Product Description
POLY LOAD WHEEL
Frequently Asked Questions
Q: What does POLY mean in SU S2351 and how is it different from standard rubber load wheels?
A: POLY indicates SU S2351 uses polyurethane tire compound instead of natural or synthetic rubber. Polyurethane wheels are harder, resist cuts and punctures better, and last longer on rough surfaces. SU S2351 is ideal for high-friction warehouse operations with rough concrete or cutting hazards. Trade-off is slightly harsher ride and increased steering effort.
Q: Can I mix SU S2351 poly wheels with standard rubber wheels on the same truck?
A: No. Do not mix poly and rubber wheels on the same truck. The different hardness compounds cause uneven rolling resistance and steering instability. If replacing damaged wheels, determine whether your truck is originally equipped with poly or rubber. Order matching wheels for all four positions. Using mismatched wheel types increases accident risk and may void the truck warranty.
Q: What tire pressure should be used for SU S2351 poly load wheel?
A: SU S2351 is rated for 50-60 psi cold pressure. Poly wheels generate more heat under load, so set pressure at lower end of range (50-52 psi) in high-friction applications. Check pressure weekly as poly wheels lose pressure faster than rubber wheels. Do not exceed 65 psi or tire blowout risk increases. Proper pressure extends lifespan to 30+ months.
Q: Are SU S2351 poly wheels suitable for freeze-thaw environments or wet outdoor operation?
A: SU S2351 poly wheels perform well in wet conditions due to hard compound providing good traction on wet concrete. However, polyurethane becomes rigid below minus 5 degrees F, creating brittle tire compound prone to sidewall cracking. For environments with freeze-thaw cycles, use traditional rubber wheels instead. SU S2351 is rated for dry and wet operation between minus 5 and plus 140 degrees F.
Q: How do I identify if SU S2351 wheels are reaching end of life?
A: SU S2351 poly wheels show end-of-life when tread depth falls below 2/16 inch (measure with a coin inserted into tread groove), visible cracking appears on sidewalls, or the wheel diameter shrinks to less than 14.5 inches. Poly wheels do not show wear as visibly as rubber, so measure tread depth monthly in high-use trucks. Replace immediately when any end-of-life indicator appears.