Crown PTH50 Load Wheel Kit - Replacement

Frequently Asked Questions

Q: What does the N suffix in GWK-PTH50-LW-N indicate?
A: The N suffix denotes the nylon wheel material variant of the Crown PTH50 load wheel kit. GWK-PTH50-LW-N is supplied with nylon load wheels, while the standard GWK-PTH50-LW is supplied with polyurethane wheels. Both kits fit Crown PTH50 pallet jacks; the difference is the wheel material. Nylon wheels offer lower rolling resistance and superior chemical resistance, while polyurethane wheels run quieter and provide better floor protection. Choose the variant that best suits your operating environment.

Q: Are GWK-PTH50-LW-N and GWK-PTH50-LW interchangeable?
A: Yes, both kits fit Crown PTH50 pallet jacks and share the same dimensions, bearings, axles, and hardware. The only difference is the wheel material: the N variant uses nylon, while the standard kit uses polyurethane. You can switch between the two depending on your application. Nylon is preferred for smooth, debris-free floors and wet or chemical-exposure environments; polyurethane is preferred where quieter operation and gentler floor contact are priorities.

Q: What are the cross-reference parts for GWK-PTH50-LW-N?
A: GWK-PTH50-LW-N is equivalent to MRK-GWK-PTH50-LW-68161142 and functionally interchanges with LWK-1106. It also cross-references to GPSN080 in Crown documentation. These alternative part numbers represent the same wheel assembly and can be used interchangeably from different distributors. Always verify the complete SKU on your purchase order matches the kit on hand to avoid installation errors.

Q: What wheel material and specifications does GWK-PTH50-LW-N provide?
A: GWK-PTH50-LW-N features durable nylon load wheels with precision ball bearings. The kit includes all necessary axles and hardware for direct installation. Nylon provides low rolling resistance, high load capacity, and excellent resistance to moisture, oils, and chemicals, making it well suited to demanding warehouse environments. Precision ball bearings are sealed and pre-lubricated to minimize friction and reduce rolling resistance. The assembly is ready to install with no additional modifications required to your pallet jack.

Q: How do I diagnose if GWK-PTH50-LW-N wheels are worn and need replacement?
A: Worn load wheels will exhibit these symptoms: (1) flat spots or visible wear patterns on the wheel surface, (2) audible grinding or squeaking during operation, (3) reduced steering response or drifting to one side, (4) increased effort required to push the loaded jack. Inspect wheels monthly by visually checking the contact face for damage. If you observe flat spots greater than one-quarter inch deep or cracks in the nylon, replace the wheel assembly immediately. Do not attempt to repair or resurface sealed load wheels; replacement is the only reliable solution.

Q: What maintenance schedule is recommended for GWK-PTH50-LW-N?
A: Sealed bearing wheels require minimal maintenance. Inspect axle hardware (nuts and cotter pins) quarterly to ensure they remain tight. Clean wheel surfaces monthly to remove dirt, debris, and chemical residue. Although nylon resists moisture and chemicals well, in food-service or wet environments you should still inspect bearings every three months for signs of moisture intrusion or corrosion. If a wheel begins to make noise or wobble, the bearing is likely compromised; replace the entire wheel assembly. Expected service life is 18 to 36 months under normal indoor warehouse use.