Product Description
SU S994-A 5 X 3 Poly Wheel Assembly for Electric Lift Trucks by Liftsplus.com. Features polyurethane tread, machined steel hub, sealed ball bearings, and standard fitment for 5 inch diameter by 3 inch width wheel positions on electric lift trucks. OEM part SU S994-A. No cross-reference part numbers available.
Specifications
Material & Construction
| Hub Material | Machined steel core |
Part Numbers & Compatibility
| Manufacturer Part Number | SU S994-A |
| Product Name | SU S994-A 5 X 3 Poly Wheel Assembly |
| OEM Part Number | SU S994-A |
Frequently Asked Questions
Q: Is the SU S994-A a plug-and-play wheel assembly?
A: Yes, SU S994-A is delivered as a complete pre-assembled wheel unit with machined steel hub, sealed ball bearings, and polyurethane tread. You install it by sliding it onto your trucks axle and securing with the retaining clip or bolt. No pressing, bearing installation, or additional assembly is required. Typical installation takes 15 minutes per wheel.
Q: What happens if I use SU S994-A on a truck with a different axle diameter?
A: The SU S994-A assembly will not fit. The hub bore is sized for standard electric lift truck axles. If the axle diameter does not match, the wheel will not slide on or will move side-to-side during operation. Always verify your trucks axle diameter before ordering. Contact us with your truck model and serial number to confirm the correct assembly part number.
Q: Do the sealed ball bearings in SU S994-A require maintenance?
A: No. The sealed ball bearings in SU S994-A are pre-greased and sealed at the factory. They do not require re-greasing or oil changes during normal warehouse operation. If a bearing begins to make grinding noise or the wheel becomes hard to spin, the bearing has failed and the entire SU S994-A assembly must be replaced.
Q: Can I replace just the polyurethane tread on a SU S994-A assembly?
A: No. The SU S994-A wheel and hub are bonded together as a single unit and cannot be separated. If the polyurethane tread is worn out or damaged, you must replace the entire assembly. Attempting to press off the tread will damage the hub and bearings, making the assembly unusable.
Q: What is the maximum load for a single SU S994-A wheel?
A: A single SU S994-A assembly is rated for the load capacity specified on your trucks nameplate, divided by the number of wheels. Most electric lift trucks with four wheels in standard service carry 1,000 to 1,500 pounds per wheel. The sealed bearings and steel hub are engineered for standard material handling duty cycles. Do not exceed your trucks rated capacity.
Q: How do I know if my SU S994-A bearings are wearing out?
A: Signs of bearing failure include a grinding or gritty noise when the wheel spins, increased rolling resistance, or excessive heat in the hub area. Spin the wheel by hand when the truck is off the ground. A healthy bearing spins freely for 5 to 10 seconds. If the wheel stops in 1 to 2 seconds or makes noise, the bearing is failing and the assembly must be replaced.