Product Description
The SU 9133-XL-A Load Wheel Assembly is a high-quality polyurethane-tread wheel designed specifically for Superior electric pallet jacks. This load wheel ensures OEM fitment and is engineered to withstand the rigors of demanding warehouse material handling conditions.
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) | Bearing ID: 25mm (0.984 inch bore | 25.000mm ID)
• Durable polyurethane tread for enhanced longevity
• Pre-installed sealed bearing for smooth operation
• Designed for optimal performance in heavy-duty applications
Specifications
Material & Construction
| Tread Material Specification | Polyurethane, 97A durometer |
| Bonding Process | XL3TM proprietary adhesive system |
Part Numbers
| Manufacturer Part Number | SU 9133-XL-A |
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 SU 9133-XL-A load wheel assembly and does it provide OEM fitment?
A: The SU 9133-XL-A Load Wheel Assembly is a high-quality polyurethane-tread wheel engineered for electric lift trucks. The SU 9133-XL-A is manufactured to OEM specifications with a 3.25-inch diameter, 3.25-inch width, and 25mm (0.984-inch) bearing bore. It is designed to meet original equipment requirements for fitment, performance, and durability in warehouse material handling conditions.
Q: What is the bearing bore specification and is 25mm the correct size for my truck?
A: The SU 9133-XL-A features a 25mm bore (0.984-inch bore or 25.000mm ID). This is a common electric lift truck standard. Verify your existing wheel or axle journal diameter before ordering. If your truck uses a different bore size such as 20mm, 0.875-inch, or 30mm, you will need a different load wheel assembly. Using an incorrect bore size results in wheel wobbling, uneven wear, and potential axle damage.
Q: What material is the SU 9133-XL-A made from and what is the core construction?
A: Core Material: High-strength steel machined to tolerance and finished for bonding integrity. Tread Material: Cushothane XL durable polyurethane. Outside Diameter: 3.25 inches. Width: 3.25 inches. Inside Diameter: 1.938 inches. Bore Depth: 0.591 inches. Bore Outside Diameter: 2.0467 inches. The precision-machined core ensures consistent load distribution and prevents premature bearing wear.
Q: Does the SU 9133-XL-A cross-reference or have equivalent part numbers from other manufacturers?
A: The SU 9133-XL-A is the OEM part number and manufacturer part number. When searching for cross-references, use the dimension specification 3.25 x 3.25 with 25mm bore as your primary criteria. Other branded load wheels meeting this specification may be functionally equivalent; however, always verify bore tolerance, material hardness, and fitment before substitution to avoid fitment issues or premature failure.
Q: How long does the SU 9133-XL-A load wheel typically last and when should I replace it?
A: Typical service life is 18 to 24 months depending on floor conditions, load cycles, and environmental exposure to oils or solvents. Replace the wheel if you observe flat spots, permanent deformation, tread separation, cracking, or chunks of polyurethane missing. If the wheel no longer rolls freely or the truck pulls to one side, remove and inspect the wheel and bearing. Do not wait for complete failure, as a broken load wheel can damage the axle or steering assembly.
Q: How do I install the SU 9133-XL-A and what tools are needed?
A: Park the truck on a level work surface and engage the parking brake. Use a floor jack or lift to raise the truck safely. Use a socket wrench or pin puller to remove the axle fastener. Slide the old wheel off the axle journal. Inspect the axle and bearing for damage or contamination. Slide the SU 9133-XL-A wheel onto the axle, ensuring the 25mm bore aligns with the journal. Reinstall the axle fastener and torque per manufacturer specifications. Lower the truck and test wheel rotation before returning to service.