Product Description
Load Wheel
Specifications: 6.000 inch diameter x 4.250 inch width (6.000" x 4.250" | 6 x 4.25 wheel | 6 x 4-1/4 | 152.40mm x 107.95mm)
Specifications
Wheel Dimensions
| Material | |
| Outside Diameter | 6 |
| Inside Diameter | 2.75 |
| Width Side to Side | 4.25 |
| Tread Profile | 3/8 Radius |
| Bore Depth | 0.83 |
| Hub Width | |
| Bore Outside Diameter | 3.1491 |
Frequently Asked Questions
Q: What load wheel assemblies are equivalent to SU S9117?
A: SU S9117 is the standard 6x4.25 load wheel. The SU S9117-A is the assembly version (includes hub and bearings pre-installed). If you need heavier duty, upgrade to SU S9117-XL. Always verify your truck model supports the wheel before ordering, as fitment depends on your axle bore diameter of 3.1491 inches.
Q: How do I know if my load wheel needs replacement?
A: Replace the wheel when you see flat spots, cracks, or chunks missing from the tread. If the wheel wobbles side-to-side or makes grinding noise, the bearing may be worn and the assembly needs service. Check for a 3/8 inch radius tread profile - if worn down to 1/8 inch or less, replacement is overdue. Most wheels last 1500 to 2000 operating hours depending on load and surface.
Q: What is the bore depth and how does it affect fitment?
A: SU S9117 has a bore depth of 0.83 inches with an outside diameter of 3.1491 inches. This bore must fit your truck axle exactly. A loose fit causes wobble and premature failure. A tight fit prevents installation. Measure your axle diameter and compare to 3.1491 inches before purchase. Shims are not a solution - use the correct bore size for your specific truck model.
Q: Can I use metric and inch-sized wheels on the same truck?
A: No. Do not mix wheels. SU S9117 is 152.40mm x 107.95mm (metric equivalent) but these are exact matches to 6.000 x 4.250 inches. Always use matching pairs or sets of the same part number on both front and rear to ensure even wear and stable handling. Mixing sizes causes uneven braking and steering problems.
Q: What maintenance does SU S9117 require?
A: Inspect wheels weekly for damage, flat spots, or cracks. Check wheel bearings monthly - they should spin freely with no drag or grinding. Wipe dirt and debris from the tread. Do not use water or pressure washers as water enters the bearing. If bearing play develops, the wheel assembly must be replaced. Lubrication is sealed at the factory - do not add grease unless bearing service is required.
Q: What is the maximum load this wheel is rated for?
A: Load capacity depends on the truck model and number of wheels supporting the load. The 6.000 inch diameter with 4.250 inch width is rated for standard duty electric lift trucks, typically 1500 to 3000 pound class. Check your truck nameplate for the exact load rating. Exceeding rated capacity causes rapid tread wear and bearing failure. Never use on over-capacity loads.