Product Description
Big Joe GWK-WPT-LW is a direct replacement load wheel kit engineered for WPT45 electric pallet trucks, constructed with 95A Durarun polyurethane for high durability. Application-specific design ensures precise fitment and optimal service life. Supplied as a complete assembly with wheel, axle, bearings, and attachment hardware for maintenance or retrofit.
Compatibility: Fits pallet jacks made by Big Joe, model WPT45. SKU: GWK-WPT-LW
Specifications
Material & Construction
| Wheel Tread Material | 95A durometer polyurethane compound ( formulation) |
| Core Construction | Polyurethane tread bonded to injection-molded polymer core |
| Bearing Material | Sealed steel ball bearing |
Part Numbers
| Cross-Reference Part Numbers | Equivalent to GWK-WPT45-LW |
| Compatible Models | Big Joe WPT45 Electric Pallet Truck |
Frequently Asked Questions
Q: Is GWK-WPT-LW the same as GWK-WPT45-LW?
A: GWK-WPT-LW and GWK-WPT45-LW are cross-references for the Big Joe WPT45 truck. Both SKUs provide 95A durometer polyurethane wheels, sealed bearings, and complete installation fasteners. Use GWK-WPT-LW if your machine documentation specifies it; verify your serial number range before ordering.
Q: What is the material construction of the wheel core?
A: GWK-WPT-LW wheels feature an injection-molded polymer core with a 95A durometer polyurethane tread bonded to the outer surface. This composite design balances weight reduction with load support and resilience. The core material resists warping and absorbs impact on uneven concrete floors better than solid cast wheels.
Q: Can I use GWK-WPT-LW on a WPT45 truck with AGM batteries?
A: Yes. GWK-WPT-LW wheels are independent of battery chemistry. The kit works with 24V flooded, AGM, or LiFePO4 batteries because wheel performance is not battery-dependent. However, verify electrical system and charger compatibility separately if replacing batteries. Battery type does not affect wheel load capacity or wear rate.
Q: What bearing type is used and how long do they last?
A: GWK-WPT-LW uses sealed steel ball bearings integrated into each wheel hub. Sealed bearings are pre-lubricated and do not require field servicing. Average bearing life is 3 to 4 years under 8-hour daily operation on dry concrete. Exposure to moisture, salt, or corrosive warehouse chemicals accelerates bearing corrosion. Store jacks indoors when not in use to extend bearing life.
Q: What should I check during installation and how tight should fasteners be?
A: Install wheels in pairs (both load wheels at once) to ensure balanced steering and load distribution. Tighten all fasteners to 22 to 28 foot-pounds using a torque wrench. Do not over-tighten; this crushes the polyurethane tread and causes premature failure. Recheck fastener torque after first 50 truck cycles and every 200 cycles thereafter. Loose wheels will cause noise, vibration, and uneven wear.
Q: How does polyurethane tread wear on different floor surfaces?
A: On smooth sealed concrete, 95A wheels last 3 to 4 years. On rough or unsealed concrete, wear accelerates by 30 to 40 percent due to abrasion. Epoxy or coated floors extend wheel life by 6 to 12 months. Avoid operating on asphalt, gravel, or metal grating; these surfaces cause rapid tread erosion and sidewall damage. Store jacks on smooth concrete or wood pallets, not outdoors.