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1. (WO2019027011) BALL BEARING
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/027011 International Application No.: PCT/JP2018/029090
Publication Date: 07.02.2019 International Filing Date: 02.08.2018
IPC:
F16C 33/41 (2006.01) ,F16C 19/06 (2006.01) ,F16C 33/66 (2006.01)
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
38
Ball cages
41
comb-shaped
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
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:
小畑 智彦 OBATA Tomohiko; JP
藤原 宏樹 FUJIWARA Hiroki; JP
Agent:
鎌田 直也 KAMADA Naoya; JP
鎌田 文二 KAMADA Bunji; JP
中谷 弥一郎 NAKATANI Yaichiro; JP
Priority Data:
2017-15156004.08.2017JP
Title (EN) BALL BEARING
(FR) ROULEMENT À BILLES
(JA) 玉軸受
Abstract:
(EN) A pocket part (41) of a holding implement (40) has edges (41a, 41b) that are capable of scraping grease (Gr) off from a ball (30) by line contact with the ball (30), which is held in the pocket part (41). The holding implement (40) furthermore has: a grease collector (45) having a shape recessed from the inside diameter (d) of the holding implement (40) toward the outside diameter thereof at a position on the other axial-direction side, relative to a connecting part (42) that continues in a peripheral direction between adjacent pocket parts (41); and a protruding wall part (46) that prevents the grease (Gr) from scattering at a position that is between adjacent pawl parts (43, 44) on one axial-direction side relative to the connecting part (42), and that is on the outside-diameter side of the holding implement (40). Stirring resistance of the grease (Gr) is synergistically minimized on the basis of the edges (41a, 41b) of the pocket part (41), the grease collector (45), and the protruding wall pat (46).
(FR) La présente invention concerne une partie de poche (41) d'un outil de maintien (40) qui présente des bords (41a, 41b) qui sont aptes à racler la graisse (Gr) d'une bille (30) par contact linéaire avec la bille (30), qui est maintenue dans la partie de poche (41). L'outil de maintien (40) comprend en outre: un collecteur de graisse (45) ayant une forme évidée depuis le diamètre intérieur (d) de l'outil de maintien (40) vers le diamètre extérieur de celui-ci à une position sur l'autre côté de direction axiale, par rapport à une partie de liaison (42) qui continue dans une direction périphérique entre des parties de poche adjacentes (41); et une partie de paroi saillante (46) qui empêche la graisse (Gr) de se diffuser à une position qui se trouve entre des parties de cliquet adjacentes (43, 44) sur un côté de direction axiale par rapport à la partie de liaison (42), et qui est sur le côté de diamètre extérieur de l'outil de maintien (40). La résistance à l'agitation de la graisse (Gr) est minimisée de manière synergique grâce aux bords (41a, 41b) de la partie de poche (41), au collecteur de graisse (45) et à la partie de paroi saillante (46).
(JA) 保持器(40)のポケット部(41)は、ポケット部(41)に保持された玉(30)との線接触によって玉(30)からグリース(Gr)を掻き取り可能な縁(41a、41b)を有する。保持器(40)は、隣り合うポケット部(41)間に亘って周方向に連続する繋ぎ部(42)に対して軸方向他方側の位置で保持器(40)の内径(d)から外径側へ凹んだ形状のグリース溜り(45)と、繋ぎ部(42)に対して軸方向一方側で隣り合う爪部(43、44)間の位置かつ保持器(40)の外径側の位置でグリース(Gr)の飛散を防ぐ突壁部(46)とをさらに有する。これらポケット部(41)の縁(41a、41b)、グリース溜り(45)及び突壁部(46)に基づいて、グリース(Gr)の攪拌抵抗を相乗的に抑える。
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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)