Donepart R4-2RS Ball Bearings 1/4 x 5/8 x 0.196 inch C3 High Speed Double Sealed and Lubricated Bearings for Motor, Wheels, Bike, Pool Pump, Spinners (10 Pack): Amazon.com: Industrial & Scientific
Amazon.fr : SKF - Roulement a Billes 6003-2RS-SKF - 17x35x10 mm