Abstract: A sleeve bearing (20) having an outer cylindrical surface concentric to a center (24) and an inner bearing surface for surrounding a cylindrical journaled member (26) in closed spaced relationship. The inner bearing surface has oppositely disposed first (28) and second (30) crown surfaces which are divided by a dividing diameter (A) and first clearance surfaces (32) extending circumferentially from opposite extremities of the first crown surface (28) and second clearance surfaces (34) extending circumferentially from opposite extremities of the second crown surface (30) and intersecting the first clearance surfaces (32). The crown surfaces (28, 30) extend circumferentially on a first radius (r) which closely approximates the radius of the journaled member (26). The clearance surfaces (32, 34) extend circumferentially on a second radius (r') which is greater than the first radius (r).

Abstract: A sleeve bearing for a split-angle connecting rod having a bearing surface including two opposed portions wherein the first portion is concentric with the journaled member during the loaded portion of a revolution and is defined by a constant radius which closely approximates the radius of the journaled member to provide a relatively small clearance with the journaled member and the second portion is eccentric with respect to the journaled member and is defined by at least one radius to provide a greater clearance with the journaled member.