Product Description
Clark GWK-WP40-LW poly load wheel kit is engineered for CLARK WPL40 electric pallet trucks. Constructed with a polyurethane tread at 95A durometer for high durability and load support. Designed to interface with 27 inch by 46 inch forks. Rated for 4,000 lbs at 24 inch load center. Compatible exclusively with CLARK electric lift truck models using GWK-WP40-LW load wheel assemblies.
Compatibility: Fits pallet jacks made by Clark, model WP3040. SKU: GWK-WP40-LW
Specifications
Material & Construction
| Tiller Arm Construction | Solid steel tubing control tiller arm |
| Frame Material | Steel bar stock pull rods; chrome-plated lifting cylinder |
| Wheel Kit Material | Polyurethane wheel with steel hub |
Part Numbers & Compatibility
| Manufacturer Part Number | GWK-WP40-LW |
| Product Description | Poly Load Wheel Kit, 95A durometer |
| Compatible Models | CLARK WPL40 Electric Pallet Truck |
Frequently Asked Questions
Q: What is GWK-WP40-LW compatible with?
A: GWK-WP40-LW is engineered for Clark WPL40 electric pallet trucks only. It is not interchangeable with Clark WP 3040 or other model lines. Verify your truck model code on the nameplate before ordering. Incompatible wheels will not fit fork geometry and will cause damage to steering linkage.
Q: What is the load capacity for GWK-WP40-LW?
A: GWK-WP40-LW is rated for 4,000 lbs at 24 inch load center with 27 inch by 46 inch forks. Standard pallet depth of 40 to 48 inches places load within rated zone. For loads with approach greater than 24 inches, deduct 10 percent load capacity for each additional 6 inches. Do not exceed nameplate capacity.
Q: What durometer rating do these wheels have and why does it matter?
A: GWK-WP40-LW features 95A durometer polyurethane wheels. This hardness provides good traction on concrete and resilience against cuts from debris. Lower durometer (85A-90A) wheels are softer and grip better on smooth floors but wear faster. Higher durometer (98A-100A) wheels last longer but can slide on slippery surfaces. 95A is the balanced standard for industrial pallet jack service.
Q: How do I inspect for wheel wear or damage?
A: Perform quarterly visual inspection: look for flat spots, cracks in the tread, or chunks missing from sidewalls. Spin each wheel by hand; it should roll freely for 3 to 5 full rotations before stopping. If a wheel sticks or stops after 1 rotation, bearings are seized and the kit must be replaced. Measure wheel diameter; if less than 3.75 inches, replace both wheels as a matched pair.
Q: What fastener material is used and can I substitute hardware?
A: All mounting fasteners in this kit are Grade 5 steel. Do not substitute with stainless, aluminum, or metric fasteners. Grade 5 fasteners are hardened to resist vibration loosening. Mismatched fasteners can back out under load, causing wheel separation and truck failure. Tighten bolts to 25 to 30 foot-pounds; check every 100 operating hours initially, then monthly.
Q: Are sealed bearings included and can they be serviced?
A: Yes, sealed bearings are integrated into each wheel assembly. Sealed bearings are not serviceable; do not attempt to disassemble, clean, or repack them. If a bearing is noisy, grinding, or leaking grease, the entire wheel assembly must be replaced. Sealed bearings typically last 3 to 5 years with proper maintenance. Do not expose wheels to extended water spray or steam washing.