Guide rail for rollers ball bearing

I bought an Bambu X1C and I heard it is loud, but I didn't think it was so loud, so I build a cupboard to hide the printer. As a door I decided to make a sliding door with parts from my slaughtered Anycubic Mega X. As rolls I had those roller ball bearings, that moves pretty solid in the rail. Additionally I made some holes to screw them onto the walls of the cupboard. If you don't have roller ball bearings, here is the link to buy one at amazon:https://amzn.eu/d/7WB9Vol