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Wheel description Injection polyurethane tread; hardness 60 Shore D. Polyammide 6 centre. Plain bearing bore The plain bearing bore results from a hole in the material forming the centre of the wheel and contains the axle. Axle Axle composed of ground steel bush with bolt according to UNI EN 24017 and nut according to UNI EN 24032. Scaffolding bracket double pedal, unthreaded stem Swivel bracket with stem for mobile scaffoldings. The plate, the ball rice ring and the fork are made of pressed steel zinc plated finish. In brackets for wheels diameter 125 and 150, the swivel actions are made of a grease-lubrificated double ball raceways. In brackets for wheels diameter 200, the swivel actions are made of a single direction axial bearing and a grease-lubrificated single ball raceway. In brackets for wheels diameter 150 and 200, the king pin is made of an unthreaded stem in steel and nut locked by mechanical deformation. For brackets diameter 125, the king pin is cold-headed unthreaded stem. |