TR polyurethane tread; hardness 95 +/-3 Shore A. Cast iron centre.
Ball bearing bore
The housing is obtained by moulding and turning and contains ball bearings series Z.
Axle composed of ground steel bush with bolt according to UNI EN 24017 and nut according to UNI EN 24032.
Swivel top plate bracket EE HD
Swivel top plate bracket type EE HD, with a plate made of forged steel with integrated pin, a fork with two drawn sides electrowelded to the flange, swivel actions made of an axial ball bearing an a taper roller bearing, lubricator and nut anti-loosening system.