DKS DoorKing 1625-598 Hub Weld Assembly is a sub-assembly that provides the strength and durability to support and rotate heavy gates. This allows for the smooth and powerful operation of a gate operator. Weld on hubs allow plates to be welded to a hub, which offers a quick way to add a taper lock bush option to an assembly. For larger hubs, welding relief is available within the bore to allow for slight distortions.