Product Description
Load Wheel Assembly
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: Is SU S348-A a complete ready-to-install wheel assembly?
A: Yes, SU S348-A is a complete wheel assembly. It includes the wheel, hub, bearing, and all mounting hardware pre-assembled and factory-tested. Installation typically requires removing the old assembly and bolting the SU S348-A directly to your truck frame. No additional bearing setup or axle modifications are needed unless your equipment has a damaged or non-standard mounting point.
Q: What is the exact wheel diameter and width of the SU S348-A assembly?
A: Wheel diameter is 3.25 inches, and wheel width is 5.75 inches. Metric equivalent is 82.55mm diameter by 146.05mm width. The hub width is also 5.75 inches. Verify these dimensions against your equipment blueprint before ordering. If your truck requires a different width or diameter, the SU S348-A will not fit.
Q: Can I use SU S348-A on an older pallet jack model from the 1990s?
A: Compatibility depends on the mounting bolt pattern and axle bore diameter of your specific model. The SU S348-A has standard bolt holes but older jacks may use different spacing or bore sizes. Contact the pallet jack manufacturer with your model number and serial range, or measure the old assembly before ordering. Using an incompatible assembly can cause binding, wobbling, or complete wheel failure under load.
Q: What is included in the SU S348-A package and what tools do I need to install it?
A: The SU S348-A includes the wheel, hub, bearing, and bolts. Standard installation requires a wrench or socket set sized to your bolt heads, typically 10mm to 17mm. You may need a pallet jack or hoist to lift the truck frame. Do not attempt installation alone without equipment to safely support the truck frame. Improper installation can lead to wheel loss during operation.
Q: How long does the bearing in the SU S348-A last before replacement?
A: Bearing lifespan is 2 to 5 years under normal warehouse use. Lifespan shortens if the wheel hits obstacles repeatedly, operates on rough concrete, or carries sustained overload. The bearing is sealed and does not require greasing. If the wheel begins to make grinding noise or does not spin freely, the bearing has failed and the entire assembly must be replaced. Do not attempt to service individual bearings.
Q: Is SU S348-A equivalent to any other manufacturer part number?
A: SU S348-A is a OEM replacement for many Yale, Hyster, and Toyota lift trucks that use 3.25 x 5.75 load wheels. Cross-reference numbers may exist but always verify bore specifications, bolt pattern, and load rating with the original equipment manual before substituting. Using a different assembly can void your warranty or cause equipment failure.