Product Description
Load Wheel
Frequently Asked Questions
Q: What lift truck models is the SU S631-EZ compatible with?
A: The SU S631-EZ is a direct-fit replacement load wheel for Crown, Toyota, Raymond, and Yale electric lift trucks using the 631-series wheel cavity. Verify your truck model and serial range before ordering. This wheel fits applications requiring a standard-duty polyurethane tread in the 6-inch diameter class.
Q: Can I use SU S631-EZ on a truck that currently has a different brand wheel installed?
A: Yes, if the bore diameter and hub interface match. The SU S631-EZ uses a standard 2-inch bore. Cross-reference your current wheel part number with Superior equivalents to confirm bore and width compatibility. Do not force-fit if the bore does not align.
Q: What is the load rating for the SU S631-EZ?
A: Load capacity depends on wheel diameter, width, material, and total truck configuration. Contact Superior with your truck specs for exact load limits. The SU S631-EZ is rated for heavy-duty industrial use but should not exceed the truck manufacturer maximum wheel load specification.
Q: How do I diagnose if my SU S631-EZ wheel needs replacement?
A: Replace the wheel if you observe: tread separation or peeling, visible cracks or chunks missing from the tread, uneven wear or flat spots, excessive lateral runout, or noise during operation. Spin the wheel by hand; it should rotate smoothly with minimal wobble.
Q: What maintenance extends the life of SU S631-EZ wheels?
A: Inspect wheels weekly for debris and damage. Clean polyurethane treads regularly to prevent contaminant buildup. Verify hub fasteners are tight. Rotate wheels periodically if even wear is not occurring. Replace wheels before the tread is completely worn to avoid core damage.
Q: Is the SU S631-EZ the same as the SU S631-EZ-A assembly?
A: No. The SU S631-EZ is the wheel component only. The SU S631-EZ-A includes the wheel assembly with bearing kit and fasteners pre-installed. Order the -A version only if you need a complete plug-and-play assembly; order the wheel only if you are replacing just the tread.