Synchronising Ring For A Synchronising Apparatus, A Friction Lining Blank And Also A Method For The Manufacture Of A Synchronising Ring

摘要

The invention relates to a synchronising ring for a synchronising apparatus of a change speed transmission, including a synchronising ring body with a friction lining, the friction lining being provided in a pre-determinable width between a first axial boundary surface of the friction lining and a second axial boundary surface of the friction lining in the circumferential direction around an axial synchronising ring axis of the synchronising ring on the friction surface, in such a way that the friction lining extends conically at a pre-determinable friction angle alpha about the synchronising ring axis. In this arrangement a macrogeometric groove is provided in the friction lining for the taking up and/or for the transport of a fluid in such a way that a flow connection is created by the macrogeometric groove for the fluid between the first axial boundary surface and the second axial boundary surface. In accordance with the invention the friction lining is completely removed in the region of the macrogeometric groove. The invention further relates to a friction lining blank for the manufacture of a synchronising ring and to a method for the manufacture of a synchronising ring in accordance with the invention.