylene (PTFE), graphite and molybdenum sulfide.
- PTFE polytetrafluoroethylene
- These solid lubricants improve runflat properties when the conventional lubricant, such as a grease or an oil, is not available in sufficient quantity.
- the plastic material may contain one or more fillers selected from the group consisting of: carbon black, graphite, nanoscale fillers from the group of oxides, hydrated oxide, hydroxide, carbonate, nitrates or nitrites of an element the element is selected from the group comprising boron, aluminum, barium, magnesium, calcium, gallium, indium, silicon, germanium, tin, titanium, zirconium, zinc, yttrium or iron.
- fillers selected from the group consisting of: carbon black, graphite, nanoscale fillers from the group of oxides, hydrated oxide, hydroxide, carbonate, nitrates or nitrites of an element the element is selected from the group comprising boron, aluminum, barium, magnesium, calcium, gallium, indium, silicon, germanium, tin, titanium, zirconium, zinc, yttrium or iron.
- the nanoscale filler may be selected from the following group: synthetic or natural phyllosilicates, clay minerals such as allevardite, amesite, beidellite, bentonite, feldspar, fluorhectoet, fluoro vermiculite, mica, halloysite, hectorite, kaolin, montmohllonite, muscovite, nontronite , Palygorskite, saponite, sepiolite, smectite, stevensite, talc, vermicullite and synthetic talcum types, as well as the alkali silicates maghemite, magadiite, kenyaite, makatite, silinaite, grumantite, revdite and their hydrated forms and the crystalline silicic acids.
- synthetic or natural phyllosilicates clay minerals such as allevardite, amesite, beidellite, bentonite, feldspar, fluorhec
- the nanoscale filler can be selected from the following group: inorganic layer compounds such as hydrotalcites, double hydroxides and heteropolyacids.
- the proportion of the filler or fillers may be up to 20% of the mass of the rolling bearing cage in the rolling bearing cage according to the invention.
- FIG. 1 shows a first embodiment of a device according to the invention
- Fig. 2 shows a second embodiment of an inventive
- the rolling bearing cage 1 shown in Fig. 1 has an annular basic shape, in computersssechtung circular recesses 2 are provided, in each of which a spherical rolling elements can be held and guided, such rolling bearing cages 1 are referred to as a window cage.
- the rolling bearing cage 1 shown in Fig. 1 consists of polyetheretherketone (PEEK) with embedded glass fibers, so that a fiber composite material is present. The proportion by weight of the glass fibers is 10% in the illustrated embodiment.
- the rolling bearing cage 1 is manufactured by injection molding.
- polytetrafluoroethylene (PTFE) is contained as a solid lubricant with a weight fraction of 5%.
- the rolling bearing cage 1 kaolin, titanium dioxide and aluminum oxide as nanoscale fillers with a weight fraction of 3%.
- the window cage is manufactured in the thermoplastic injection molding with forced removal, whereby even complex geometries can be produced in a single process step, without a machining reworking is required.
- the rolling bearing cage 3 consists of a blend of the plastic materials PEEK and PES (polyethersulfone). In addition, 10% carbon fibers and 10% aramid fibers, based on the mass of the rolling bearing cage 3, are included.
- the rolling bearing cage 3 has for lubrication molybdenum disulfide as a solid lubricant in a proportion of 5 weight percent.
- Nanoscale fillers are calcium carbonate and zinc sulfide in an amount of 5% by weight.
