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1. (WO2018202232) COATING SYSTEM FOR A UNIVERSAL JOINT BUSH

Pub. No.:    WO/2018/202232    International Application No.:    PCT/DE2018/100287
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Thu Mar 29 01:59:59 CEST 2018
IPC: F16D 3/38
Applicants: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Inventors: KRUPPA, Martin
Title: COATING SYSTEM FOR A UNIVERSAL JOINT BUSH
Abstract:
The invention relates to a universal joint bush (1) intended for a universal joint (20) of a universal joint shaft. The universal joint bush (1) comprises a pot-shaped form (G) having an inside (I) and an outside (A), the pot-shaped form (G) being formed by a bottom element (2) and a side wall element (3), the side wall element (3) having the shape of a hollow cylinder and comprising an outer lateral surface (AM) and an inner lateral surface (IM) and a first end face (4) and a second end face (5), the bottom element (2) comprising a bottom outer face (AS) and a bottom inner face (IS), both or one of the end faces (4, 5) having an edge element (6, 7), which forms a transition of the side wall element (3) to an end face (4, 5), and an anti-corrosion coating (B) being applied on the outside (A) of the pot-shaped form (G). The coating (B) has a larger layer thickness on the edge element (6, 7) than on the outer lateral surface (AM) of the side wall element (3) and/or than on the bottom outer face (AS) of the bottom element (2).