A bearing joint assembly, comprising: a bearing sleeve extending axially along a centerline and including a spherical bearing, a first collar mount and a second collar mount; a first collar wherein a first annular channel is formed by and extends axially between the spherical bearing and the first collar; a first mount mounted on and slidably engaging the spherical bearing; a pair of second mounts (30A,30B), the spherical bearing and the first collar axially between the second mounts (30A,30B); and a fastener projecting through the bearing sleeve and securing the bearing sleeve to the second mounts (30A,30B); wherein: the first collar includes a radial outer collar surface, and at least a portion of the radial outer collar surface tapers radially inwards as the first collar extends axially towards the spherical bearing; a spherical surface of the spherical bearing extends axially between a first end and a second end; and the first end is adjacent the first collar mount and the second end is adjacent the second collar mount; characterised in that: the spherical surface is a radial outer spherical surface with a minimum radius value; and the radial outer collar surface has a maximum radius value that is greater than the minimum radius value of the radial outer spherical surface, wherein the radius values referred to are relative to the centerline; the radial outer spherical surface has a maximum radius value; and the maximum radius value of the radial outer collar surface is greater than the maximum radius of the radial outer spherical surface. a bearing sleeve extending axially along a centerline and including a spherical bearing, a first collar mount and a second collar mount; a first collar wherein a first annular channel is formed by and extends axially between the spherical bearing and the first collar; a first mount mounted on and slidably engaging the spherical bearing; a pair of second mounts (30A,30B), the spherical bearing and the first collar axially between the second mounts (30A,30B); and a fastener projecting through the bearing sleeve and securing the bearing sleeve to the second mounts (30A,30B); wherein: the first collar includes a radial outer collar surface, and at least a portion of the radial outer collar surface tapers radially inwards as the first collar extends axially towards the spherical bearing; a spherical surface of the spherical bearing extends axially between a first end and a second end; and the first end is adjacent the first collar mount and the second end is adjacent the second collar mount; characterised in that: the spherical surface is a radial outer spherical surface with a minimum radius value; and the radial outer collar surface has a maximum radius value that is greater than the minimum radius value of the radial outer spherical surface, wherein the radius values referred to are relative to the centerline; the radial outer spherical surface has a maximum radius value; and the maximum radius value of the radial outer collar surface is greater than the maximum radius of the radial outer spherical surface. the first collar includes a radial outer collar surface, and at least a portion of the radial outer collar surface tapers radially inwards as the first collar extends axially towards the spherical bearing; a spherical surface of the spherical bearing extends axially between a first end and a second end; and the first end is adjacent the first collar mount and the second end is adjacent the second collar mount; characterised in that: the spherical surface is a radial outer spherical surface with a minimum radius value; and the radial outer collar surface has a maximum radius value that is greater than the minimum radius value of the radial outer spherical surface, wherein the radius values referred to are relative to the centerline; the radial outer spherical surface has a maximum radius value; and the maximum radius value of the radial outer collar surface is greater than the maximum radius of the radial outer spherical surface. the spherical surface is a radial outer spherical surface with a minimum radius value; and the radial outer collar surface has a maximum radius value that is greater than the minimum radius value of the radial outer spherical surface, wherein the radius values referred to are relative to the centerline; the radial outer spherical surface has a maximum radius value; and the maximum radius value of the radial outer collar surface is greater than the maximum radius of the radial outer spherical surface.