The invention relates to a pivoting support wheel (2), which is aligned and pushed forwards, for a reversible plough (1), said wheel guiding the reversible plough into a determined working position and has self-guiding properties which prevent adverse lateral forces to the plough.

A process and tool for monitoring the status, health, and performance of wear parts used on earth working equipment. The process and tool allow the operator to optimize the performance of the earth working equipment. The tool has a clear line of site to the wear parts during use and may be integrated with a bucket or blade on the earth working equipment.

The invention relates to a cemented carbide material, in particular hard metal, containing 70 to 95 wt % tungsten carbide in dispersed form, and a binder phase, wherein the binder phase comprises metallic binder material and intermetallic phase material, wherein the proportion of metallic binder material in the cemented carbide material is 2 to 28 wt %, wherein the proportion of intermetallic phase material in the cemented carbide material is 2 to 28 wt %, wherein the metallic binder material comprises Co, wherein the intermetallic phase material is formed according to the structural formula (M,Y).sub.3 (Al,X), wherein M=Ni, Y=Co and/or another constituent, and X=tungsten and/or another constituent. Such a cemented carbide material is characterized by particularly good wear resistance.