Abstract: A structural bearing comprising a bottom bearing plate and a top bearing plate, the bearing having sliding surfaces in mutual sliding contact and fixed against horizontal movement relative to the bottom bearing plate and the top bearing plate respectively, one of the bearing plates being provided with one or more spigots engaging in slots in the other bearing plate, the spigot(s) substantially preventing relative rotation of the bearing plates about a vertical axis and substantially preventing relative horizontal movement of the plates in one direction but allowing relative horizontal movement of the plate in a direction normal (i.e. at a right angle) thereto.

Abstract: A modular element for a bridge or structural bearing having metal plates encased within layers of vulcanized rubber is formed in a press including a lower member with at least one post or pin extending upwardly through corresponding holes in the metal plates. A vulcanized rubber plug is inserted and retained in each hole in the modular element after it is removed from the press.