Product Description
Load Wheel
Frequently Asked Questions
Q: What does the XL designation mean for the SU S554-XL wheel?
A: XL indicates extra-large diameter and load capacity. The SU S554-XL has an 8-inch wheel diameter and supports up to 4000 lbs per wheel - 33 percent more than standard 6-inch wheels. This fits heavier-duty lift trucks only.
Q: Will the SU S554-XL fit my current electric lift truck?
A: Only if your truck is designed for 8-inch wheels. Installing SU S554-XL on a truck rated for 6-inch wheels causes improper weight distribution, overheating, and premature brake failure. Check your truck manual for wheel size specification before ordering.
Q: Is the SU S554-XL interchangeable with standard load wheels?
A: No - the SU S554-XL cannot be mixed with smaller wheels on the same truck. Do not install on only two wheels while keeping smaller wheels on the other two. All four wheels must be the same size and load rating for safe operation.
Q: How do I measure my current wheel to verify if I need the SU S554-XL?
A: Use a tape measure across the wheel face from outside edge to outside edge. The SU S554-XL is 8 inches. If your wheel measures 6 inches, you need a standard size, not the XL. If you need larger capacity, consult your truck manufacturer for approved wheel upgrades.
Q: What tire material is the SU S554-XL made from?
A: The SU S554-XL uses polyurethane tire compound molded to the rim. This provides good grip on concrete and sealed floors. Expected lifespan is 2-4 years depending on floor type and load frequency. Polyurethane tires are harder than rubber and provide less shock absorption.
Q: What maintenance does the SU S554-XL require?
A: Inspect monthly for cracks or flat spots. Clean debris from wheel grooves quarterly. Check bearing play by lifting the truck and spinning each wheel - excessive side-to-side movement indicates worn bearings. Bearings typically last 3 years; replace if grinding sounds develop.