(19)

(11)

EP 4 577 372 A1

(12)

(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23741922.1 (22) Date of filing: 19.06.2023

(51) International Patent Classification (IPC):  B23B 27/10(2006.01) B23B 27/14(2006.01) (52) Cooperative Patent Classification (CPC): B23B 27/10; B23B 27/14; B23B 2220/445 (86) International application number: PCT/US2023/068677 (87) International publication number: WO 2024/044413 (29.02.2024 Gazette 2024/09)

(84) Designated Contracting States: AL AT 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 Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 22.08.2022 US 202263399904 P (71) Applicant: The Timken Company North Canton, Ohio 44720 (US)	(72) Inventors: ZHANG, Chao Canton, OH 44720 (US) SONG, Xiaozhong Canton, OH 44720 (US) DRERUSSI, Roman Canton, OH 44720 (US) MITCHELL, Randi Canton, OH 44720 (US) ANDERSON, Matthew Canton, OH 44720 (US) (74) Representative: Stevens Hewlett & Perkins  First Floor St Bartholomew's House Lewins Mead Bristol BS1 2NH Bristol BS1 2NH (GB)