Product Description
Yale YL 550091328 tandem load roller wheel assembly engineered for the YA55 manual pallet jack. Features dual polyurethane rollers with machined steel core, precision-sealed ball bearings, and robust compatibility. Designed for reliable, long-lasting performance in industrial pallet transport applications.
Specifications
Material & Construction
| Roller Material | Polyurethane tread |
| Core Material | Machined steel |
| Hardness Grade | Shore A 95 (polyurethane) |
Mechanical Specifications
| Bearing Type | Precision-sealed ball bearings |
| Application | Yale YA55 series manual pallet jack |
Part Numbers & Compatibility
| Part Number | YL 550091328 |
| Manufacturer Reference | YL 550091328 |
| Compatible Equipment Models | Yale YA55 manual pallet jack |
Frequently Asked Questions
Q: What is the 550091328 and where does it fit on a Yale YA55?
A: The 550091328 is a tandem load roller wheel assembly for Yale YA55 manual pallet jacks. It features dual polyurethane rollers mounted on a machined steel core and is designed to fit the load wheel position under the pallet carriage.
Q: What are the material specifications for the 550091328?
A: Rollers are polyurethane tread bonded to a machined steel core. The polyurethane hardness is Shore A 95, engineered for load distribution and floor grip. Precision-sealed ball bearings protect against dust and moisture in industrial environments.
Q: Will the 550091328 work on manual pallet jacks from other manufacturers?
A: The 550091328 is manufactured for Yale YA55 series compatibility. While some aftermarket wheels may physically fit similar axles, factory-spec fitment ensures precise performance, load capacity, and bearing quality. Verify axle diameter and bearing bore match your equipment before ordering.
Q: What causes tandem load roller assemblies to fail?
A: Failures typically result from polyurethane wear (flat spots, glazing), bearing degradation (noise, grinding), or axle corrosion. Overloading beyond rated capacity accelerates wear. Wet floors and cold storage environments increase polyurethane hardening and cracking risk.
Q: How long does a tandem load wheel assembly last in typical warehouse use?
A: Expected lifespan is 18-36 months depending on usage volume, floor conditions, and load consistency. High-temperature or cold storage environments may reduce life by 25-50 percent. Replace when wheels no longer roll smoothly, flatten noticeably, or show visible cracking.
Q: Does the 550091328 come pre-assembled and ready to use?
A: Yes, the 550091328 is supplied as a complete tandem assembly with dual rollers, sealed bearings, and steel core pre-installed. It is a direct replacement component for the YA55 load wheel position.
