Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What lift truck models does the SU S377-XL-A load wheel assembly fit?
A: The SU S377-XL-A is designed for electric lift truck drive and load wheel positions on mid-range pallet jacks and walkie stackers. Verify your truck model and serial range before ordering; assembly fitment depends on axle diameter and hub bore compatibility. Cross-check the existing wheel hub bore size (typically 1.938 to 2.165 inch ID) against the S377-XL-A specifications to confirm fit.
Q: Is the SU S377-XL-A a complete wheel assembly or just the wheel?
A: The S377-XL-A is a complete load wheel assembly including the wheel, hub, and bearing surfaces. It is a plug-and-play replacement for compatible lift trucks; no additional hub or bearing purchase is required. Confirm with your equipment manual that your current assembly matches this style before ordering.
Q: What is the load rating and durometer hardness for this wheel?
A: The SU S377-XL-A uses Cushothane XL polyurethane material with a 97A Shore durometer rating, suitable for load wheel duty on electric lift trucks rated up to typical Class 2 duty (3000-5000 lb capacity). Maximum load is determined by the truck frame rating, not the wheel alone. Do not exceed the lift truck manufactures maximum rated capacity.
Q: How long does the SU S377-XL-A wheel last under normal warehouse use?
A: Typical lifespan is 2-4 years of daily warehouse use before noticeable wear or flat-spotting occurs. Lifespan depends on floor surface (concrete vs. tile), load consistency, and maintenance. Inspect quarterly for cracks, uneven wear, or hub play. Replace if flat-spots exceed 0.25 inch or if the wheel no longer seats fully on the axle due to hub wear.
Q: What tools and steps are required to replace the SU S377-XL-A?
A: Replacement requires a socket wrench (typically 17mm or 19mm depending on axle bolt size), jack stands, and 15-30 minutes per wheel. Lift the truck with jack stands under frame rails only. Remove the axle bolt and retainer clip, slide off the old assembly, slide the new S377-XL-A onto the axle, reinstall bolt and clip, torque to 25-35 ft-lb (verify torque spec in truck manual), and test for play. Do not operate until bolt is fully secured.
Q: Does the SU S377-XL-A require any maintenance after installation?
A: No routine maintenance is required; the assembly is sealed. However, inspect visually every 500 hours of use for cracks, hub looseness, or contamination. Clean debris from wheel surfaces monthly. If hub play develops (wheels spin loosely on axle), the assembly must be replaced; bearing surfaces cannot be re-packed or adjusted on this sealed design.