Product Description
Poly Molded On Hub
Frequently Asked Questions
Q: What is a poly molded-on hub design, and why would I choose it?
A: Poly molded-on hub construction means the polyurethane tread is permanently bonded (molded) directly onto the hub core during manufacturing, rather than installed as a separate component. This creates a single unified wheel with superior tread-to-hub adhesion, eliminating risk of tread separation during use. Molded wheels are ideal for high-cycle and demanding applications where wheel failure cannot be tolerated.
Q: Is the SU S914-XL wheel a replacement wheel or a complete assembly?
A: The SU S914-XL is supplied as a complete wheel assembly with the polyurethane tread permanently molded onto its hub. It is a direct replacement for existing wheels of the same size and bore specification. Confirm your truck requires an XL (extended or wider) wheel before ordering; the XL dimensions may not fit all equipment models.
Q: Can the tread on a SU S914-XL molded wheel be re-surfaced or replaced without replacing the entire wheel?
A: No. Because the polyurethane is molded directly onto the hub during manufacturing, it cannot be separated or replaced. Once the tread is worn below service limits or damaged, the entire wheel assembly must be discarded and replaced. This is the primary cost difference between molded and replaceable-tread wheels.
Q: What are the advantages of choosing a molded wheel like the SU S914-XL over wheels with replaceable treads?
A: Molded wheels provide superior bond strength with zero risk of tread separation, lower maintenance (no tread replacement labor), simplified inventory (one unit replaces multiple component types), and predictable performance characteristics. The primary disadvantage is higher cost and inability to salvage the hub when tread wear requires replacement. Choose molded construction for critical applications where wheel failure during operation poses safety or production risks.
Q: How should I inspect a SU S914-XL molded wheel during routine maintenance?
A: Inspect for visible cracks, chunks, or delamination at the tread-to-hub junction monthly. Check bearing grease level and condition, rotate wheel position every 500 operating hours to promote even wear, and measure tread depth quarterly using a depth gauge or visual wear indicators if present. When tread depth reaches 50 percent of new, schedule wheel replacement. Do not attempt repairs on damaged molded wheels.