Product Description
Load Wheel
Specifications: 6.000 inch diameter x 4.000 inch width (6.000" x 4.000" | 6 x 4 wheel | 6 x 4 | 152.40mm x 101.60mm)
Specifications
Wheel Dimensions
| Material | Cushothane EZ |
| Outside Diameter | 6 |
| Inside Diameter | 2.5 |
| Width Side to Side | 4 |
| Tread Profile | Angle |
| Bore Depth | 0.68 |
| Hub Width | 4 |
| Bore Outside Diameter | 2.8341 |
Frequently Asked Questions
Q: What does Cushothane EZ mean and how does it affect tire performance?
A: Cushothane EZ is a polyurethane elastomer formulated for smooth, quiet operation on hard floors. The EZ designation means easy-running with minimal rolling resistance and reduced vibration compared to standard rubber. This material is ideal for warehouse, retail, and quiet indoor environments. It provides good traction on dry concrete and tile but may be slippery on wet or oily floors.
Q: Is the SU S666-EZ a 6 x 4 tire and what do those dimensions mean?
A: Yes, SU S666-EZ is a 6 by 4 load wheel. The 6 means 6.000 inch outside diameter or 152.40 millimeters. The 4 means 4.000 inch width or 101.60 millimeters. The bore diameter is 2.5 inches for mounting on standard lift truck axles. Verify these dimensions match your existing wheel before ordering as bore and width variations affect fitment.
Q: Can I use SU S666-EZ to replace wheels manufactured by other brands?
A: Yes, if the bore diameter, outside diameter, and width are identical. The SU S666-EZ with 2.5 inch bore is compatible with any 6 x 4 load wheel application using a standard shaft. However, verify that your truck manual does not specify OEM-only wheels. Some manufacturers restrict cross-brand components to maintain warranty coverage.
Q: What load rating does the SU S666-EZ support?
A: The SU S666-EZ is rated for standard-duty indoor warehouse applications. Exact load rating depends on truck frame and axle capacity, not the wheel alone. Four wheels typically support the truck nameplate capacity, usually 3000 to 5500 pounds total. Do not overload based on wheel size; always respect the truck nameplate rating.
Q: How long does a SU S666-EZ wheel typically last in normal warehouse use?
A: In typical warehouse operation, expect 1500 to 2500 hours before replacement. Lifespan depends on floor condition, load weight, and maintenance. Smooth, clean concrete extends life significantly. Rough or contaminated floors, excessive loads, and poor bearing maintenance shorten service life. Replace the wheel when tread wear reaches 25 percent of original thickness or if flat spots develop.