Answer
Galling is a form of adhesive wear that occurs when two metal surfaces (the ring and the installation tool/shaft) slide against each other under high pressure, causing localized welding and tearing of the surface. Stainless steels (302, 316) are particularly prone to this due to their protective oxide layer, which, when broken, exposes highly reactive metal. Solutions include: 1) Using a dissimilar metal for the installation tool (e.g., Ampco 18 bronze); 2) Applying an extreme-pressure (EP) lubricant; or 3) Using a 'Hard Chrome' or 'DLC' (Diamond-Like Carbon) coating on the installation mandrel to reduce friction and surface energy.