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1. (WO2018200324) NON-ELLIPTICAL CONTACT PROFILE FOR ROLLER BEARING

Pub. No.:    WO/2018/200324    International Application No.:    PCT/US2018/028521
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 21 01:59:59 CEST 2018
IPC: F16C 33/36
F16C 33/58
Applicants: THE TIMKEN COMPANY
Inventors: AI, Xiaolan
RHODES, Jerry, P.
Title: NON-ELLIPTICAL CONTACT PROFILE FOR ROLLER BEARING
Abstract:
A roller bearing includes an inner race ring, an outer race ring, and a roller arranged between and in contact with the inner and outer rings. The bearing has a flange (31,131) on the inner race ring at one axial end, and a flange (21,121) on the outer race ring at an opposite axial end. One of the flanges, and/or an end of the roller, includes at least one principal segment (53,153) intermediate two additional segments (52,152;54,154). The principle segment is tangentially blended with the two additional segments, and the principle segment has a first curvature that is different from the respective curvatures of the two additional segments. A non-elliptical contact footprint can be obtained by composite profiles at the contact location between the roller end and the mating flange face.