Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What is included in the SU S673-EZ-A complete assembly?
A: SU S673-EZ-A includes the polyurethane wheel, new sealed bearing cartridge, quick-release collar, and spacer ring. Everything is pre-assembled, pre-torqued, and ready to slide onto your axle. No bearing cartridge transfer or tool adjustments needed.
Q: What is the load capacity and tire specifications of the SU S673-EZ-A?
A: SU S673-EZ-A supports 4200 pounds per wheel. Wheel diameter is 8 inches, width 6.5 inches. Tire is polyurethane, rated for indoor use only on concrete floors. Operating temperature range is 32F to 104F.
Q: How do I install the SU S673-EZ-A and how long does it take?
A: Jack the truck, remove the old wheel (loosen the collar if it has quick-release), align the new SU S673-EZ-A onto the axle shaft, tighten the quick-release collar by hand until snug (do not overtighten), and test spin. Installation takes 5 minutes per wheel with no tools required.
Q: Is SU S673-EZ-A backward compatible with trucks that have standard cotter-pin wheels?
A: No. If your truck is equipped with standard cotter-pin collars, you cannot install SU S673-EZ-A without first replacing the collar hardware on the axle. Verify your truck has quick-release collars before ordering SU S673-EZ-A. Standard trucks should order SU S673-A instead.
Q: How often should I replace the SU S673-EZ-A and what causes premature failure?
A: With normal warehouse use, SU S673-EZ-A lasts 20-28 months. Premature failure occurs if the collar is overtightened (crushes the bearing), if loads exceed 4200 pounds, or if wheels are used outdoors on rough pavement. Inspect tire and collar every 6 months. Replace when tire is worn to 0.25 inch thickness.
Q: How does the quick-release collar on SU S673-EZ-A prevent theft or accidental wheel loss?
A: The compression collar must be hand-tightened to a specific resistance level. If the collar is loose, the wheel will wobble during operation and drag, signaling an unsafe condition. However, quick-release wheels do not have a lock mechanism, so store vehicles in controlled areas or use wheel locks for high-theft environments.