The Cast Iron/Rubber Tyred Phenorex Wheels are pre-fabricated units incorporating the HSC Forged Steel Swivel. N. C. Enterprises offers Cast Iron/Rubber Tyred Phenorex Wheels. N. C. Enterprises is an ISO 9001:2000 accredited company that manufactures standard and specialized light-duty castor, medium-duty castor, heavy-duty castor and extra heavy-duty castor and wheels. The Cast Iron/Rubber Tyred Phenorex Wheels form a high quality component for lift trucks, pallet transporters, mobile conveyors, warehouse trucks, etc. The centre column, tore steering arm or tow bar attachment is 1 1/4" dia. & projects 2 1/4" above the fixing plate in the standard model, but these dimensions may be varied to suit individual requirements.