Product Description
GW 666-A Load Wheel Assembly for electric lift trucks and pallet jacks features 3.25 inch diameter, 3.75 inch width, 20 mm precision bore, and oil-resistant 95A polyurethane tread for high wear resistance and smooth rolling. Designed for compatibility with major electric pallet jack platforms.
Wheel Dimensions:
Wheel includes installed bearings
Specifications
Material
| Core Material | Machined steel insert |
| Tread Hardness | 95A Shore durometer |
| Bearing Material | High carbon chrome steel (bearing races and balls) |
Part Numbers
| OEM Part Number | GW 666-A |
| Manufacturer Part Number | GW 666-A |
Wheel Dimensions
| Material | |
| Outside Diameter | |
| Inside Diameter | |
| Width Side to Side | |
| Tread Profile | |
| Bore Depth | |
| Hub Width | |
| Bore Outside Diameter |
Frequently Asked Questions
Q: Is GW 666-A compatible with my electric pallet jack model?
A: GW 666-A features a 20 mm precision bore and is designed for major electric pallet jack platforms. Verify your jacks axle diameter matches 20 mm before ordering. This wheel assembly works on standard electric lift trucks with compatible axle configurations. Check your equipment manual or contact your OEM for specific model compatibility, as mounting bracket spacing varies by manufacturer.
Q: What does 95A Shore durometer mean for the wheel tread?
A: 95A Shore durometer indicates the hardness and wear resistance of the polyurethane tread material. This rating means the wheel provides excellent wear resistance for high-mileage warehouse environments while maintaining smooth rolling characteristics. The oil-resistant formulation prevents deterioration when exposed to warehouse floor contaminants. Do not use 95A wheels on rough or outdoor surfaces; tread may chunk or delaminate prematurely.
Q: Are installed bearings included with GW 666-A?
A: Yes. GW 666-A includes pre-installed high carbon chrome steel bearings. No bearing installation or replacement is required at point of sale. Bearings are sealed for the life of the wheel. When the wheel reaches end of life, replace the complete assembly rather than attempting to repack or service bearings.
Q: How do I diagnose if my wheel needs replacement?
A: Watch for these symptoms: flat spots or visible chunks missing from the tread, side-to-side wobble indicating bearing wear, squeaking or grinding noise during operation, or visible oil residue on the tread surface. Measure the wheel diameter; if it has worn below 3.0 inches, replacement is necessary. Wheels with tread cracks or delamination cannot be repaired and must be replaced as a set to maintain balanced performance.
Q: What is the expected lifespan of a GW 666-A wheel?
A: Lifespan depends on duty cycle and floor conditions. In standard warehouse use, 95A polyurethane wheels typically last 18 to 36 months. Heavy-duty or continuous operation may reduce this to 12 to 18 months. Polished concrete and clean floors extend life; rough concrete reduces it. Avoid exposure to petroleum products, solvents, or extreme heat, as these degrade the polyurethane and shorten service life significantly.
Q: What tools and safety steps do I need to replace the GW 666-A wheel?
A: You will need a socket set or wrench to remove the axle fasteners, a hydraulic jack or lift to raise the unit safely, and a 20 mm bore alignment tool or mandrel to install the new wheel. Always engage the truck emergency brake and block wheels before lifting. Ensure the new wheel spins freely on the axle with no drag or noise. Do not operate the truck until all four wheels are confirmed secure and spinning.