Product Description
Load Wheel
Specifications: 3.250 inch diameter x 5.750 inch width (3.250" x 5.750" | 3.25 x 5.75 wheel | 3-1/4 x 5-3/4 | 82.55mm x 146.05mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 5.75 |
| Bore Depth | 1.447 |
| Hub Width | 5.75 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the difference between SU S348 and SU S348-A?
A: SU S348 is the wheel component only. SU S348-A is a complete wheel assembly that includes the wheel mounted on a hub or axle assembly. If you are replacing just the wheel, order SU S348. If you need the ready-to-install assembly, order SU S348-A. Always verify your jack model to confirm which format your equipment requires.
Q: What material is the SU S348 wheel made from and why does material matter?
A: The SU S348 is made from Cushothane XL, a durable polyurethane compound. Cushothane XL resists oil, grease, and most floor chemicals better than standard rubber. It also maintains its grip on wet or oily floors where rubber wheels slip. Choose Cushothane XL for warehouse environments with heavy chemical exposure or frequent wet cleaning. Choose rubber if your floors are dry and clean.
Q: Will SU S348 fit my pallet jack or electric lift truck?
A: The SU S348 is 3.25 inches in diameter and 5.75 inches wide. Your equipment uses this wheel if the original wheel is marked 3.25 x 5.75 or 82.55mm x 146.05mm. Check the bore specifications: inside diameter 1.938 inch, bore outside diameter 2.0467 inch, and bore depth 1.447 inch must match your axle. If your axle bore or load capacity differs, the wheel will not fit or may fail under load.
Q: What load capacity does the SU S348 support?
A: Load capacity depends on how many wheels support the load and the equipment design. The SU S348 is rated for electric lift trucks and pallet jacks with standard duty cycles. Do not exceed the manufacturer load rating for your specific equipment model. Overloading causes bearing failure, wheel deformation, and axle stress. Check your equipment nameplate or manual for maximum rated load before use.
Q: How do I know when to replace the SU S348 wheel?
A: Replace the wheel when you observe flat spots, visible cracks, chunks missing from the tread, or uneven wear patterns. If the wheel does not roll freely or makes noise, the bearing may be failing rather than the wheel. If the equipment pulls to one side during operation, compare wheel wear across the truck. Worn wheels reduce steering precision and increase bearing strain on adjacent wheels, so replace promptly.
Q: Does the SU S348 require maintenance or lubrication?
A: The SU S348 has sealed precision bearings that do not require re-greasing during normal operation. Clean the wheel regularly to remove floor debris and chemical buildup that can degrade the Cushothane material. If the bearing feels rough when you spin the wheel by hand, do not attempt to lubricate it. Replace the wheel assembly instead. Typical lifespan is 2 to 5 years depending on usage intensity and floor conditions.