Product Description
AA-3X4 Polyurethane load wheel and bearing assembly for manual pallet jack applications. Steel hub, 3 inch diameter, 3.75 inch width, 95A durometer polyurethane tread, 20 mm sealed precision ball bearings, compatible with Pallet Mule AA-5500 series and other standard manual pallet trucks. Supersedes and equivalent to PU AA-3X4 PMWB, PU AA-3X4 SMWB, and PU AA-3X4 PMWB-KIT. Designed for smooth and durable operation in industrial environments.
Specifications
Part Numbers
| Manufacturer Part Number | AA-3X4 |
| OEM Part Number | AA-3X4 |
| Cross-Reference Part Numbers | PU AA-3X4 PMWB, PU AA-3X4 SMWB, PU AA-3X4 PMWB-KIT |
Frequently Asked Questions
Q: What are the specifications for the AA-3X4 load wheel?
A: The AA-3X4 features a 3 inch outer diameter with a 3.75 inch tread width. It includes Ultra-Poly tread at 70D hardness on a steel core with 20 mm sealed precision ball bearings.
Q: Which manual pallet jack models are compatible with the AA-3X4?
A: The AA-3X4 is compatible with Pallet Mule AA-5500 series and other standard manual pallet trucks. It is designed for general warehouse and dock use with jacks rated for typical industrial loads.
Q: What cross-reference part numbers exist for the AA-3X4?
A: Cross-reference and equivalent part numbers include PU AA-3X4 PMWB, PU AA-3X4 SMWB, and PU AA-3X4 PMWB-KIT. Use these numbers to verify compatibility with your specific equipment.
Q: What is the polyurethane grade and hardness of this wheel?
A: The AA-3X4 uses Ultra-Poly tread with 95A durometer hardness. This grade provides smooth rolling and durability across concrete and similar flooring in standard industrial environments.
Q: Is the bearing assembly sealed?
A: Yes. The AA-3X4 includes 20 mm sealed precision ball bearings. Sealed construction minimizes exposure to dust and moisture, extending component life in active warehouse operations.
Q: What is the hub material composition?
A: The hub is steel core construction with machining for precision fit. This design ensures consistent load distribution and reliable long-term performance.