Product Description
This load wheel kit enhances the performance of Mighty Lift ML55-II and ML55L Frame pallet jacks. It includes two black Ultra-Poly load wheels with a hardness rating of 70D, ensuring durability and resistance to shattering compared to nylon alternatives. The non-marking material is ideal for environments requiring floor protection, offering smoother movement and reduced noise for increased productivity.
Compatibility: Fits pallet jacks made by Mighty Lift, model ML55-II & ML55L Frame. SKU: GWK-BFII-LW
Specifications
Compatibility
| Compatible Equipment Model | ML55-II, ML55L Pallet Jack Frame |
Material
| Axle Material | Hardened steel |
| Bearing Material | Bearing steel, sealed |
| Load Wheel Material | Ultra-Poly |
| Load Wheel Hardness | 70D |
Performance
| Floor Impact | Non-marking, suitable for finished and sensitive floor surfaces |
| Durability | Resistant to shattering compared to nylon alternatives |
| Noise Reduction | Offers smoother movement and reduced noise for increased productivity |
Part Numbers
| Cross-Reference Part Numbers | Direct replacement for 150-1077, matches 88092400 |
Frequently Asked Questions
Q: What are the cross-reference and equivalent part numbers for GWK-BFII-LW?
A: GWK-BFII-LW is equivalent to part number 150-1077 and matches OEM part 88092400 for Mighty Lift ML55-II and ML55L Frame jacks. These are direct replacements with identical bore, axle length, and load rating. If you encounter a parts list with 150-1077 or 88092400, you can confidently order GWK-BFII-LW. Always confirm your jack frame is ML55-II or ML55L before substituting; older ML55 (non-II) uses different axle specifications. If your dealer only stocks 88092400, it is the same item.
Q: How do the 70D Ultra-Poly wheels in GWK-BFII-LW perform compared to nylon or standard 92A wheels?
A: The 70D Ultra-Poly wheels in this load wheel kit offer a balanced profile. Durability: 70D is significantly harder and more shatter-resistant than 92A, making it ideal for rough warehouse floors, ramps, and outdoor environments. The wheels are non-marking and do not degrade floors or pick up black residue. Ride quality: 70D is stiffer than 92A, so you may feel slightly more vibration on smooth concrete. Nylon alternative: GWK-BFII-LW-N uses nylon cores with 70D polyurethane tread, adding rust resistance for cold storage. Choose 70D Ultra-Poly for general warehouse use; choose nylon for cold storage or corrosive environments.
Q: Will GWK-BFII-LW load wheels fit my pallet jack if it is not an ML55 model?
A: No. GWK-BFII-LW is validated only for Mighty Lift ML55-II and ML55L Frame models. The load wheel bore is 0.75 inches and the axle is hardened steel, designed for the ML55 series frame geometry. Fitting these wheels onto other models (ML55 non-II, ML55XL, Yale, Toyota, etc.) will result in bore misalignment, axle rattling, and premature bearing failure. Do not attempt this swap. Always verify your jack model and frame serial number before ordering. If you are unsure of your model, provide the nameplate information and we will confirm fitment.
Q: What is the correct procedure to replace load wheels, and do I need to replace both wheels at the same time?
A: Yes, always replace both load wheels as a matched pair. Replacing only one wheel will cause uneven wear on the new wheel and increase stress on the older wheel, leading to premature failure on both sides. Installation: (1) secure the pallet jack on a lift or blocks so the frame is stable; (2) remove cotter pins and castle nuts from both load wheel axles; (3) slide off old wheel assemblies; (4) inspect axles for rust, scoring, or debris; clean with a wire brush if needed; (5) slide new GWK-BFII-LW assemblies onto axles smoothly; (6) install fresh cotter pins and torque castle nuts snug (not over-tight); (7) spin wheels by hand to ensure free rolling with no drag or noise. Do not operate the jack until both load wheels spin freely. Installation time is typically 30-45 minutes per pair.
Q: What load and operating specs apply to GWK-BFII-LW wheels?
A: Load capacity is rated to the ML55-II/ML55L frame maximum of 5,500 lbs. Operating temperature range is 0 to 140 degrees F. Axle material is hardened steel with sealed bearing steel construction. Floor interaction is non-marking, suitable for finished floors, polished concrete, and sensitive surfaces. Do not exceed rated load or operate in extreme cold or heat outside the specified range. The 70D durometer rating indicates excellent resistance to shattering and marking. Expected service life in typical warehouse use is 2-4 years; in harsh environments or constant outdoor use, 1-2 years. Maintenance: inspect wheels during pre-shift checks and clean wheel wells of debris weekly to prevent bearing contamination.
Q: How do I diagnose if load wheels are failing and what symptoms indicate replacement is urgent?
A: Warning signs include: (1) visible cracks, chunks missing, or flat spots on the wheel; (2) jack pulls to one side despite balanced load; (3) load wheels are shiny or polished, indicating tread is worn smooth; (4) grinding, clicking, or squealing when rolling; (5) wheel does not spin freely by hand; (6) audible clicking from load wheel area during normal operation. If any of these symptoms appear, stop using the jack immediately and replace the load wheel set. Do not attempt to repair or patch cracked wheels; replacement is the only safe option. Contact our parts team and provide your model number for immediate shipment of GWK-BFII-LW.