tube roller(s) for a welding table with 3D printed stand

This is my design for a tuberoller to use on a welding table, on the rollers will surely fit the diameters of 15 to 219 mm tubes without issues, the rollers have bearings in them. The stand, rollers, collars and inserts for the table holes can be 3D FDM printed. The stand can handle some pretty weight and keep rolling smoothly.

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