Product Description
Pallet Mule OEM steel load/exit roller assembly, part number PU AA-2X4 SW, specified for manual pallet jack left and right fork configuration. Fabricated from high strength carbon steel, dimensions 2.00 inches diameter x 4.00 inches width, bearing bore 0.625 inches (5/8 nominal), direct replacement for Pallet Mule manual pallet jack models. Supplied with sealed precision ball bearing. Complies with ASTM A36 standards for material strength; industrial corrosion-resistant finish.
Compatibility: Fits pallet jacks made by Pallet Mule, model 6600. SKU: PU AA-2X4 SW
Specifications
Material
| Steel Grade | Carbon steel, minimum ASTM A36 compliance |
Part Numbers
| Manufacturer Part Number | PU AA-2X4 SW |
| OEM Part Number | PU AA-2X4 SW |
Frequently Asked Questions
Q: What manual pallet jack models does the PU AA-2X4 SW steel roller fit?
A: The PU AA-2X4 SW is an OEM steel load/exit roller assembly engineered for Pallet Mule manual pallet jack models with left and right fork configurations. It is a direct replacement for standard manual pallet jack equipment. Verify your equipment model and roller dimensions before ordering.
Q: What are the specifications for the PU AA-2X4 SW steel roller?
A: Diameter is 2.00 inches with 4.00 inches width. Bearing bore is 0.625 inches (5/8 inch nominal). Material is carbon steel meeting minimum ASTM A36 compliance for material strength. The assembly includes sealed precision ball bearings. Industrial corrosion-resistant finish is applied.
Q: Why is ASTM A36 compliance important for the PU AA-2X4 SW steel roller?
A: ASTM A36 is a structural carbon steel specification that ensures minimum tensile strength and yield strength required for load-bearing applications. For pallet jacks, ASTM A36 compliance guarantees the roller will not deform or fail under typical working loads. This standard provides consistency and reliability across manufacturing batches.
Q: What is the bearing bore size and why is it critical?
A: The bearing bore is 0.625 inches (5/8 inch nominal). This bore size must match your equipment axle diameter exactly. Incorrect bore size results in either a loose roller that spins wildly or binding that prevents rotation. Always verify your axle diameter before ordering.
Q: How long does a steel roller assembly like the PU AA-2X4 SW typically last?
A: Carbon steel rollers typically last 4 to 6 years or longer under normal warehouse use, especially with sealed bearings preventing contamination. The sealed precision ball bearings significantly extend service life. Replace the assembly if you observe corrosion pitting on the steel surface, if rotation becomes rough or noisy, or if the roller shows visible bend or deformation.
Q: What makes the corrosion-resistant finish important for this steel roller?
A: The corrosion-resistant finish protects the carbon steel surface from warehouse humidity, wet floors, and chemical residues that can cause rust and pitting. This finish extends the usable life of the roller and maintains smooth operation. The finish does not require additional maintenance but will eventually wear in high-traffic areas; monitor for exposed steel showing rust.