Spherical plain bearing with lubrication features

A spherical plain bearing comprising:

• an outer ring being coaxial with a longitudinal axis of the bearing, the outer ring having a first axial outer ring end, a second axial outer ring end opposing the first axial outer ring end, and an interior spherical concave bearing surface extending between the first axial outer ring end and the second axial outer ring end;
• an inner ring being coaxial with the longitudinal axis of the bearing, the inner ring having a first axial inner ring end, a second axial inner ring end opposing the first axial inner ring end, an interior cylindrical bearing surface defining a bore extending between the first axial inner ring end and the second axial inner ring end, and an exterior spherical convex bearing surface extending between the first axial inner ring end and the second axial inner ring end, the exterior spherical convex bearing surface being located in interfacial sliding engagement with the interior spherical concave bearing surface of the outer ring;
• a plurality of circumferential lubrication grooves in the exterior spherical convex bearing surface of the inner ring;
• at least one curved lubrication channel in the exterior spherical convex bearing surface of the inner ring, the at least one curved lubrication channel being positioned to intersect each of the plurality of circumferential lubrication grooves;
• and
• a plurality of profiled annular lubrication grooves circumferentially extending in the interior cylindrical bearing surface of the inner ring.