GWK-PTH50N-CK-SS

Frequently Asked Questions

Q: What does GWK-PTH50N-CK-SS include and which Crown pallet jack models fit?
A: GWK-PTH50N-CK-SS is a complete wheel kit assembly for Crown PTH50 manual pallet jacks. The kit includes two load wheels (Ultra-Poly 70D), two steer wheels (Polyurethane 95A), all axles, hardware, and installation fasteners. This is the newer PTH50 variant indicated by the N suffix. It is compatible with Crown PTH50 and Newer PTH50 production models. Verify your jack serial number matches the newer production range before ordering. The kit supports the full 5000 lbs load capacity at a 24 inch load center.

Q: What are the stainless steel bearing and wheel material specifications?
A: GWK-PTH50N-CK-SS features premium stainless steel ball bearings throughout the kit for superior corrosion resistance. Load wheels are Ultra-Polyurethane 70D (firm, for rolling performance), while steer wheels are Polyurethane 95A (softer compound, for directional control). The axle material is hardened carbon steel with integrated seal protection. Stainless bearings eliminate rust and seizing, making this kit ideal for food plants, freezer warehouses, and washdown areas. The 95A steer wheels provide responsive steering even in humid or wet conditions without binding.

Q: What is the OEM part number and are there cross-references for GWK-PTH50N-CK-SS?
A: The manufacturer and OEM part number for GWK-PTH50N-CK-SS is 310701-121-KIT. This is the definitive SKU used by Crown and their authorized distributors. Always order using this part number or the full SKU GWK-PTH50N-CK-SS. Cross-reference or equivalent part numbers from third-party manufacturers have not been published for this stainless steel variant. If you need to verify fitment or locate additional inventory, reference the OEM part number 310701-121-KIT in Crown documentation.

Q: Is GWK-PTH50N-CK-SS compatible with older Crown PTH50 models?
A: GWK-PTH50N-CK-SS is designed for newer Crown PTH50 production models only. The N designation indicates compatibility with later-generation jacks that may have different axle tolerances or mounting geometry compared to older PTH50 models. Do not install this kit on older PTH50 pallet jacks (serial numbers below 7-000000 range or marked as early production). Installing a newer-variant kit on an older frame can result in loose wheel fit or axle misalignment. Always confirm your jack serial number and production date before ordering.

Q: What are the installation steps for GWK-PTH50N-CK-SS?
A: Installation takes approximately 45 minutes for a complete wheel kit replacement. (1) Lower the jack fully and position it on a level, clean surface away from foot traffic. (2) Use a 9/16 inch wrench to remove axle nuts and cotter pins from all four wheels. (3) Slide the old load wheels off the front axles, then the steer wheels off the rear axles. (4) Install new load wheels (70D, Ultra-Poly) on the front axles first. (5) Install new steer wheels (95A, Polyurethane) on the rear axles. (6) Hand-tighten axle nuts on all wheels, then back off one-quarter turn to allow free rotation. (7) Install new cotter pins and bend the legs to secure. (8) Test wheel spin and steering before loading. Do not operate the jack until all wheels rotate freely and are fully secured.

Q: Why is GWK-PTH50N-CK-SS preferred for food service and wet environments?
A: GWK-PTH50N-CK-SS is engineered for demanding food-service and wet-environment applications. Stainless steel ball bearings resist rust and seizing even with frequent washdowns and salt-water exposure. The sealed bearing design prevents water and cleaning chemicals from entering the bearing cavity. Unlike standard steel bearings that corrode and seize within months in wet environments, stainless variants provide 18 to 48 months of reliable service. The 70D load wheels and 95A steer wheels perform well on wet concrete floors. After each washdown, wipe wheels clean and ensure cotter pins and axle nuts remain tight, as moisture can promote loosening. Inspect quarterly for corrosion or damage to the frame.