In this schematic the "Bearing" is used most often.
The nine Yq50 Aerox 2003 5wj1 Germany 1b5wj-300sb Front Wheel component parts are all listed in this schematic.
A sample from the products for the Front Wheel include: Oil Seal (20x35x7-122), Air Valve Assy, Gear Unit Assy, Bearing.