Precision Steer Wheel Assembly for Manual Pallet Jacks - Nylon Tread
PU AA-725x2 PMWB-ST
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Compatibility
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Reference Diagrams
Visit our diagram page for part references to popular models
Product Description
Precision steer wheel assembly for manual pallet jacks featuring a nylon tread on a polyurethane hub with dual-sealed deep-groove ball bearings. Designed for direct replacement compatibility with Pallet Mule AA5000 and AA5500 models, delivering high mechanical durability and low rolling resistance for smooth operation and reduced operator fatigue.
Specifications
Material Composition
| Wheel Tread Material | Nylon (outer tread) |
| Hub Material | Polyurethane (inner hub) |
| Hub Construction | Injection-molded polyurethane compliant with ASTM D412 |
| Tread Hardness | Shore D 75 (nylon) |
| Bearing Type | Dual-sealed deep-groove ball bearings |
Part Numbers
| Part Number | PU AA-725x2 PMWB-ST |
| Manufacturer Part Number | AA-7.25x2 PMWB-ST |
| Cross-Reference Part Numbers | AA-7.25x2 PMWB-HD, AA-7.25x2 STEER WHEEL ASSEMBLY NYLON, AA-7.25x2 PMWB (Ultra-Poly) |
| Compatible Models | Pallet Mule AA5000, AA5500 |
Performance
| Wheel Assembly Service Factor | 1.0 (intermittent manual duty) |
| Operational Characteristics | Low rolling resistance, reduced friction, suitable for cold storage environments |
Frequently Asked Questions
Q: What are the dimensions and material specifications for this steer wheel assembly?
A: This steering wheel measures with nylon outer tread bonded to a polyurethane hub. The nylon construction delivers low rolling resistance and reduced friction compared to all-polyurethane wheels, while the polyurethane hub provides structural support.
Q: Which manual pallet jack models are compatible with this assembly?
A: This steer wheel is directly compatible with Pallet Mule AA5000 and AA5500 models. Always verify your equipment model number before ordering to confirm proper fitment and bearing compatibility.
Q: What bearing system does this wheel assembly include?
A: This assembly features dual-sealed deep-groove ball bearings, providing protection from contaminants, moisture, and extended service life in typical warehouse and material handling environments.
Q: Are there equivalent part numbers I should know about?
A: Yes, equivalent models include AA-7.25x2 PMWB-HD, AA-7.25x2 STEER WHEEL ASSEMBLY NYLON, and AA-7.25x2 PMWB (Ultra-Poly). Documentation may reference these interchangeably depending on the distributor or equipment manufacturer.
Q: Why is nylon tread preferred over all-polyurethane wheels?
A: Nylon tread reduces rolling resistance and mechanical load on the pallet jack frame, resulting in easier pushing and reduced operator fatigue. The lower friction also translates to less wear on frame components and smoother directional control.
Q: Is this wheel suitable for refrigerated or cold storage operations?
A: Yes. Nylon maintains flexibility and consistent rolling characteristics at cold temperatures better than polyurethane, which can become rigid. This assembly is well-suited for freezer units, coolers, and other cold storage environments where standard all-poly wheels lose performance.
Q: What maintenance is recommended for this wheel assembly?
A: Periodically inspect the bearing seals for debris or damage and wipe clean with a dry cloth. The sealed bearings are maintenance-free under normal conditions. Check the nylon tread for excessive wear; replace if tread becomes polished or slippery.
Q: Can this wheel assembly be reused or is it a one-time replacement?
A: The wheel assembly can be reused if removed carefully. The polyurethane hub is durable and maintains structural integrity through multiple service cycles. The bearings are sealed and designed for extended life, typically lasting several years under normal manual pallet jack use.
