Do You have damaged wheel on your drawer, and it can not be disassembled? I have solution for you. Internal diameter for axle is 6,3mm. Outer wheel diameter is 18,5mm. Length of 18.5mm wheel is 5mm. Fully length is 7mm. Step files are created with FreeCAD. You must print inner-half twice. This parts you can add on the axle, then put on it outer-full wheel part. Do not worry to use the force :-) It is tight. Outer wheel have cone. Install it with bigger diameter onto two parts on axle. Bigger diameter is on the top, there are 45° edges (at inner and outer diameters) for easiest install. Smaller diameter is on the print plate, there is only one 45° edge, at outer diameter only (I make it so for better identification). My photos can be helpfull for your installation. No glue needed. It holds together very well. I hope you can understand my poor English… Enjoy ;-)