Product Description
Caster Wheel
Specifications: 8.000 inch diameter x 4.000 inch width (8.000" x 4.000" | 8 x 4 wheel | 8 x 4 | 203.20mm x 101.60mm)
Specifications
Wheel Dimensions
| Outside Diameter | 8 |
| Inside Diameter | 2.56 |
| Width Side to Side | 4 |
| Bore Depth | 0.91 |
| Bore Outside Diameter | 2.8338 |
Frequently Asked Questions
Q: What are the exact dimensions of the SU S9131 caster wheel?
A: The SU S9131 has an outside diameter of 8.000 inches (203.20mm) and a tread width of 4.000 inches (101.60mm). The bore diameter is 2.8338 inches with a bore depth of 0.91 inches and an inside diameter of 2.56 inches. These specifications ensure compatibility with Superior XL platform axle configurations.
Q: What material and hardness rating does the SU S9131 offer?
A: The SU S9131 is a polyurethane wheel with a 97A durometer hardness rating, providing balanced abrasion resistance and floor grip for electric lift truck applications. The wheel is bonded to a machined steel core using proprietary XL3 bonding technology for maximum heat and shear endurance under heavy-duty-cycle use.
Q: Is the SU S9131 wheel a complete assembly or just the wheel?
A: The SU S9131 is the wheel component only. It does not include pre-installed bearings or fasteners. For a complete ready-to-install assembly with bearings, specify the SU S9131-A or SU S9131-XL-A. Installation requires bearing press and proper axle fitment tools.
Q: What is the maximum load rating for the SU S9131?
A: Load capacity depends on axle diameter, bearing specification, and truck configuration. The 8x4 wheel size is rated for heavy-duty industrial pallet truck use. Consult your truck nameplate and parts manual for maximum per-wheel load limits. Overloading causes accelerated bearing wear and polyurethane degradation.