
thumb|Rear (driven) bicycle sprockets. Left, new, shows no wear. Right, used, shows obvious wear from being driven clockwise.
thumb|Rear (driven) bicycle sprockets. Left, new, shows no wear. Right, used, shows obvious wear from being driven clockwise.
Wear is the damaging, gradual removal or deformation of material at solid surfaces. Causes of wear can be mechanical (e.g., erosion) or chemical (e.g., corrosion). The study of wear and related processes is referred to as tribology.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).