SU 9531-A

Frequently Asked Questions

Q: What is the load capacity and voltage rating for the SU 9531-A wheel assembly?
A: The SU 9531-A is rated for electric pallet jack and walkie applications only. With a 2.50 inch outer diameter, this wheel is designed for lower-load or light-duty electric lift trucks. Load capacity depends on truck class and total wheel count. Verify your truck manual for specific voltage and load ratings. This wheel is not suitable for class 3 or higher capacity trucks.

Q: Is the SU 9531-A wheel compatible with Yale or Hyster electric lift trucks?
A: The SU 9531-A is an OEM equivalent part. Cross-reference your truck model and serial range in the OEM parts catalog to confirm compatibility. Yale and Hyster models differ by production year and voltage (24V, 36V, 48V). Always verify the mounting hub diameter and bearing type before installation. If your truck requires a 3.25 inch wheel instead of 2.50 inch, this part will not fit.

Q: What tread hardness does the SU 9531-A provide and when should I replace it?
A: The SU 9531-A features 92 Shore A polyurethane tread for grip and wear resistance. Replace the wheel assembly when tread depth falls below 0.25 inch, when the tread separates from the steel core, or when polyurethane is cracked or chunked. A worn wheel causes poor load control and reduced steering response. Inspect quarterly on trucks in heavy use.

Q: Does the SU 9531-A come with a precision ball bearing pre-installed?
A: Yes, the SU 9531-A includes a precision ball bearing installed and pre-lubricated. The bearing does not require field lubrication. Do not remove or repack the bearing unless it fails. If the wheel spins roughly, makes noise, or the bearing is seized, replace the entire assembly rather than attempting repair.

Q: What is the hub material and finish of the SU 9531-A wheel?
A: The SU 9531-A has a machined steel core hub with natural polyurethane tread. The steel hub is finished with a clear coat to resist corrosion. Do not exceed 2.50 inch diameter in applications requiring larger wheels, as this will cause load imbalance and steering issues.

Q: Can the SU 9531-A wheel tread be regrooved or does the entire assembly need replacement?
A: The SU 9531-A is not designed for tread regrooving. Replace the entire wheel assembly when tread is worn. Attempting to remove and reuse only the bearing is not recommended due to the precision fit and seal design. Always install a complete OEM-equivalent assembly.