Wear parts e.g. tooth and adapter, coupling assembly for civil engineering machine, has tooth and adapter arranged by bearing profiled matching shapes arranged symmetrically and in opposite on top and lower faces of adaptor and tooth noses

摘要

The assembly has a tooth (D), and an adapter (A) with a connection through a key (C). The tooth and the adapter are arranged by bearing profiled matching shapes (FA), on different planes, located between their respective contacting ends and connecting ends. The shapes are arranged in a symmetrical and opposite manner on the top face (FS) and lower face (FI) of the adaptor and tooth noses.