This 6” x 2-1/2” Ductile V Groove wheel is made of a combination of unique alloys that give it greater weight capacities. It is great for heavy-duty guided industrial applications, assembly lines, paint lines, gates and where precise alignment is necessary. Each wheel has a precisely machined 90° V-groove with an alleviation groove which allows load equilibrium. This wheel is also great for guided industrial applications, assembly lines, paint lines, gates and where precise alignment is needed.