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1. (WO2019024958) PROCESS FOR MANUFACTURING A ROLLING BEARING COMPONENT MADE OF STEEL, AND ROLLING BEARING COMPONENT MADE THEREBY
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Pub. No.: WO/2019/024958 International Application No.: PCT/DE2018/100661
Publication Date: 07.02.2019 International Filing Date: 23.07.2018
IPC:
F16C 19/00 (2006.01) ,F16C 33/64 (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
19
Bearings with rolling contact, for exclusively rotary movement
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
58
Raceways; Race rings
64
Special methods of manufacture
Applicants:
SCHAEFFLER TECHNOLOGIES AG & CO. KG [DE/DE]; Industriestraße 1-3 91074 Herzogenaurach, DE
Inventors:
BLASS, Toni; DE
TROJAHN, Werner; DE
DINKEL, Markus; DE
Priority Data:
10 2017 117 483.402.08.2017DE
Title (EN) PROCESS FOR MANUFACTURING A ROLLING BEARING COMPONENT MADE OF STEEL, AND ROLLING BEARING COMPONENT MADE THEREBY
(FR) PROCÉDÉ DE FABRICATION D'UN COMPOSANT DE PALIER À ROULEMENT EN ACIER ET COMPOSANT DE PALIER À ROULEMENT AINSI FABRIQUÉ
(DE) VERFAHREN ZUR HERSTELLUNG EINER WÄLZLAGERKOMPONENTE AUS STAHL UND DADURCH HERGESTELLTE WÄLZLAGERKOMPONENTE
Abstract:
(EN) Disclosed is a process for manufacturing a rolling bearing component made of steel, wherein a processed blank withdrawn from the forging heat is cooled in such a way as to have a structure containing at least 80% bainite, whereupon the blank is nitrided at a temperature ≥ 500°C until a nitriding depth of at least 0.2 mm has been reached.
(FR) L'invention concerne un procédé de fabrication d'un composant de palier à roulement en acier, selon lequel une ébauche usinée est refroidie à partir de la chaleur de forgeage de telle sorte qu'elle présente une structure ayant une fraction de bainite d'au moins 80 %, après quoi l'ébauche est nitrurée à une température ≥ 500°C jusqu'à ce qu'une profondeur de nitruration d'au moins 0,2 mm soit atteinte.
(DE) Verfahren zur Herstellung einer Wälzlagerkomponente aus Stahl, wobei ein bearbeiteter Rohling aus der Schmiedehitze derart abgekühlt wird, dass er ein Gefüge mit einem Bainitanteil von wenigstens 80% aufweist, wonach der Rohling bei einer Temperatur ≥ 500°C nitriert wird, bis eine Nitriertiefe von wenigstens 0,2 mm erreicht ist.
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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, 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, JP, 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: German (DE)
Filing Language: German (DE)