A SUPPORT WHEEL FOR A TRACK LAYING VEHICLE

摘要

A one-piece support wheel for the track of a track-laying vehicle is formed from molten metal, conveniently an aluminium and/or magnesium alloy, and comprises a disc (10) and a rim (12) wherein the adjacent parts thereof are of T-shaped configuration. The disc is dished and has a centre part (16) extending axially beyond one of the rim edges (18), such edge being protected against wear by the provision of replaceable wear strips or by hard facing. A pair of such wheels are assembled with the centre parts in contact so that the rims are spaced to provide a continuous groove to accommodate the horns on a track.