Abstract: An angle dozer assembly including a C-frame supported by a tractor. A pair of thrust members extend rearwardly from a moldboard and each terminates with a carriage which is slidable along the C-frame and adapted to be maintained in different positions by a locking fork arrangement.

Abstract: A roller frame support arrangement for a crawler tractor that includes a hub member secured to the roller frame and having a bore formed therein for receiving one end of an axle shaft. Bushing means are located in the bore and are interposed between the hub member and the axle shaft for absorbing radially directed loading. In addition, the hub member is formed with a radially extending flange located at its outer end that accommodates a disk-type plate fastened to the axle shaft. The disk-type plate has a pair of laterally spaced bearing surfaces for absorbing thrust loads imposed upon the roller frame. An end cap is secured to the flange and together with the latter provides a pair of bearing surfaces for engaging the disk-type plate.

Abstract: A roller frame for a crawler tractor for supporting the body portion of the tractor and including a pair of laterally spaced and parallel side rail members rigidly interconnected to form an elongated unitary member. Each of the side rail members have an upper edge and a lower edge with the latter having at least two generally U-shaped cut-out portions formed therein so as to provide a front support surface, an intermediate support surface, and a rear support surface. A plurality of rollers are adapted to be supported in each of the cut-out portions and a shield extends between each adjacent pair of support surfaces and is fastened thereto so as to enclose the lower portions of the rollers and prevent rocks and the like from gaining access into the roller frame.