Guide roller

A guide roller configured to guide a wire to or from a work roller in a wire rolling line, the guide roller comprising:

• a rolling-element bearing having an outer ring, an inner ring, and a plurality of rolling elements between the outer ring and the inner ring, the outer ring being rotatable and the inner ring being fixed, the outer ring having a radially outer surface, a profile of the radially outer surface defines a concave recess therein which, when viewed in cross-section, has one of a V-shape and a U-Shape, the concave recess being configured to guide the wire thereon,
• wherein the plurality of rolling elements comprises a first row of rolling elements and a second row of rolling elements,
• wherein the outer ring includes a first raceway and a second raceway, the second raceway being axially spaced from the first raceway, and
• wherein the inner ring includes a third raceway and a fourth raceway, the fourth raceway being axially spaced from the third raceway, wherein the inner ring and the outer ring are each formed by a single, unitary, one-piece component such that relative positions of the first raceway and the second raceway to the third raceway and the fourth raceway are predetermined upon manufacture thereof to facilitate the guide roller having a predetermined preload without requiring subsequent adjustment of the inner ring and/or the outer ring after assembly of the guide roller and thus allowing the guide roller to be installed as a finished component.