Product Description
Load wheel for electric pallet trucks, with 3.25 inch diameter and 6.375 inch width, poly tread, press-fit sealed ball bearing, steel core. Suitable for electric lift truck load wheel replacement; compatible with Liftsplus SU 528 applications.
Specifications: 3.250 inch diameter x 6.375 inch width (3.250" x 6.375" | 3.25 x 6.38 wheel | 3-1/4 x 6-3/8 | 82.55mm x 161.92mm)
Specifications
Material & Construction
| Core Construction | One-piece machined steel with bonded polyurethane tread |
Part Numbers
| Manufacturer Part Number | SU 528 |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 6.375 |
| Bore Depth | 0.812 |
| Hub Width | 6.375 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the difference between SU 528 and SU 528-A?
A: SU 528 is the load wheel only with press-fit sealed ball bearing and steel core. SU 528-A is a complete load wheel assembly that includes the wheel, bearings, and mounting hardware pre-assembled. If you need just the wheel, use SU 528. If you need a ready-to-install assembly, use SU 528-A.
Q: Will the SU 528 wheel fit my electric pallet truck?
A: SU 528 is designed for Liftsplus electric lift truck applications with a 3.25 inch diameter and 6.375 inch width. Check your truck manual or existing wheel for matching dimensions: 3.250 inch diameter x 6.375 inch width (82.55mm x 161.92mm). Verify the bore diameter is 1.938 inch before purchasing. If dimensions do not match, contact the manufacturer for your specific model.
Q: How do I install the SU 528 load wheel?
A: Press the wheel onto the axle spindle until the bearing bottoms out against the shoulder. Do not force the wheel onto a damaged or corroded axle. The press-fit sealed bearing should sit flush with the hub. If the wheel wobbles after installation, the axle may be worn. Do not use a torch to heat the wheel during installation as this can damage the polyurethane tread. Use a hydraulic press or bearing installation tool.
Q: What operating limits should I follow with the SU 528?
A: The SU 528 wheel is rated for electric pallet truck load wheel duty. Polyurethane tread material (Cushothane XL) is rated for smooth warehouse floors and light outdoor use. Do not exceed the truck manufacturer us weight rating. Avoid prolonged exposure to oils, solvents, and extreme heat above 140 degrees Fahrenheit as these degrade polyurethane. Maximum speed depends on the truck model, not the wheel itself.
Q: How often should I replace the SU 528 wheel?
A: Replace the SU 528 when the polyurethane tread is worn to 1/8 inch thickness or when the wheel flattens visibly under load. Typical lifespan is 2 to 5 years depending on duty cycle and floor conditions. Inspect quarterly for cracks, chunks missing from the tread, or separation between the tread and steel core. Replace immediately if the bearing is seized or if the wheel is no longer concentric.
Q: Can I get the SU 528 wheel with different hardness ratings?
A: The SU 528 comes with Cushothane XL polyurethane tread, which is the standard formulation for this SKU. If you need a softer tread for slippery floors or a harder tread for rougher surfaces, contact the manufacturer about alternate part numbers like SU 528-XL or other variants in the product line. Swapping only the tread material on an existing wheel core is not recommended.