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Wheel description Vulkollan polyurethane tread; hardness 93 +/-2 Shore A. Cast iron centre. Ball bearing bore or bore without bearings The housing is obtained by moulding and turning and contains ball bearings series Z. The hub is available also without bearings. 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 EP with adjiustable brake Swivel top plate bracket type EP. The plate and fork are made of forged steel zinc plated finish; swivel actions: taper roller bearing and precision thrust bearing with dust protection made of polyethilene. The king pin is integral with turned and threaded top-plate and fixed with self-locking nut. The adjustable brake locks wheel and top plate rotation. |