Product Description
The SU S9133 is a polyurethane load wheel for electric lift trucks, featuring a 3-1/4 inch outside diameter and 3-1/4 inch width. The poly tread is mounted on a carbon steel hub. Manufacturer part number is SU S9133; no documented cross-reference part numbers are available.
Specifications: 3.250 inch diameter x 3.250 inch width (3.250" x 3.250" | 3.25 x 3.25 wheel | 3-1/4 x 3-1/4 | 82.55mm x 82.55mm)
Specifications
Material & Construction
| Wheel Material | Polyurethane tread with carbon steel hub |
| Surface Finish | Electroplated hub |
Part Numbers
| Manufacturer Part Number | SU S9133 |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 3.25 |
| Bore Depth | 0.591 |
| Hub Width | 3.25 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the exact size and weight capacity of the SU S9133 load wheel?
A: The SU S9133 is 3.25 inches in outside diameter by 3.25 inches in width (82.55mm x 82.55mm metric). It features a 1.938 inch inside diameter and 2.0467 inch bore outside diameter. This wheel is rated for electric lift trucks but does not have a documented gross load capacity specification. Always verify compatibility with your specific truck model before ordering.
Q: Can I use SU S9133 as a direct replacement for other brand load wheels?
A: No documented cross-reference part numbers exist for the SU S9133. While wheels from different manufacturers may have the same physical dimensions (3.25 x 3.25), bore tolerances and hub specifications vary. Always verify that the bore depth (0.591 inch), bore outside diameter (2.0467 inch), and hub width (3.25 inch) match your original equipment before substituting.
Q: What material is the SU S9133 and how does it perform in wet conditions?
A: The SU S9133 uses Cushothane XL polyurethane tread mounted on an electroplated carbon steel hub. Polyurethane wheels provide good traction on clean concrete and warehouse floors. In wet conditions, polyurethane tread offers moderate grip but can become slippery on ice or heavily wet surfaces. For consistent wet-floor performance, verify your equipment manual for weather-rated wheel recommendations.
Q: How do I know if my SU S9133 wheel needs replacement?
A: Replace the SU S9133 if you observe flat spots, visible cracks in the polyurethane tread, or grinding/squealing during operation. Excessive wear reduces rolling diameter below 3.25 inches, which can affect load handling and truck performance. If the wheel does not rotate freely or the hub shows corrosion despite the electroplated finish, replacement is required.
Q: What tools and steps are needed to install the SU S9133?
A: Installation requires removal of the axle bolt or cotter pin holding the old wheel. Use an appropriate socket and wrench for your truck model. Slide the wheel onto the axle and secure using the original fastening method. Ensure the wheel rotates freely without binding. Do not over-tighten the fastener as this can damage the bore. After installation, test the truck under load to confirm proper operation.
Q: Should the SU S9133 wheel be lubricated, and what maintenance is needed?
A: The SU S9133 is a sealed wheel assembly and does not require greasing. Maintenance consists of periodic cleaning with mild soap and water to remove debris and dirt buildup. Inspect monthly for polyurethane tread cracking or hub corrosion. Store indoors away from direct sunlight and extreme heat, as sustained temperatures above 140 degrees Fahrenheit can degrade polyurethane durability. Expected service life is 2-5 years depending on floor conditions and load frequency.