- the rolling bearing cage 3 is produced in the thermoplastic injection molding process with forced removal, a subsequent machining is not required.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009032961A DE102009032961A1 (de) | 2009-07-14 | 2009-07-14 | Wälzlagerkäfig |
| PCT/EP2010/059960 WO2011006856A2 (de) | 2009-07-14 | 2010-07-12 | Wälzlagerkäfig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2454497A2 true EP2454497A2 (de) | 2012-05-23 |
Family
ID=43382769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10730474A Withdrawn EP2454497A2 (de) | 2009-07-14 | 2010-07-12 | Spritzgegossener wälzlagerkäfig aus einem faserverstärkten, thermoplastischen kunststoff |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2454497A2 (de) |
| DE (1) | DE102009032961A1 (de) |
| WO (1) | WO2011006856A2 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011007495A1 (de) * | 2011-04-15 | 2012-10-18 | Aktiebolaget Skf | Wälzlagerkäfig und Verfahren zum Herstellen eines Wälzlagerkäfigs |
| DE102013225339A1 (de) | 2013-12-10 | 2015-06-11 | Schaeffler Technologies AG & Co. KG | Wälzlagerkäfig |
| DE102013225996A1 (de) * | 2013-12-16 | 2015-06-18 | Schaeffler Technologies AG & Co. KG | Kunststoff-Wälzlagerkäfig für ein Axiallager und Axiallager |
| DE102013225998A1 (de) * | 2013-12-16 | 2015-06-18 | Schaeffler Technologies AG & Co. KG | Kunststoff-Wälzlagerkäfig für ein Radiallager und Radiallager |
| DE102013225995A1 (de) * | 2013-12-16 | 2015-06-18 | Schaeffler Technologies AG & Co. KG | Kunststoff-Wälzlagerkäfig für ein Schrägkugellager und Schrägkugellager |
| DE102016217155A1 (de) | 2016-09-08 | 2018-03-08 | Rolls-Royce Deutschland Ltd & Co Kg | Wälzlagerkäfig, ein Verfahren zur Herstellung eines Wälzlagerkäfigs und ein Wälzlager |
| DE102016124430A1 (de) | 2016-12-15 | 2018-06-21 | Schaeffler Technologies AG & Co. KG | Wälzlagerkäfig |
| DE102017115881A1 (de) * | 2017-05-10 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Wälzlagerkäfig |
| DE102017128521A1 (de) | 2017-12-01 | 2019-06-06 | Schaeffler Technologies AG & Co. KG | Planetenwälzgetriebe |
| DE102019207621A1 (de) * | 2019-05-24 | 2020-11-26 | MTU Aero Engines AG | Verfahren zur herstellung eines bauteils aus einem keramischen faserverbundwerkstoff mit modifizierter gleit-oder reibfläche |
| CN110748570A (zh) * | 2019-11-05 | 2020-02-04 | 蒋立宪 | 一种碳纤维作嵌料注塑成型的机械密封用轴承座压盖 |
| DE102021203984A1 (de) | 2021-04-21 | 2022-10-27 | Minebea Mitsumi Inc. | Wälzlagerkäfig für ein sterilisationsbeständiges Wälzlager und Verfahren zum Herstellen eines solchen Wälzlagerkäfigs |
| CN116656067A (zh) * | 2023-06-02 | 2023-08-29 | 沈阳工业大学 | 一种适用于机床导轨滑座的复合材料及其制备方法 |
| US12429091B2 (en) | 2023-08-29 | 2025-09-30 | Aktiebolaget Skf | Separator for rolling element bearings |
| US20250075739A1 (en) * | 2023-08-29 | 2025-03-06 | Aktiebolaget Skf | Cage for rolling element bearings |
| DE102024129988A1 (de) * | 2024-10-16 | 2026-04-16 | Schaeffler Technologies AG & Co. KG | Set an Kugellagern |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3890466T1 (de) | 1987-06-04 | 1989-05-24 | Nippon Seiko Kk | Kunststoffhalter fuer ein lager |
| US5590225A (en) * | 1987-06-04 | 1996-12-31 | Nippon Seiko Kabushiki Kaisha | Plastic holder for bearing |
| JPH0788853B2 (ja) * | 1990-07-16 | 1995-09-27 | 株式会社安川電機 | ころがり軸受 |
| JP3016735B2 (ja) | 1996-10-01 | 2000-03-06 | 昌 松井 | 高速回転機器の転がり軸受装置 |
| EP0992696B1 (de) * | 1997-07-01 | 2007-02-28 | JTEKT Corporation | Lagerkäfig aus synthetischem harz sowie herstellungsverfahren und rollenlager |
| JPH11264418A (ja) * | 1998-03-18 | 1999-09-28 | Ntn Corp | 転がり軸受用保持器 |
| JP2002295479A (ja) * | 2001-03-29 | 2002-10-09 | Koyo Seiko Co Ltd | 軸受用保持器 |
| DE102004029729A1 (de) * | 2004-06-21 | 2006-01-19 | Ticona Gmbh | Wälzlager |
| EP1790866A4 (de) * | 2004-08-18 | 2008-09-10 | Jtekt Corp | Lagerhalterung |
| DE102005051914B4 (de) * | 2005-10-29 | 2008-02-21 | Ab Skf | Käfig für ein Wälzlager |
-
2009
- 2009-07-14 DE DE102009032961A patent/DE102009032961A1/de not_active Ceased
-
2010
- 2010-07-12 WO PCT/EP2010/059960 patent/WO2011006856A2/de not_active Ceased
- 2010-07-12 EP EP10730474A patent/EP2454497A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011006856A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011006856A3 (de) | 2011-03-31 |
| WO2011006856A2 (de) | 2011-01-20 |
| DE102009032961A1 (de) | 2011-01-20 |
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