Product Description
Enhance your pallet jack's performance with this Complete Wheel Kit, featuring two Ultra-Poly Load Roller Assemblies with a 70D durometer and two Poly Steer Wheel Assemblies, all equipped with bearings, axles, and fasteners. The durable 70D wheels offer superior longevity and smoother operation compared to standard 92A polyurethane wheels, while resisting shattering and marking surfaces. Designed specifically for the ML55-II and ML55L Hydraulic Units, this kit is ideal for environments such as warehouses and factory floors, where noise reduction and resilience against debris are essential.
Compatibility: Fits pallet jacks made by Mighty Lift, model ML55-II & ML55L Hydraulic Unit. SKU: GWK-BFII-CK
Specifications
Material & Construction
| Load Wheel Material | Ultra-polyurethane, Shore 70D |
| Steer Wheel Material | Polyurethane |
| Washers Specification | Steel, plated, 1.25 inch OD, 0.75 inch bore |
Part Numbers
| Compatible Equipment Models | ML55-II, ML55L |
Frequently Asked Questions
Q: What is included in the GWK-BFII-CK Complete Wheel Kit and what makes the 70D durometer wheels different from standard wheels?
A:
Q: Will the GWK-BFII-CK fit my Mighty Lift ML55 or other pallet jack models?
A: The GWK-BFII-CK is designed and tested only for Mighty Lift ML55-II and ML55L Frame models. Do not force this kit onto ML55 (non-II), ML55XL, or other brand jacks. Wheel bore diameter, axle length, and load capacity differ across models. Forcing incompatible wheels can cause binding, premature bearing failure, and unsafe operation. Always verify your jack nameplate or serial number before ordering. If unsure, provide us your model number and we will confirm fitment.
Q: How do I diagnose if my pallet jack wheels need replacement?
A: Watch for these symptoms: (1) Wheels are visibly cracked, flat-spotted, or chunked; (2) Jack pulls to one side despite centered load; (3) Resistance increases suddenly when rolling; (4) Audible grinding or clicking from wheel wells; (5) Wheels are shiny/polished from wear (tread texture is gone). To test, lift the jack with no load, spin each wheel by hand, and listen for grinding. If any wheel drags or is notchy, replace the entire wheel assembly on that corner. Do not replace just one wheel; always do axle-matched pairs (both load wheels or both steer wheels) to maintain balance and prevent uneven wear on new wheels.
Q: What tools and safety steps are required to install the GWK-BFII-CK?
A: You will need a hydraulic jack or lift to raise and support the pallet jack frame safely on blocks; never work under an unsupported frame. Required tools: socket set (typically 13mm and 17mm), wrench, and a bearing/bushing puller if wheels are rusted or stuck. Steps: (1) Raise and block the frame; (2) Remove castle nuts and cotter pins from axles; (3) Slide out old wheel assembly; (4) Inspect axles for rust, scoring, or debris and clean with a wire brush; (5) Insert new wheel assembly with fresh cotter pins and torque castle nuts snug but not over-tight (you should not hear creaking); (6) Spin wheels freely by hand to confirm no drag. Do not operate the jack until all four wheels roll freely. Installation typically takes 45 minutes per wheel set for a technician.
Q: What is the load capacity and lifespan of the GWK-BFII-CK wheels?
A: Load capacity is rated to the jack frame maximum of 5,500 lbs (ML55 series standard). Do not exceed the jack nameplate rating. Lifespan depends on environment and duty cycle. In light-duty warehouses, expect 2-4 years of service. In cold storage or high-traffic environments with daily heavy loads, 1-2 years is typical. The 70D durometer material resists shattering and marking, extending usable life compared to softer 92A wheels in harsh conditions. Maintenance: check for debris in wheel wells weekly and spin wheels during pre-shift inspections. Replace immediately if any wheel shows cracking.
Q: Are there cross-reference or equivalent part numbers for the GWK-BFII-CK?
A: The GWK-BFII-CK is a complete kit and is the primary SKU. If you need only load wheels, order GWK-BFII-LW separately. If you need only steer wheels, contact technical support for availability. Do not mix and match this kit with competitor brands. Mighty Lift replacement wheels are not directly interchangeable with Yale, Toyota, Hyster, or Clark pallet jacks due to axle and bore differences. Always confirm brand and model on your jack frame before ordering.