Wheel description
Injection polyurethane tread; hardness 55 Shore D. Polyammide 6 centre.
Hub with ball bearing
Hub with double shielding ball bearing, co-printed in centre (diam. 80-125 mm). Hub with double shielding ball bearings (diam. 150-200 mm).The bearings are protected from dirt, machining residue and corrosive substances by a glass-fibre reinforced polyamide installation bushing with internal labyrinth seal. Diam. 250 mm: hub with shielded ball bearings with interference assembly in the seats obtained by centre moulding.
Axle
Axle composed of ground steel bush with bolt according to UNI EN 24017 and nut according to UNI EN 24032.
Swivel top plate bracket
Swivel top plate bracket. The plate, the ball rice ring and the fork are made of pressed steel zinc plated finish; swivel actions: double ball greased race with dust protection granted by the particular plate configuration. The king pin is integral with the top plate and duly rivetted.