Product Description
SU S9143-XL-A-R Poly Load Wheel 97A Assembly is a polyurethane load wheel designed for electric lift trucks and pallet jacks, featuring 97 Shore A hardness and industry-standard steel core assembly for high duty cycles. Supersedes and cross-references SU9143XL, 9143XL, and other equivalents. Engineered for compatibility with Superior pallet trucks and offers advanced abrasion and bond separation resistance.
Specifications: 4.000 inch diameter x 2.500 inch width (4.000" x 2.500" | 4 x 2.5 wheel | 4 x 2-1/2 | 101.60mm x 63.50mm)
Specifications
Material
| Hub Material | Steel core, precision machined |
| Surface Finish | Steel hub with anti-corrosion surface treatment |
Part Numbers
| OEM Part Number | SU S9143-XL-A-R |
| Manufacturer Part Number | SU9143XL |
| Cross-Reference Part Numbers | SU9143XL, 9143XL |
| Supersedes | SU 9143 XL |
| Equivalent Part Numbers | SU-9143-XL, SU9143XL |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 4 |
| Inside Diameter | 1.938 |
| Width Side to Side | 2.5 |
| Tread Profile | 1/4 Radius |
| Bore Depth | 0.591 |
| Hub Width | 2.5 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What are the core specifications and material of the SU S9143-XL-A-R?
A: The SU S9143-XL-A-R is a polyurethane load wheel assembly measuring 4.000 inch diameter x 2.500 inch width (101.60mm x 63.50mm). It features a 97 Shore A hardness Cushothane XL compound with a precision machined steel core hub. The steel hub has anti-corrosion surface treatment to resist oxidation and contamination. This wheel is engineered for heavy-duty electric lift truck and pallet jack load wheel applications requiring robust polyurethane tread and preassembled bearing integration.
Q: What are the cross-reference and equivalent part numbers for the SU S9143-XL-A-R?
A: The SU S9143-XL-A-R carries equivalent and cross-reference designations: SU9143XL, SU9143XL, 9143XL, SU-9143-XL, and SU9143XL (with or without spaces and hyphens). When ordering parts, verify the exact SKU with your supplier to ensure correct fulfillment. Supersedes earlier SU 9143 XL models. Always confirm compatibility with your specific lift truck hub bore and width before purchase.
Q: What lift truck brands and models are compatible with the SU S9143-XL-A-R?
A: The SU S9143-XL-A-R 4 x 2.5 inch wheel configuration is used by Crown, Toyota, Raymond, Yale, Hyster, Jungheinrich, Linde, Clark, Mitsubishi, CAT, and BT electric lift trucks. Compatibility depends on hub bore diameter (approximately 2.0467 inches), hub width (2.5 inches), and bearing configuration. Check your equipment documentation and the OEM wheel specification on your truck before ordering. Serial number ranges and configuration options vary by manufacturer and model year.
Q: How do I diagnose wheel failure on the SU S9143-XL-A-R?
A: Safely lift the truck and inspect each wheel. Symptoms of failure include flat spots or coning on the tread surface, visible cracks or separation between polyurethane and steel core, grinding or rattling when the wheel is spun by hand, excessive lateral movement or play at the hub, or polyurethane chunks missing from the tread. Any of these indicate the wheel must be replaced immediately. Do not operate the truck with a failed wheel, as it can cause load shifts or truck stoppage.
Q: What is the installation procedure for the SU S9143-XL-A-R wheel?
A: Place the truck on a level, secure surface and lift using appropriate jacks until the wheel is clear of the floor. Remove hub fasteners using the correct socket or wrench size. Use a wheel puller or arbor press to remove the old wheel by pulling or pressing perpendicular to the hub. Clean the hub bore of any dirt or debris. Position the new SU S9143-XL-A-R wheel and press or push it fully onto the hub until fully seated. Reinstall and tighten all fasteners to the torque specification listed in your truck manual. Spin the wheel by hand to verify smooth rotation and confirm installation is complete before operating.
Q: What factors affect the service life and wear rate of the SU S9143-XL-A-R?
A: Service life depends on load weight, duty cycle intensity, floor surface type, and environmental conditions. In dry, smooth warehouse environments at normal loads, expect 3500 to 5500 operating hours. Wet floors, cold storage, abrasive concrete, or high-cycle operations reduce service life by 30 to 50 percent. The 97A durometer polyurethane provides superior wear resistance compared to softer compounds. Inspect wheels every 500 hours and replace if tread depth is less than 1/16 inch or if structural damage is observed.