Product Description
Technical specification for SU 9144-XL polyurethane load wheel, engineered for Superior electric pallet jacks. Features include 3.25-inch outer diameter, 4.5-inch width, 1.938-inch bore, premium polyurethane construction, steel hub, XL3™ bonding technology, and compatibility with mid-market duty cycles. Cross-reference part numbers not indicated in available sources.
Specifications: 3.250 inch diameter x 4.500 inch width (3.250" x 4.500" | 3.25 x 4.5 wheel | 3-1/4 x 4-1/2 | 82.55mm x 114.30mm)
Specifications
Compatibility
| Fitment | OL2295, PL123, 5386 (specific to certain lift truck models, consult OEM for full compatibility) |
Material
| Bonding Technology | XL3™ proprietary bonding for maximum interface strength, steel core, no bond separation under operating conditions |
Part Numbers
| SKU | SU S9144 XL |
| Cross-Reference Part Numbers | Superior L509144, 3.25x4.5 Polyurethane Load Wheel Superior XL |
| OEM Part Number | Superior S9144XL, L509144 |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 4.5 |
| Bore Depth | 0.512 |
| Hub Width | 4.5 |
| Bore Outside Diameter | 2.1649 |
Frequently Asked Questions
Q: What are the core specifications for the SU S9144 XL load wheel?
A: The SU S9144 XL is a 3.25-inch outer diameter by 4.5-inch width polyurethane load wheel with a 1.938-inch bore and 0.512-inch bore depth. The wheel features XL3 bonding technology, a steel hub, and Cushothane XL polyurethane tread material rated for 97A durometer. Metric equivalent is 82.55mm diameter by 114.30mm width. The wheel is engineered for mid-market duty cycle equipment and manual lift trucks.
Q: What equipment models and serial ranges is the SU S9144 XL compatible with?
A: The SU S9144 XL fits equipment with model or fitment codes OL2295, PL123, and 5386 within specific serial ranges. Always verify your equipment model number and current wheel bore diameter before ordering. Cross-reference documentation or contact your equipment supplier to confirm serial number compatibility, as fitment rules vary by manufacturer and production year.
Q: How does the XL3 bonding technology affect wheel life and performance?
A: XL3 bonding technology guarantees no bond separation under normal duty cycles. This proprietary adhesive system bonds the polyurethane tread to the steel hub and prevents delamination that occurs with inferior bonding methods. XL wheels typically deliver 2 to 3 times longer service life compared to standard bonded wheels when used in mid-market duty environments.
Q: What is the difference between SU S9144 XL and SU S9144-A assembly configurations?
A: SU S9144 XL is a load wheel only with XL-grade polyurethane and XL3 bonding. SU S9144-A is a complete wheel assembly that includes the wheel, hub, bearings, and fasteners as a ready-to-install unit. Choose the wheel-only version if you have existing hubs and bearings; choose the assembly version if you need a complete replacement or installation on new equipment.
Q: How do I diagnose if the SU S9144 XL wheel is failing?
A: Symptoms of wheel failure include flat spots or uneven wear, visible tread cracking, difficulty steering, or audible squeaking or grinding sounds. If the hub has shifted relative to the polyurethane tread, bond separation has occurred. Check the wheel by rotating it by hand and listening for noise, then inspect the tread surface and hub interface for cracks, deformation, or separation. Replace the wheel if damage is present.
Q: What maintenance extends the life of the SU S9144 XL wheel?
A: Clean the wheel tread regularly to remove debris and buildup. Inspect for wear and damage every 500 operating hours. Ensure the equipment is not overloaded beyond its rated capacity, as overloading accelerates tread wear and causes premature hub failure. Rotate equipment load paths when possible to distribute wear evenly. Store equipment indoors or covered to minimize UV and ozone exposure to the polyurethane.