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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 bolt according to UNI EN 24017 and nut according to UNI EN 24032. Fixed bracket type P Fixed bracket type P. The fork is made of pressed steel zinc plated. |