Product Description
Replacement polyurethane load wheel 97A hardness for electric lift trucks with SKU SU S458-XL
Specifications: 5.000 inch diameter x 3.875 inch width (5.000" x 3.875" | 5 x 3.88 wheel | 5 x 3-7/8 | 127.00mm x 98.42mm)
Specifications
Material
| Wheel Durometer | 97A Shore hardness |
Part Numbers & Compatibility
| SKU | SU S458-XL |
| OEM/Manufacturer Part Number | SU S458-XL |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 5 |
| Inside Diameter | 2.188 |
| Width Side to Side | 3.875 |
| Tread Profile | 3/8 Radius |
| Bore Depth | 0.67 |
| Bore Outside Diameter | 2.4384 |
Frequently Asked Questions
Q: What is the 97A Shore hardness specification on the SU S458-XL wheel and why does it matter?
A: The SU S458-XL has a 97A Shore A hardness rating, meaning the polyurethane is relatively stiff and durable. This hardness resists wear and cuts better than softer wheels but provides less shock absorption. The 97A rating is suitable for normal industrial duty cycles. If your truck operates on very rough surfaces, a softer wheel (92-94A) might reduce vibration. If operating conditions are extremely harsh, the 97A may still wear faster than expected.
Q: Is the SU S458-XL a complete assembly or just the wheel?
A: The SU S458-XL is a replacement polyurethane load wheel, not the complete assembly. If you need the bearing and mounting hardware, you will need to retain your existing bearing or order the SU S458-A assembly. The SU S458-XL wheel fits standard 2.188 inch bore electric lift truck axles with 3.875 inch width spacing.
Q: Can I use the SU S458-XL on both front and rear load wheels, or is it specific to one position?
A: The SU S458-XL is a load wheel suitable for rear (drive) wheel positions on electric lift trucks. Front wheels typically experience less load and wear differently. Confirm the correct position in your truck manual before installation. Installing a rear load wheel in a front position will result in faster wear because the wheel durometer and design are optimized for higher loads.
Q: How do I check if the SU S458-XL wheel fits my lift truck before purchasing?
A: Measure the axle bore diameter on your truck with calipers. It must be 2.188 inches. Measure the available width between the mounting flanges or spacers. It must be 3.875 inches (or very close). Check the truck model number and serial range in your manual to confirm wheel compatibility. If these measurements do not match, the SU S458-XL will not fit correctly and must not be forced onto the axle.
Q: What is the lifespan of the SU S458-XL wheel and when should I replace it?
A: The SU S458-XL typically lasts 2,000 to 4,000 operating hours depending on load weight, surface conditions, and driving style. Replace the wheel when you observe visible tread wear flats, cracks radiating from the bore, chunks missing from the tread, or uneven side wear. Do not rely on visual wear alone. If the wheel begins to vibrate or create a thumping noise during operation, stop immediately and inspect for damage before continuing.