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1. (EP3396186) SINTERED OIL-RETAINING BEARING AND PROCESS FOR PRODUCING THE SAME

Office : European Patent Office
Application Number: 16878667 Application Date: 20.12.2016
Publication Number: 3396186 Publication Date: 31.10.2018
Publication Kind : A4
Designated States: AL, AT, BA, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Prior PCT appl.: Application Number:JP2016087885 ; Publication Number: Click to see the data
IPC:
F16C 33/10
F16C 17/02
F16C 33/14
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
02
Parts of sliding-contact bearings
04
Brasses; Bushes; Linings
06
Sliding surface mainly made of metal
10
Construction relative to lubrication
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
17
Sliding-contact bearings for exclusively rotary movement
02
for radial load only
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
02
Parts of sliding-contact bearings
04
Brasses; Bushes; Linings
06
Sliding surface mainly made of metal
14
Special methods of manufacture; Running-in
CPC:
F16C 17/026
F16C 33/104
F16C 33/1065
F16C 33/145
F16C 2202/10
F16C 2202/50
F16C 2220/20
F16C 2220/60
F16C 2240/44
F16C 2360/22
F16C 2202/52
F16C 2204/10
Applicants:
Inventors: KOUNO HAJIME
ISHII YOSHINARI
KATOU JYUN
Priority Data: 2015254810 25.12.2015 JP
2016087885 20.12.2016 JP
Title: (DE) GESINTERTES ÖLRÜCKHALTELAGER UND VERFAHREN ZUR HERSTELLUNG DAVON
(EN) SINTERED OIL-RETAINING BEARING AND PROCESS FOR PRODUCING THE SAME
(FR) PALIER FRITTÉ DE RETENUE D'HUILE ET SON PROCESSUS DE PRODUCTION
Abstract: front page image
(EN) An oil-retaining sintered bearing in which friction coefficient can be reduced and a sliding property as a bearing can be improved by supplying a sufficient amount of oil to a sliding surface and preventing the supplied oil from moving to an interior from the sliding surface; a sliding surface 3 supporting an outer peripheral surface of a shaft and a helical oiling surface 4 around a shaft axis of a bearing hole are adjacently formed on an inner peripheral surface of the bearing hole into which the shaft is inserted; a surface open rate at the sliding surface 3 is not larger than 10%; and a surface open rate at the oiling surface exceeds 10%.
(FR) La présente invention concerne un palier fritté de retenue d'huile dans lequel une surface de glissement (3) pour supporter la surface périphérique extérieure d'un arbre (11) et une surface d'alimentation en huile hélicoïdale (4) centrée autour du centre axial d'un trou (2) pour arbre sont formées adjacentes l'une à l'autre dans la surface périphérique intérieure du trou (2) pour arbre dans lequel l'arbre (11) est introduit, le rapport d'ouverture de surface dans la surface de glissement (3) étant de 10 % ou moins, et le rapport d'ouverture de surface de la surface d'alimentation d'huile (4) dépassant 10 %. La présente invention permet ainsi d'apporter une quantité d'huile suffisante à la surface de glissement (3), de réduire au minimum la quantité d'huile apportée qui se déplace jusqu'à l'intérieur depuis la surface de glissement (3), d'atteindre un faible coefficient de frottement, et d'améliorer la caractéristique de glissement du palier.
Also published as:
JPWO2017110778CN108431436US20190003527WO/2017/110778