Product Description
Load wheel replacement kit designed for Crown PTH50 manual pallet jacks, featuring ultra-polyurethane load rollers with 70 Shore D durometer rating. Kit includes two factory-assembled load wheel units with pre-installed sealed ball bearings, steel axles, and roll pin fasteners for direct installation.
Compatibility: Fits pallet jacks made by Crown, model PTH50. SKU: GWK-PTH50-LW
Specifications
Material & Construction
| Wheel Material | Ultra-polyurethane compound, 70 Shore D durometer |
| Axle Material | Steel alloy with roll pin retention |
Part Numbers & Compatibility
| Manufacturer Part Number | GWK-PTH50-LW |
| Alternative Part Number | MRK-GWK-PTH50-LW-68161142 |
| Equipment Compatibility | Crown PTH50 manual pallet jack (newer models) |
Frequently Asked Questions
Q: Is GWK-PTH50-LW a complete wheel kit or a load-wheel-only replacement?
A: GWK-PTH50-LW is a load wheel replacement kit only. It includes two factory-assembled load wheel units with sealed ball bearings and steel axles. If your steer wheels (rear wheels) also need replacement, you must order them separately. The kit is designed for technicians who need only the front load wheels replaced while the rear steer wheels are still serviceable.
Q: What is the material and durometer rating of GWK-PTH50-LW wheels?
A: GWK-PTH50-LW features ultra-polyurethane load rollers with a 70 Shore D durometer rating. This hardness rating provides excellent floor grip and rolling efficiency on concrete and asphalt. 70 Shore D polyurethane resists wear better than softer compounds and handles frequent use in high-traffic warehouse areas. The wheels are molded over steel cores with integrated sealed ball bearings for durability.
Q: What are the cross-reference part numbers for GWK-PTH50-LW?
A: GWK-PTH50-LW is cross-referenced as MRK-GWK-PTH50-LW-68161142. This alternative part number may appear on invoices from different distributors or supplier systems. Both SKUs are identical and interchangeable. Always verify the full SKU matches your purchase order to avoid receiving incompatible steer wheel kits by mistake.
Q: How do I install GWK-PTH50-LW on my Crown PTH50 pallet jack?
A: Installation takes approximately 20 minutes. (1) Lower the jack completely and position it on a level surface. (2) Use a 9/16 inch wrench to remove the axle nuts and cotter pins from the existing load wheels. (3) Slide the old wheels off the axles. (4) Align the new load wheel units on the front axles, ensuring the wheel face is flush with the jack frame. (5) Install the steel axles through the wheel hubs and secure with axle nuts and new cotter pins. (6) Verify wheels spin freely without binding. The kit includes roll pin fasteners; ensure these are installed in the pre-drilled holes on the axle.
Q: What should I check if GWK-PTH50-LW wheels do not roll smoothly after installation?
A: If wheels bind or do not spin freely, verify the following: (1) Axle nuts are not over-tightened. Hand-tighten the nut until snug, then back off one-quarter turn so the wheel spins freely. (2) The cotter pin is not bent into the wheel path. (3) The jack frame is not bent; a bent frame can pinch the axle and prevent smooth rotation. (4) Bearing seals are not damaged. If you dropped or struck the wheels during shipping, internal bearing damage can cause binding. Contact your supplier for a replacement wheel assembly; sealed bearings cannot be serviced in the field.
Q: Can GWK-PTH50-LW wheels be used on Crown pallet jacks other than the PTH50?
A: GWK-PTH50-LW is engineered specifically for Crown PTH50 manual pallet jacks. The axle diameter, bolt pattern, and mounting geometry are unique to the PTH50. Do not attempt to force these wheels onto Crown PTH45, PTH40, or other non-PTH50 models. Axle misalignment can cause wheel wobble and create a safety hazard. Always verify your jack model before ordering. If you need load wheels for a different Crown model, contact your parts supplier with your exact model number and serial range.