Product Description
4 X 4, Poly Load Wheel, Assy
Frequently Asked Questions
Q: What does the -A suffix on the SU 730-XL-A designation indicate?
A: The -A suffix indicates this is a complete wheel assembly rather than just the wheel alone. The SU 730-XL-A includes the 4 x 4 polyurethane load wheel bonded to the steel core, the sealed ball bearing, and the hub interface ready for direct mounting. This is a plug-and-play replacement if your original wheel assembly uses the same hub type. Do not confuse this with the base SU 730-XL wheel, which may require separate bearing or hub installation.
Q: Is the SU 730-XL-A assembly compatible with my current truck if I do not know the original part number?
A: Verify three critical measurements before installation. Measure the wheel bore diameter at the hub connection point; it must match your truck hub. Measure the wheel outer diameter and width; if your current wheel is 4 x 4 inches, it should be compatible. Finally, check whether your hub uses a press-on or bolt-on interface by examining the original wheel. If all three measurements and the hub type match, the SU 730-XL-A will fit. When in doubt, contact the truck manufacturer with your truck model and serial number for confirmation.
Q: Can the SU 730-XL-A be installed on both drive wheels and load wheels of a pallet jack?
A: No. The SU 730-XL-A is designed only for load wheel applications, not drive wheels. Load wheels are the unpowered fixed wheels that carry the truck load; drive wheels are powered and require different bearing types, profiles, and hardness ratings to handle motor torque. Installing this assembly on a drive wheel position will cause slipping, overheating, and rapid bearing failure. Always verify whether you need a load wheel or drive wheel replacement before ordering.
Q: What is the installation time and tools required for the SU 730-XL-A assembly?
A: For a press-on assembly, installation takes 30-45 minutes per wheel if you have access to an arbor press. Tools required are a wheel puller, arbor press, 2-4 ton capacity minimum, and cleaning cloth. For a bolt-on assembly, installation takes 15-20 minutes per wheel and requires only a socket wrench set and a torque wrench. No special bearing tools or pressing equipment is needed for bolt-on assemblies. If your hub type is unknown, contact the truck manufacturer before ordering the assembly to confirm hub interface.
Q: What should I do if the SU 730-XL-A assembly makes noise after installation?
A: First, verify the wheel is fully seated. For press-on hubs, the wheel shoulder must be flush against the hub. For bolt-on hubs, all bolts must be tightened evenly and completely. Second, check for debris inside the wheel bore or hub. Clean both surfaces thoroughly with a dry cloth and reinstall. Third, inspect the hub for bending or damage; if the hub is bent, the wheel cannot seat properly and a new hub is required. If noise persists after these checks, the sealed bearing inside the assembly may be defective. Contact your supplier for warranty replacement.
Q: How long is the warranty on the SU 730-XL-A assembly and what does it cover?
A: Standard manufacturer warranty is typically 12 months from purchase or 18 months from manufacturing date, whichever is shorter, covering manufacturing defects in the wheel, bearing, or hub interface. Warranty does NOT cover wear and tear from normal use, damage from overloading beyond rated capacity, improper installation, or damage to the polyurethane from chemical exposure or extreme temperatures. Keep your proof of purchase and original receipt. For warranty claims, contact your supplier with the original SKU, purchase date, and photographic evidence of the defect.