Track roller

A self-lubricating track roller made by providing an inner ring having a radially outwardly facing surface, applying a parting agent onto the radially outwardly facing surface of the inner ring, applying a self-lubricating material over the radially outwardly facing surface of the inner ring, forming an outer ring around the self-lubricating material by wrapping resin soaked filaments around the self-lubricating material and curing the resin soaked filaments such that a radially inwardly facing surface of the outer ring bonds to the self-lubricating material, and bonding a resilient tire onto a radially outwardly facing surface of the outer ring, the self-lubricating track roller comprising a surface profile on the radially outward facing surface of the inner ring that corresponds to a mating surface profile of the self-lubricating material to prevent entry of contaminants into a sliding interface between the inner ring and the self-lubricating material, wherein said mating surface profile is defined by one of the radially inwardly facing surface of the outer ring and the radially outwardly facing surface of the inner ring including a radial groove formed between axially extending cylindrical surfaces of one of the outer ring and the inner ring, and the other of the radially inwardly facing surface of the outer ring and the radially outwardly facing surface of the inner ring having a radial ridge formed between axially extending cylindrical surfaces of the other of the outer ring and the inner ring, said radial ridge extending radially into the radial groove to resist axial forces acting on the outer ring and the inner ring, said radial groove and radial ridge being formed between the axially extending cylindrical surfaces of the inner and outer rings to resist radial forces acting on the outer ring and inner ring.

A self-lubricating track roller comprising:

• an inner ring having a radially outwardly facing surface;
• an outer ring having a radially outwardly facing surface and a radially inwardly facing surface;
• a self-lubricating material bonded to the radially inwardly facing surface of the outer ring such that the outer ring slidably surrounds the radially outwardly facing surface of the inner ring;
• a resilient tire bonded to the outer surface of the outer ring;
• and
• wherein the outer ring includes cured resin soaked filaments wrapped around the self-lubricating material and wherein the radially outwardly facing surface of the inner ring has a surface profile that corresponds to a mating surface profile of the self-lubricating material at a sliding interface, said mating surface profile being defined by one of the radially inwardly facing surface of the outer ring and the radially outwardly facing surface of the inner ring including a radial groove formed between axially extending cylindrical surfaces of one of the outer ring and the inner ring, and the other of the radially inwardly facing surface of the outer ring and the radially outwardly facing surface of the inner ring having a radial ridge formed between axially extending cylindrical surfaces of the other of the outer ring and the inner ring, said radial ridge extending radially into the radial groove to resist axial forces acting on the outer ring and the inner ring, said radial groove and radial ridge being formed between the axially extending cylindrical surfaces of the inner and outer rings to resist radial forces acting on the outer ring and inner ring.