Product Description
The YL 504449731-XL-A load wheel assembly is a direct replacement for Yale electric walkie pallet jacks, engineered for reliable performance in high-cycle warehouse environments. This assembly features a 3.25 inch diameter by 4.5 inch width polyurethane wheel with 95A durometer hardness mounted on a durable cast iron core. The sealed 6205-2RS bearing (25mm bore) and grease zerk fitting ensure extended service life and simplified maintenance. Compatible with standard Yale MPB and MPE pallet truck axle configurations.
Specifications
Material & Construction
| Wheel Core Material | Cast iron |
| Tread Material Specification | Polyurethane, 95A hardness |
| Wheel Diameter | 3.25 inches |
| Wheel Width | 4.5 inches |
Bearing & Lubrication
| Bearing Type | Sealed 6205-2RS bearing |
| Bearing Bore | 25mm |
| Grease Zerk Fitting | Yes |
Part Number & Compatibility
| Part Number | YL 504449731-A |
| Compatible Equipment | Yale MPB and MPE pallet truck axle configurations |
| Service Life | Reliable for high-cycle warehouse environments |
Frequently Asked Questions
Q: What are the specifications of the YL 504449731-A load wheel?
A: This load wheel features a 3.25 inch diameter and 4.5 inch width with polyurethane tread at 95A hardness. The core is cast iron, and it includes a sealed 6205-2RS bearing with 25mm bore and grease zerk fitting for maintenance.
Q: Is the 504449731-A compatible with Yale MPB and MPE pallet trucks?
A: Yes. This assembly is designed for standard Yale MPB and MPE pallet truck axle configurations. Verify your equipment uses the standard axle setup before ordering.
Q: How does the 95A polyurethane tread perform in warehouse conditions?
A: The 95A durometer provides good floor grip and wear resistance for standard warehouse environments. Tread will gradually wear under heavy use and should be inspected quarterly for wear patterns and flatspotting.
Q: What is the expected service life of this load wheel?
A: Service life depends on floor conditions, load weight, and usage frequency. The sealed 6205-2RS bearing extends assembly longevity significantly. Regular lubrication through the grease zerk fitting and monitoring for noise or play will maximize performance. Most assemblies serve reliably for 2 to 4 years in typical warehouse duty.
Q: When should the 504449731-A wheel be replaced?
A: Replace the assembly if you observe excessive tread wear, flat spots, bearing play, squeaking sounds, or difficulty steering. If the wheel core shows cracks or the bearing feels loose, replacement is necessary.
Q: How should I store this wheel assembly?
A: Store in a dry environment protected from direct sunlight and temperature extremes. Maintain stored assemblies on a level surface. Periodically check that seals remain intact and protective grease is present on the zerk fitting.