The present invention relates to a rolling bearing comprising a first and a second bearing body which are arranged to be rotatable relative to one another about an axis, wherein the bearing bodies comprise first and second bearing rings having running surfaces which face one another and are designed and adapted to receive a plurality of rolling bodies, wherein the rolling bodies are arranged between the running surfaces of the bearing rings, which rolling bearing is characterized in that the bearing rings are designed in multipart form by means of bearing ring segments which are detachable from one another. The invention relates further to a rotary device comprising a fixed axis and a carousel which is arranged to be rotatable about the fixed axis and is to receive items for processing in the fish and meat processing industry, which rotary device is characterized in that the carousel is rotatably arranged on the fixed axis by means of at least one rolling bearing according to any one of claims 1 to 13.