Product Description
GWK-PTH50-CK-NSW is a complete wheel kit engineered for Crown PTH50 manual pallet jacks, featuring ultra-polyurethane wheels with precision ball bearings, reinforced polymer cores, and hardened zinc-plated steel axles. The kit supports a 5000 lb rated load at a 24 inch load center and provides OEM compatibility with GWK-PTH50-CK, GWK-PTH-CK, and GWK-PTH50-LW part numbers. Mechanical dimensions include 2.96 inch by 4 inch load wheels and 7 inch by 2 inch steer wheels, designed for robust industri
Compatibility: Fits pallet jacks made by Crown, model PTH50. SKU: GWK-PTH50-CK-NSW
Specifications
Material & Construction
| Fastener Specification | Grade 8 steel bolts with locknuts |
| Wheel Core Material | Reinforced polymer core |
Part Numbers & Compatibility
| OEM Part Number | GWK-PTH50-CK-NSW |
| Manufacturer Part Number | GWK-PTH50-CK-NSW |
| Cross-Reference Part Numbers | Equivalent to GWK-PTH50-CK, supersedes GWK-PTH-CK, interchangeable with GWK-PTH50-LW |
| Compatible Models | Crown PTH50 (serial range 7-512501 & up, up to and including S/N 7-512500) |
Frequently Asked Questions
Q: What does NSW stand for in GWK-PTH50-CK-NSW, and how is it different from GWK-PTH50-CK?
A: NSW stands for a newer specification variant with enhanced reinforced polymer cores and precision ball bearings engineered for heavy industrial use. GWK-PTH50-CK-NSW supersedes the standard GWK-PTH50-CK and is backward compatible with GWK-PTH-CK machines. The NSW wheels are designed for higher cycle rates and rough surface environments while maintaining the 5000 lb rated load at 24 inch load center. Use GWK-PTH50-CK-NSW for maximum durability.
Q: Which Crown PTH50 serial numbers accept GWK-PTH50-CK-NSW?
A: GWK-PTH50-CK-NSW fits Crown PTH50 pallet jacks with serial numbers from 7-512501 up to and including serial 7-512500. This is a narrow but important serial range that reflects a production run with updated wheel mounting geometry and bearing bore tolerances. Always verify your machine serial on the frame nameplate before ordering. Contact your supplier with your serial if it falls outside this range.
Q: What are the wheel dimensions for GWK-PTH50-CK-NSW?
A: Load wheels measure 2.96 inches diameter by 4 inches wide. Steer wheels measure 7 inches diameter by 2 inches wide. These dimensions are OEM-specification for the Crown PTH50 frame and swivel assembly. The load wheel width (4 inches) distributes the 5000 lb capacity across a wide floor contact area, protecting concrete and reducing puncture risk. Do not substitute wheels of different dimensions as they may not fit the axle or frame mounting points correctly.
Q: Are GWK-PTH50-CK-NSW wheels interchangeable with GWK-PTH50-LW or GWK-PTH-CK?
A: GWK-PTH50-CK-NSW is interchangeable with GWK-PTH50-CK and is equivalent to GWK-PTH-CK for early PTH models. It supersedes GWK-PTH-CK for later production PTH50 machines in the specified serial range. Do not assume interchangeability across all PTH and PTH50 models. Verify serial numbers and axle bore diameters before ordering as a replacement to ensure fit. When in doubt, reference the machine nameplate serial against the kit compatibility data.
Q: What is the rated load capacity of GWK-PTH50-CK-NSW, and are there any operating limit considerations?
A: GWK-PTH50-CK-NSW is rated for 5000 lb at a 24 inch load center, matching the Crown PTH50 pallet jack nominal capacity. The reinforced polymer cores and precision ball bearings are engineered to handle 2000 plus cumulative lift cycles per shift without premature wear. Do not exceed the nameplate rated load. Continuous operation at or above rated capacity (more than 4 hours per shift daily) may reduce wheel life to 12 to 18 months.
Q: Are GWK-PTH50-CK-NSW bearings sealed, and what is the bearing type?
A: Yes. GWK-PTH50-CK-NSW uses precision sealed ball bearings (not roller bearings) in both load and steer wheel assemblies. Sealed ball bearings provide smoother rotation and lower friction compared to sealed roller bearings, which reduces push effort on the jack handle. Ball bearings are pre-lubricated with synthetic grease and do not require maintenance. Replace the entire wheel assembly if bearing play or drag develops.