Product Description
Complete Wheel Kit GWK-MLX55-CK engineered for Mobile MLX55 manual pallet jacks, includes ultra-polyurethane 70D load rollers (2.90 x 3.60 )
Compatibility: Fits pallet jacks made by Mobile, model MLX55. SKU: GWK-MLX55-CK
Specifications
Material & Construction
| Load Wheel Material | Ultra-Polyurethane compound |
| Steer Wheel Material | Polyurethane |
| Axle Material | High-strength steel |
| Finish | Machined and polished |
Part Numbers & Compatibility
| Manufacturer Part Number | GWK-MLX55-CK |
| OEM Part Number | GWK-MLX55-CK |
| Compatible Truck Model | Mobile MLX55 |
Frequently Asked Questions
Q: Can I use GWK-MLX55-CK on an older Mobile ML55 jack instead of the newer MLX55?
A: No. GWK-MLX55-CK is engineered exclusively for Mobile MLX55 series jacks. The MLX55 model has different frame geometry, axle diameters, and mounting patterns than the ML55. Using this kit on an ML55 jack will result in poor fit and unsafe operation. Always verify your jack model before ordering wheels.
Q: What does the load roller size 2.90 x 3.60 mean?
A: The dimensions 2.90 x 3.60 refer to the nominal outside diameter and width of the load wheel in inches. 2.90 inches is the wheel diameter and 3.60 inches is the width. These dimensions are fixed for the MLX55 model. Do not order wheels with different dimensions as they will not fit the axle properly.
Q: Is GWK-MLX55-CK a complete kit with steer wheels and load wheels?
A: Yes. GWK-MLX55-CK includes ultra-polyurethane 70D load rollers for the rear and polyurethane steer wheels for the front, plus all required axles, bearings, and fasteners. This is a full replacement kit for all four wheels. If you need only the rear load wheels, order GWK-MLX55-LW instead.
Q: Why does GWK-MLX55-CK specify ultra-polyurethane for load wheels and standard polyurethane for steer wheels?
A: Load wheels support the full weight of the load and require a tougher, more durable material. Ultra-polyurethane at 70D hardness provides superior wear resistance for rear wheels. Steer wheels need to be more flexible and responsive for directional control, so standard polyurethane is used. This dual-material design optimizes performance and extends service life.
Q: What is the difference between machined-and-polished axles and standard steel axles?
A: GWK-MLX55-CK includes high-strength steel axles that are machined and polished for precision fit and reduced friction. Machining ensures exact diameter tolerances so wheels spin freely without wobble. Polishing creates a smooth surface that resists corrosion and extends bearing life. Standard unfinished axles are more prone to rust and uneven wear.
Q: Can I mix old and new wheels or must I replace all four at once?
A: For optimal performance and safety, replace all four wheels at the same time using GWK-MLX55-CK. Mixing old and new wheels causes uneven rolling resistance, poor steering response, and accelerated wear on new wheels. If budget is a constraint, replace rear load wheels first (use GWK-MLX55-LW), then steer wheels in the next maintenance cycle.