Amazon.com: Traxxas 5114 Ball Bearings 5x8x2.5mm : Toys & Games
Akozon Ball Bearing 10Pcs Metal Shielded Deep Groove Ball Bearing Double Shielded Miniature Ball Bearing 5x8x2.5 mm MR85ZZ for 3D Printer and model making : Amazon.de: Business, Industry & Science