Product Description
LOAD WHEEL ASSEMBLY
Frequently Asked Questions
Q: What does the SU S523-A load wheel assembly include compared to just the wheel?
A: The SU S523-A is a complete assembly that includes the polyurethane wheel, precision bearing, and hub as a pre-assembled unit. This saves installation labor because the bearing is already pressed and sealed. You simply bolt the assembly onto your truck axle. The loose wheel version (SU S523) requires bearing installation and packing unless your axle has pre-drilled bearing cavities.
Q: Can I install the SU S523-A assembly myself, or do I need a technician?
A: The SU S523-A assembly is plug-and-play if your truck axle uses standard bolt holes and a 20 mm axle pin. You will need a socket wrench set, cotter pins, and a snap ring tool if applicable. Always raise the truck safely on blocks before removing wheels. If your truck has a different axle design or if you are unsure of your axle bore size, have a technician confirm fitment first to avoid improper installation.
Q: How long does the bearing in the SU S523-A assembly typically last?
A: The sealed precision bearing in the SU S523-A is rated for approximately 2000 to 3000 operating hours under normal load conditions on smooth concrete. Bearing life decreases if the truck operates on rough floors, carries overload, or if wheels are not aligned. Inspect bearings for play (side-to-side movement) every 500 hours. If the wheel wobbles or squeaks, the bearing should be replaced.