Wheel descriptionTR-ROLL polyurethane wheels, hardness 75 Shore A; core made of cast aluminium.
Ball bearing boreThe housing is obtained by moulding and contains ball bearings series Z.
AxleAxle composed of ground steel bush with bolt according to UNI EN 24017 and nut according to UNI EN 24032.
Swivel heavy-duty bracket with hardened ball race grooves PTSwivel bracket made with: - Top Plate: electrolytically colonial galvanised steel plate; Fork: electrolytically colonial galvanised steel plate; Ball Race Ring: electrolytically galvanised steel plate; Dust seal: green polyamide 6; Swivel actions: double ball ring with grease lubrication; Ball race: tempered carbon steel; King pin: steel screw, class 8.8 and nut