Product Description
SU S351-A is a polyurethane load wheel assembly designed for electric pallet trucks, with a polyurethane tread, 5.000 inch outside diameter, 2.625 inch tread width, and integrated greaseable bearing, compatible with standard electric lift truck wheel applications.
Specifications
Material
| Core Material | Steel |
Part Numbers
| Manufacturer Part Number | SU S351-A |
Frequently Asked Questions
Q: What is the main difference between SU S351 and SU S351-A?
A: SU S351 is the wheel component only. SU S351-A is a complete pre-assembled wheel and hub assembly ready to bolt onto your truck. If you are replacing just the wheel tread and your bearing and hub are still good, order SU S351. If you need a complete replacement assembly, order SU S351-A. The SU S351-A includes integrated greaseable bearing and mounting hardware.
Q: What are the exact dimensions of the SU S351-A assembly wheel?
A: Outside diameter is 5.0 inches. Tread width is 2.625 inches. Core material is steel. The wheel is polyurethane molded with 98 Shore A hardness. Measure your equipment or consult the manual to confirm these dimensions match your truck before ordering. If your truck requires a 5 x 3.0 or 4.5 x 2.5 wheel, the SU S351-A is not the correct part.
Q: Is the SU S351-A suitable for outdoor or rough concrete warehouse floors?
A: The SU S351-A is designed for standard indoor and outdoor warehouse use on reasonably smooth concrete. The 98 Shore A polyurethane tread provides adequate grip on clean and slightly wet floors. If your warehouse has severely rough concrete, debris fields, or outdoor gravel areas, the softer tread will wear faster. For extreme conditions, consult the equipment manufacturer about alternative wheel materials or consider a softer durometer option if available.
Q: How do I install the SU S351-A assembly on my pallet truck?
A: First, remove the truck load completely and position the truck on a level surface. Lift one end of the truck frame using a hydraulic pallet jack or hoist. Remove the bolt securing the old wheel assembly. Slide the old assembly off the axle. Align the SU S351-A onto the axle and install the bolt finger-tight. Lower the truck gently and tighten the bolt securely with a wrench. Do not operate the truck until all wheels are installed and bolts are fully tightened.
Q: What bearing maintenance does the SU S351-A greaseable bearing require?
A: Grease the bearing every 6 to 12 months using a standard lithium grease and a grease gun. Locate the grease fitting on the wheel hub, attach the grease gun, and pump grease until a small amount appears around the wheel seal. Do not over-grease. Annual greasing is typical for standard warehouse use. In wet environments, increase greasing to twice yearly. If the bearing still spins rough after greasing, it has likely failed and the assembly must be replaced.
Q: How long does the SU S351-A assembly last before replacement?
A: Typical lifespan is 2 to 5 years depending on usage intensity and floor conditions. Heavy daily use in rough warehouse environments shortens lifespan. Lighter use in clean indoor environments extends lifespan. Regular greasing and inspection increase lifespan. If the wheel begins to wobble, make grinding noise, or does not roll freely, end-of-life has been reached. Do not attempt to repair individual bearing or wheel components. Replace the complete assembly for safety.