
LOW-FRICTION PLASTIC BEARING SET
These bearings are molded in low-friction plastic for efficient, smooth rotation. ★620 (6mm outer diameter, 2mm inner) size components are for use with Mini 4WD car hex shafts. ★520 (5mm outer diameter, 2mm inner) size components are for use with Mini 4WD PRO car counter gears. ★Contains five 620 and two 520 plastic bearings.