Product Description
3.25 X 4 Poly Load Wheel
Frequently Asked Questions
Q: What are the exact specifications of the SU S423 poly load wheel?
A: The SU S423 is a 3.25 inch diameter by 4.00 inch width poly load wheel designed for medium to heavy-duty lift trucks, stackers, and pallet jacks. The larger width provides greater stability and load distribution compared to smaller wheel options. Verify the bore diameter, durometer hardness, and bearing housing specifications from your equipment documentation before installation. These dimensions determine compatibility with your axle, equipment frame geometry, and load rating.
Q: What lift truck models are compatible with the SU S423 3.25 x 4 wheel?
A: The SU S423 is compatible with lift trucks and stackers that specify a 3.25 inch diameter by 4.00 inch width load wheel in their documentation. Equipment models vary by manufacturer, so cross-reference the SU S423 part number with your equipment manual or original wheel markings. Verify that your axle bore and equipment frame accommodate the 4 inch width without interference. If you are unsure of your equipment model or specifications, contact technical support with your equipment serial number for confirmation before ordering.
Q: Does the SU S423 wheel offer better load capacity or stability than smaller wheel options?
A: The SU S423 is 3.25 inches in diameter and 4 inches wide, compared to smaller options like the SU S4001 which is 2.75 inches diameter and 2 inches wide. The larger diameter and wider width provide greater load distribution, improved stability on uneven floors, and potentially higher load capacity depending on your equipment design. The actual load capacity is determined by the equipment frame, bearing strength, and number of wheels used. Do not assume capacity increases without consulting your equipment manual, as the equipment design may limit maximum weight regardless of wheel size.
Q: What symptoms indicate the SU S423 wheel needs replacement?
A: Replace the SU S423 when you observe flat spots, cracks, or visible poly material loss. If the equipment pulls to one side, vibrates excessively, or produces grinding or squeaking sounds, inspect the wheel for damage. Check that the wheel spins freely by hand without resistance. If the bearing housing leaks grease, the bearing assembly may require service. Measure the wheel diameter—if it is significantly worn and measures less than 3 inches, replacement is necessary. Worn wheels reduce load capacity and increase accident risk.
Q: Can I replace a smaller wheel like the SU S4001 with the larger SU S423 wheel on my equipment?
A: Do not attempt to install the SU S423 on equipment designed for the smaller SU S4001 wheel. The 3.25 x 4 dimension will not fit equipment with a 2.75 x 2 wheel mount. Mismatched wheels cause frame interference, axle damage, equipment misalignment, and safety hazards. Use only wheels that match your equipment documentation specifications. If you want to upgrade to larger wheels, consult your equipment manufacturer to determine if your equipment frame and axle can accommodate them and if modifications are required.