Product Description
SU 9139-XL-A Load Wheel Assembly for electric pallet trucks features polyurethane tread over machined steel hub, precision sealed ball bearing, and a straight through 20 mm bore. Suited for Superior brand electric lift truck applications.
Specifications
Material & Construction
| Tread Material | Polyurethane, molded over steel hub |
| Hub Material | Machined steel |
| Finish | Machined surface, uncoated |
Part Numbers
| OEM Part Number | SU 9139-XL-A |
Frequently Asked Questions
Q: What is the bore size on the SU 9139-XL-A?
A: The SU 9139-XL-A features a straight-through 20 mm bore diameter machined into the steel hub. This bore size is standard for many electric pallet jack platforms. Always verify your jack spindle or axle diameter before ordering to ensure proper fitment.
Q: What is the difference between the SU 9139-XL-A and SU 9139-EZ?
A: The SU 9139-XL-A uses standard industrial-grade polyurethane tread over a machined steel hub with precision sealed ball bearings. The SU 9139-EZ features a High Traction polyurethane compound optimized for wet floors and cold storage. If you operate primarily in standard warehouse conditions, the XL-A is suitable. For cold storage or slippery surfaces, choose the EZ variant.
Q: Is the SU 9139-XL-A bearing user-replaceable?
A: No. The SU 9139-XL-A comes with pre-pressed precision sealed ball bearings that are not field-serviceable. When bearing failure occurs, you must replace the entire wheel assembly. Do not attempt to press out or repack the bearings, as this voids the load rating and warranty.
Q: Can I use the SU 9139-XL-A in wet conditions?
A: The SU 9139-XL-A can handle occasional exposure to moisture in standard warehouse conditions. However, for extended wet floor or cold storage operation, the SU 9139-EZ with its High Traction polyurethane is the recommended choice for optimal traction and material performance.
Q: What hub material does the SU 9139-XL-A use?
A: The SU 9139-XL-A features a solid machined steel hub with an uncoated, machined surface finish. This construction provides rigidity and load-bearing strength. The steel hub is not galvanized or stainless, so it will show surface oxidation over time in humid environments; this does not affect performance.