Product Description
Load Wheel Assembly
Specifications: 3.250 inch diameter x 4.500 inch width (3.250" x 4.500" | 3.25 x 4.5 wheel | 3-1/4 x 4-1/2 | 82.55mm x 114.30mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 4.5 |
| Bore Depth | 0.512 |
| Hub Width | 4.5 |
| Bore Outside Diameter | 2.1649 |
Frequently Asked Questions
Q: What is the load capacity for the SU 9144-A load wheel assembly?
A: The SU 9144-A is designed for standard manual pallet jack applications with typical load ratings of 2200-2500 lbs at 24 inch load center. Consult your equipment manual for the exact maximum load capacity of your specific pallet jack model.
Q: Can the SU 9144-A fit my Crown or Toyota pallet jack?
A: The SU 9144-A 3.25 inch diameter x 4.5 inch width wheel can fit pallet jacks requiring these exact dimensions. Before purchasing, verify your jack specification plate lists 3.25 inch wheel diameter and 4.5 inch width. Bore diameter (1.938 inch) and axle shaft size must also match your equipment.
Q: What does Cushothane XL material mean for the SU 9144-A?
A: Cushothane XL is a polyurethane tread material engineered for industrial load wheel applications. It provides superior floor grip, wear resistance, and durability compared to standard rubber wheels. XL designation indicates extra-load compound formulation suitable for heavier duty cycles.
Q: How do I replace the SU 9144-A load wheel on my pallet jack?
A: Remove the axle bolt securing the wheel assembly to the load wheel bracket. Slide the old wheel off the axle shaft and position the new SU 9144-A assembly. Reinstall the bolt and tighten firmly. Ensure the wheel rotates freely without binding. Use a wrench sized for your equipment to avoid over-tightening.
Q: What is the expected lifespan of the SU 9144-A wheel?
A: Typical lifespan is 12-24 months under normal warehouse use (4-8 hours daily). Heavy-use environments may see 6-12 month wear life. Replace the wheel when you observe visible tread wear, flat spotting, or if the jack begins to pull to one side during operation.
Q: Are there equivalent part numbers to the SU 9144-A?
A: Always verify cross-reference equivalents with your OEM parts catalog before purchasing. Wheels with identical dimensions (3.25 inch x 4.5 inch), bore specs (1.938 inch ID), and material match may be interchangeable, but construction quality and bearing sealing vary by manufacturer.