Internally threaded axle tube and spindle assembly

An axle tube assembly comprising:

• an axle tube body with:
• a first end and a second end;
• and
• internal threads along an interior surface of the axle tube body at the first end and at the second end;
• and
• a bevel along an outer edge of the first end and a bevel along an outer edge of the second end, the bevels oriented such that the axle tube body tapers inward toward the first end and toward the second end;
• a spindle assembly removably connected to the first end of the axle tube body and a spindle assembly removably connected to the second end of the axle tube body, where each spindle assembly comprises:
• a spindle body;
• an exteriorly threaded cylinder extending coaxially outward from the spindle body, where the internal threads of the axle tube body correspond to the exteriorly threaded cylinder such that the spindle body is capable of being secured to the axle body by screwing the exteriorly threaded cylinder into the axle tube body;
• a bevel along an outer edge of the spindle body adjacent the exteriorly threaded cylinder, the bevel oriented such that the spindle body tapers inward toward the outer edge and the bevel forms a V with the bevel of the axle tube body;
• and
• a removable weld in the V formed by the bevel of the spindle body and the bevel of the axle tube body, such that the weld directly connects the spindle body to the axle tube body, where the weld is removable by grinding.