Product Description
LOAD WHEEL,87A
Specifications: 3.250 inch diameter x 5.937 inch width (3.250" x 5.937" | 3.25 x 5.94 wheel | 3-1/4 x 5.937 | 82.55mm x 150.80mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 5.873 |
| Bore Depth | 0.591 |
| Hub Width | 5.873 |
| Bore Outside Diameter | 2.0467 |
| Tread Profile |
Frequently Asked Questions
Q: What is the material and hardness rating of the SU S629-EZ load wheel?
A: The SU S629-EZ is manufactured from Cushothane XL polyurethane with an 87A Shore hardness rating. This softer compound provides better grip and traction on smooth warehouse floors but will wear faster under heavy sliding loads compared to 97A wheels.
Q: What are the exact dimensions and metric equivalents for the SU S629-EZ?
A: Outside diameter is 3.250 inches (82.55mm), width is 5.937 inches (150.80mm), inside diameter is 1.938 inches, and bore diameter is 2.0467 inches. The hub width and bore depth are 5.873 and 0.591 inches respectively. Always verify bore diameter compatibility before installation.
Q: Can I use the SU S629-EZ wheel on the same truck as the SU S629-XL with 97A hardness?
A: No. Do not mix 87A and 97A wheels on the same jack. The hardness difference causes uneven load distribution, steering pull, and premature wear. All four wheels must have matching hardness ratings and wear levels. Mixing compounds voids warranty.
Q: What is the typical service life of the SU S629-EZ wheel in normal warehouse operation?
A: Under typical indoor warehouse conditions with 4000-pound loads, expect 18-24 months of service life before polyurethane degradation and flat-spotting occur. Life extends to 30+ months with minimal floor sliding. High-speed manual jacks and outdoor use reduce service life significantly.
Q: How do I diagnose if my SU S629-EZ wheels need replacement?
A: Replace wheels when you observe flat spots visible from the side, visible cracks in the tread, or when wheels slip during moderate load lifting on dry floors. If the steering feels loose or the jack pulls to one side with full load, check all wheels for uneven wear. Polyurethane cannot be resurfaced or repaired.