Product Description
This load wheel kit enhances pallet jack performance with two ultra-poly load wheel assemblies designed for durability and smooth operation. Constructed from high-quality 70D polyurethane, these wheels offer superior hardness, ensuring they won’t shatter like nylon and provide long-lasting use. The wheels are engineered for quiet and easy rolling, leaving no marks on floors and minimizing maintenance costs.
Compatibility: Fits pallet jacks made by Uline, model H-4123. SKU: GWK-4123-LW
Specifications
Compatibility
| OEM Model Compatibility | Uline Model H-4123 |
Dimensional
| Load Wheel Hardness | 70D durometer |
Intended Use
| Application | Designed as a direct replacement for Uline manual pallet jack model H-4123 |
Material
| Polyurethane Grade | Ultra-polyurethane, 70D durometer |
Part Numbers
| Manufacturer Part Number | GWK-4123-LW |
Frequently Asked Questions
Q: Why would I choose GWK-4123-LW instead of the complete kit GWK-4123-CK?
A: Order GWK-4123-LW if only the load wheels show wear, noise, or degradation. The load wheels carry the majority of the pallet weight and wear first. If your steer wheels are still rolling smoothly and quietly, replacing only the load wheels will save time and cost. GWK-4123-LW is a direct replacement for Uline model H-4123. Pair it with steer wheel replacement only if needed.
Q: What bearing type is pre-installed on GWK-4123-LW wheels?
A: GWK-4123-LW wheels arrive pre-assembled with precision ball bearings and fasteners. You do not need to disassemble or service bearings before installation. The bearings are sealed or shielded to resist moisture and contaminants. If a bearing fails after installation, it indicates the wheel was overloaded, improperly installed, or the axle was bent. Do not attempt to repair; order a replacement wheel assembly.
Q: Will these wheels fit on my old axles, or do I need new axles too?
A: GWK-4123-LW is designed to fit the original axles on your Uline H-4123 jack. If your axles are bent, corroded, or scored, the new wheels will not roll smoothly. Inspect axles for straightness by spinning the old wheel by hand. If you feel wobbling or hear grinding, replace the axles along with the wheels. Order replacement axles from the same supplier, matching the original diameter (typically 0.75 inches).
Q: How do I check if my wheels are 70D ultra-poly and not a cheaper alternative?
A: GWK-4123-LW wheels are stamped or molded with the durometer rating. Look on the wheel sidewall for "70D" or "70A+" markings. Genuine ultra-poly wheels are noticeably harder than standard 92A and do not compress when pressed by a fingernail. If the wheel compresses easily, it is 92A standard poly, not 70D ultra-poly. Verify the SKU matches exactly: GWK-4123-LW.
Q: Is maintenance required after installation, and how do I extend wheel lifespan?
A: After installation, check that fasteners are tight after 8 hours of operation and again weekly for the first month. Inspect wheels monthly for flat spots, cracks, or foreign material. Keep wheels clean and dry; wash if exposed to oils or solvents, which can soften polyurethane. Avoid sudden directional changes and do not exceed the jack load rating. Proper use extends wheel life from 18 to 36 months.