Bushing for oil film bearing

摘要

A bushing (20) has a cylindrical wall with an inner bearing surface (21) configured and dimensioned to surround the journal surface of a roll neck (14) in a rolling mill (10). The bearing surface (21) has a primary recess (26) into which oil is admitted to serve as a lubricant between the journal and bearing surfaces. The primary recess (26) has a width (W1) measured between circumferentially spaced edges (30), and a length spaced from the ends (32) of the bearing surface (21) by land segments (34) of the bearing surface (21). Secondary recesses (36) in the land segments (34) have widths (W2) that are narrower than the width (W1) of the primary recess (26).