Product Description
5 X 3 Poly Wheel Xl Assembly
Frequently Asked Questions
Q: What is included in the SU S994-XL-A assembly?
A: SU S994-XL-A is a complete pre-assembled wheel unit consisting of a 5.00 inch diameter by 3.00 inch width polyurethane tread, machined steel XL hub, and sealed ball bearings. The assembly is ready to slide onto your trucks axle. No pressing, bearing installation, or additional components are required.
Q: Is SU S994-XL-A a direct replacement for SU S994-A?
A: No. SU S994-XL-A is not interchangeable with SU S994-A. The XL variant has a different hub bore or axle interface designed for specific truck models. Installing the wrong assembly can cause wheel misalignment, loose fit, or bearing damage. Verify your trucks exact model and axle specification before ordering.
Q: How long does it take to install SU S994-XL-A on an electric lift truck?
A: Installation of SU S994-XL-A is quick because it is pre-assembled. Slide the hub onto the axle and secure with the retaining clip or bolt, which takes 10 to 15 minutes per wheel. No special tools or pressing equipment is needed, unlike wheel-only replacements. A technician can replace all four wheels in approximately one hour.
Q: Do I need to grease or maintain the SU S994-XL-A bearings?
A: No maintenance is required. The sealed ball bearings come pre-greased and factory-sealed. During normal warehouse and light industrial operation, the bearings do not need re-greasing. If a bearing fails or becomes noisy, the entire SU S994-XL-A assembly must be replaced.
Q: What symptoms indicate that a SU S994-XL-A assembly is failing?
A: Watch for grinding or squeaking noises from the wheel hub, increased rolling resistance, excessive heat around the hub after operation, or lateral movement of the wheel on the axle. Spin the wheel by hand with the truck lifted. A healthy wheel spins freely for several seconds. If the wheel feels stiff, makes noise, or wobbles side-to-side, the assembly is failing and must be replaced.
Q: Can the polyurethane tread on SU S994-XL-A be replaced separately?
A: No. The polyurethane tread and steel XL hub are bonded as a single unit. Once the tread is worn or damaged, the entire assembly must be replaced. Attempting to separate the tread from the hub will destroy both components. When tread wear reaches 50 percent or flat spots develop, order a replacement SU S994-XL-A assembly.