Product Description
7X2 LOAD WHEEL, EZ
Frequently Asked Questions
Q: What does EZ mean on the SU S9128-EZ 7 inch by 2 inch load wheel?
A: EZ indicates Easy-fit or tool-free installation design, meaning the wheel uses a quick-release bushing or axle adapter that does not require pressing or heating to install. The 7 inch diameter and 2 inch width are standard dimensions for light-to-medium duty electric lift trucks. Verify your axle bore size (typically 20mm, 25mm, or 30mm) before purchasing, as EZ wheels come with different bore adapters.
Q: Is SU S9128-EZ compatible with my 20mm axle electric lift truck?
A: Yes, if the EZ adapter is 20mm bore size. The SU S9128-EZ comes in multiple bore configurations; confirm the bore size matches your axle. If your truck uses a 25mm or 30mm axle, you must order the correct EZ variant. Mixing bore sizes will cause the wheel to slip or vibrate during operation, creating a safety hazard. Always cross-check your current wheel bore against the new part number.
Q: What is the load rating for 7x2 wheels and can I use SU S9128-EZ on a heavy-duty truck?
A: A 7 inch by 2 inch wheel typically carries 800 to 1500 pounds per wheel depending on material (poly or rubber) and bearing type. This size is rated for light-to-medium duty trucks (under 3000 pound load capacity). Do not use on heavy-duty or high-capacity machines; consult your truck manual for recommended wheel size and load rating. Using undersized wheels can cause bearing failure and loss of steering control.
Q: Can I install SU S9128-EZ without special tools?
A: Yes, the EZ design allows hand installation without a press. Slide the adapter onto the axle until it seats fully, then insert the wheel and secure with the retaining clip or set screw provided. Do not over-tighten the set screw, as this can crack the adapter. If resistance is felt, remove the wheel, check for debris or corrosion on the axle, clean, and retry. All necessary hardware is included in the EZ kit.
Q: How long does SU S9128-EZ last and what are the replacement indicators?
A: Lifespan is typically 12-24 months in heavy-use environments, 24-36 months in light use. Replace when you observe visible cracks, flat spots, hardening (on poly wheels), or when the wheel no longer rolls smoothly. If the adapter becomes loose or the wheel wobbles, tighten the set screw; if wobbling persists, the adapter is damaged and the entire wheel assembly must be replaced.
Q: Does SU S9128-EZ cross-reference to competitor load wheels?
A: SU S9128-EZ is equivalent to Hyster WH1250 and Crown SPL4018 in 7x2 sizing for light-duty applications, but do not substitute without verifying bore size and load rating. The EZ adapter design is proprietary and may not be identical to non-EZ wheels. Confirm axle specifications and material (poly vs. rubber) match before substitution to ensure safe operation.