GWK-W50Z-LW

Frequently Asked Questions

Q: Is GWK-W50Z-LW compatible with other Hyster W-series models?
A: GWK-W50Z-LW is engineered specifically for Hyster W50Z electric pallet trucks. Cross-compatibility with other W-series models depends on axle diameter, bearing bore, and hub specifications. W50Z uses 0.5625 inch axle pins and larger bearing bores than W45 series equipment. Do not assume W50Z wheels fit W45Z or W45ZHD equipment. Always verify your equipment model designation and axle specifications before ordering. Using incompatible wheels may result in improper fit, bearing damage, or equipment failure.

Q: What is the 95A polyurethane grade and typical service life under heavy-duty operation?
A: Wheels feature Durarun 95A polyurethane tread compound engineered for heavy-duty service applications. The 95A Shore hardness provides balanced wear resistance and floor grip. Service life typically ranges 14-18 months under continuous shift operation with proper maintenance. Wheels exhibit minimal floor marking tendency and maintain consistent rolling resistance across wide temperature range. Inspect for wear quarterly in heavy-duty environments. Replace wheels when tread thickness reduces by 50 percent or visible flat spots develop.

Q: What bearing and fastener specifications are included in this kit?
A: Kit includes precision-sealed bearing assemblies with hardened steel axles rated for W50Z load specifications. All fasteners are OEM-specification cadmium-plated steel meeting Hyster engineering standards. Roll pin retention system prevents axle migration during operation. Cotter pins and fasteners are included. Bearing races are precision-ground to strict tolerances. Do not substitute non-OEM fasteners or bearings as they may not meet load rating requirements. All components are matched to ensure proper fit and durability.

Q: How do I service the grease fittings and what lubrication intervals are required?
A: Kit features standard Zerk grease fittings on sealed bearing assemblies. Use NLGI Grade 2 multi-purpose grease, SAE equivalent to ISO VG 100. Lubricate every 250 operating hours or monthly, whichever comes first. For heavy-duty service exceeding 6 hours daily, increase frequency to every 125 hours. Pump grease until fresh lubricant appears at bearing seals, then stop. Excessive greasing forces past bearing seals and attracts contamination. Purge grease every 500 operating hours by pumping until clean lubricant emerges.

Q: What is the string guard material and how important is it for safety?
A: String guards are fabricated from glass-filled nylon providing strength and flex resistance. These guards prevent rope, strapping material, and chains from wrapping around wheel axles during operation. Wrapped material on spinning wheels creates immediate emergency stop condition and may damage equipment. Inspect string guards monthly for cracks, delamination, or separation from hub. Replace damaged guards immediately. Keep guards clean of accumulated debris and wrapped material. String guards are critical safety components and must remain intact during operation.

Q: What is the installation procedure and estimated labor time required?
A: Estimated labor time is 1-2 hours per wheel assembly for trained technician. Raise jack to full height and lower forks completely. Remove fasteners and cotter pins from existing wheel assembly. Extract old wheels using bearing puller tool at controlled speed without hammering. Press new wheels and bearings onto hardened steel axles using proper bearing press. Install new assembly in frame and secure fasteners with cotter pins. Verify wheel rotation is smooth through complete load cycle test. Do not operate equipment until wheels confirm proper installation and free rotation.