Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019049963) GREASE COMPOSITION AND GREASE-ENCLOSED ROLLER BEARING
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/049963 International Application No.: PCT/JP2018/033131
Publication Date: 14.03.2019 International Filing Date: 07.09.2018
IPC:
C10M 169/02 (2006.01) ,F16C 19/06 (2006.01) ,F16C 33/66 (2006.01) ,C10M 105/18 (2006.01) ,C10M 107/02 (2006.01) ,C10M 115/08 (2006.01) ,C10N 20/02 (2006.01) ,C10N 30/00 (2006.01) ,C10N 40/02 (2006.01) ,C10N 50/10 (2006.01)
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
169
Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
02
Mixtures of base-materials and thickeners
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
19
Bearings with rolling contact, for exclusively rotary movement
02
with bearing balls essentially of the same size in one or more circular rows
04
for radial load mainly
06
with a single row of balls
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33
Parts of bearings; Special methods for making bearings or parts thereof
30
Parts of ball or roller bearings
66
Special parts or details in view of lubrication
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
105
Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
08
containing oxygen
18
Ethers, e.g. epoxides
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
107
Lubricating compositions characterised by the base-material being a macromolecular compound
02
Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
115
Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof
08
containing nitrogen
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
N
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M59
20
Specified physical properties of component of lubricating compositions
02
Viscosity; Viscosity index
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
N
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M59
30
Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
N
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M59
40
Specified use or application for which the lubricating composition is intended
02
Bearings
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
N
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M59
50
Form in which the lubricant is applied to the material being lubricated
10
semi-solid; greasy
Applicants:
NTN株式会社 NTN CORPORATION [JP/JP]; 大阪府大阪市西区京町堀1丁目3番17号 3-17, Kyomachibori 1-chome, Nishi-ku, Osaka-shi, Osaka 5500003, JP
Inventors:
伊藤 元博 ITO Motohiro; JP
Agent:
和気 光 WAKI Hikaru; JP
和気 操 WAKI Misao; JP
Priority Data:
2017-17340608.09.2017JP
Title (EN) GREASE COMPOSITION AND GREASE-ENCLOSED ROLLER BEARING
(FR) COMPOSITION DE GRAISSE ET ROULEMENT À ROULEAUX REMPLI DE GRAISSE
(JA) グリース組成物およびグリース封入転がり軸受
Abstract:
(EN) The purpose of the present invention is to provide a grease composition with which it is possible to suppress the occurrence of noise when cold, even under extremely low temperature conditions below -20°C. A grease composition 7 includes a base oil comprising a mixed oil of an ether oil and a poly-α-olefin oil, and a thickener; the ether oil having a kinetic viscosity at 40°C of 20-40 mm2/s; the poly-α-olefin oil being included in an amount of 20-40% by mass of the overall base oil and having a kinetic viscosity at 40°C of 30-50 mm2/s, or being included in an amount of 10-40% by mass of the overall base oil and having a kinetic viscosity at 40°C of at least 5 mm2/s and less than 30 mm2; and the thickener being an alicyclic diurea compound and being included in an amount of at least 10% by mass and less than 18% by mass in relation to the total amount of the base oil and the thickener.
(FR) La présente invention vise à fournir une composition de graisse permettant de supprimer l'apparition de bruit à froid, même dans des conditions de températures extrêmement basses inférieures -20 °C. La présente invention concerne par conséquent une composition de graisse (7) qui comprend une huile de base comprenant une huile mixte d'une huile d'éther et d'une huile de poly-α-oléfine, et un épaississant ; l'huile d'éther ayant une viscosité cinétique à 40 °C de 20 à 40 mm2/s ; l'huile de poly-α-oléfine étant comprise en une quantité de 20 à 40 % en masse de l'huile de base globale et ayant une viscosité cinétique à 40 °C de 30 à 50 mm2/s, ou étant comprise en une quantité de 10 à 40 % en masse de l'huile de base globale et ayant une viscosité cinétique à 40 °C d'au moins 5 mm2/s et inférieure à 30 mm2 ; et l'épaississant étant un composé de diurée alicyclique et étant inclus dans une quantité d'au moins 10 % en masse et inférieure à 18 % en masse par rapport à la quantité totale de l'huile de base et de l'épaississant.
(JA) -20℃よりもさらに低い超低温条件下であっても、冷時異音の発生を抑制することができるグリース組成物を提供することを目的とする。グリース組成物7は、エーテル油およびポリ-α-オレフィン油の混合油からなる基油と、増ちょう剤とを含み、エーテル油は、40℃における動粘度が20~40mm2/sであり、ポリ-α-オレフィン油が、このポリ-α-オレフィン油の40℃における動粘度が30~50mm2/sであり、基油全体に対して20~40質量%含まれるか、または、このポリ-α-オレフィン油の40℃における動粘度が5mm2/s以上30mm2/s未満であり、基油全体に対して10~40質量%含まれ、増ちょう剤は、脂環式ジウレア化合物であり、基油と増ちょう剤との合計量に対して10質量%以上18質量%未満含まれる。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)