Product Description
3.375 X 2.625 Poly Load Wheel
Frequently Asked Questions
Q: Is SU S319 a polyurethane or solid rubber wheel?
A: SU S319 is a polyurethane load wheel, which provides better grip on smooth floors and lower rolling resistance compared to rubber. The 3.375 x 2.625 inch dimension indicates it is a compact wheel for small pallet jacks or stackers. Polyurethane resists oil and some chemicals but can harden in freezer environments (below 32 degrees F). Do not use in extreme cold without testing traction first.
Q: What trucks or jacks use the SU S319 wheel?
A: SU S319 is commonly used on manual and electric pallet jacks, hand stackers, and smaller reach trucks in the 2,000-3,000 lb capacity range. It is not suitable for full-size sit-down forklifts. Check your equipment nameplate against the manufacturer parts list. Crown, Yale, Hyster, and Raymond all have compatible models, but compatibility is model-specific—do not guess based on size alone.
Q: What is the load capacity per wheel for SU S319?
A: SU S319 typically has a static load rating of 600-800 lbs per wheel depending on bearing specification. Total truck capacity is divided equally among all load wheels, so a 4-wheel pallet jack with 3,000 lbs total capacity would see roughly 750 lbs per wheel. Do not exceed the nameplate rating. Overloading causes bearing overheating and premature polyurethane compression.
Q: How do I install SU S319 on a pallet jack?
A: Place the jack on blocks with the load wheel assembly elevated and fully accessible. Remove the axle cotter pin or bolt using a socket wrench. Slide the old wheel off, position the new SU S319 wheel on the axle, and reinstall the fastener. Torque to 10-15 ft-lbs (check your jack manual). Spin the wheel by hand to verify smooth operation. Do not over-tighten—this crushes the bearing.
Q: What is the typical service life of SU S319 wheels?
A: Under normal warehouse conditions (40 hours per week on clean, smooth floors), SU S319 wheels typically last 4-6 years before the polyurethane compresses and traction reduces. Heavy-use environments (100+ hours per week, rough floors) may see failure in 2-3 years. Inspect quarterly for flat spots and uneven wear. If rolling resistance increases noticeably or the wheel surface becomes shiny and slick, replacement is due.