Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What does the A suffix mean on the SU S673-XL-A?
A: The A designation indicates this is a complete Load Wheel Assembly. It includes the wheel shell, pre-installed and pre-pressed bearings, and all necessary mounting hardware. You do not need to press bearings or prepare additional parts before installation.
Q: Is installation of the SU S673-XL-A plug-and-play?
A: Mostly yes. Remove the old wheel assembly from the axle, slide the SU S673-XL-A onto the shaft, and secure with the retaining hardware. No bearing pressing or modification required. Ensure the axle shaft is clean and free of burrs before installation to prevent binding.
Q: How is the SU S673-XL-A different from ordering SU S673-XL plus separate bearings?
A: The SU S673-XL-A comes factory-assembled and pre-pressed with bearings matched to the wheel bore. Separate components cost more, require specialized pressing equipment, and risk improper bearing installation. Always order the complete assembly for reliability.
Q: What if the SU S673-XL-A does not spin freely after installation?
A: Check that the axle shaft is straight and the mounting surface is clean. Verify the retaining hardware is not over-tightened, which can bind the bearings. If the wheel was stored in cold or damp conditions, spin it by hand 10-15 times to work out lubricant. If binding persists, the assembly may have been damaged in transit.
Q: What is the expected lifespan of the SU S673-XL-A?
A: With normal use and monthly inspection, expect 18-36 months of service. Lifespan depends on load, daily operating hours, and surface conditions. Wet or corrosive environments reduce bearing life. If the wheel is dragging or grinding, replace it immediately to prevent axle damage.
Q: Can the bearings on the SU S673-XL-A be re-greased?
A: Most sealed bearings on this assembly are not serviceable and cannot be re-greased. If bearing performance drops, replace the entire assembly. Do not force grease into sealed bearings; this causes internal pressure and bearing failure.