Product Description
Industrial grade replacement polyurethane wheel, SKU 4879331, engineered for long service life on electric lift trucks and pallet jacks. Durometer hardness rated at 95A, precision sealed bearings, compatible with 20 mm hub shafts. Core manufactured from machined steel for high load performance.
Specifications
Material & Construction
| Wheel Core Material | Machined steel core |
Part Numbers
| Manufacturer Part Number | 4879331 |
| Equivalent Part Number | KA74879331-XL |
Frequently Asked Questions
Q: What are the key specifications of the 4879331 polyurethane wheel?
A: The 4879331 is an industrial grade polyurethane wheel with 95A durometer hardness, precision sealed bearings, and a machined steel core. It is engineered to fit 20 mm hub shafts and is compatible with electric lift trucks and manual pallet jacks requiring robust load performance.
Q: What is the difference between 95A and 95D durometer ratings?
A: The 95A durometer on the 4879331 indicates a softer polyurethane compound than 95D wheels, providing better grip and shock absorption. The 95A rating is well suited for standard concrete floors and general material handling. 95D wheels offer slightly more wear resistance but less traction on smooth surfaces.
Q: Is the 4879331 compatible with manual pallet jacks and electric lift trucks?
A: Yes, the 4879331 is designed for both applications. The 20 mm hub shaft specification allows fitment on many common manual pallet jack and electric lift truck models from manufacturers including Crown, Toyota, Raymond, Yale, Hyster, and Jungheinrich. Confirm your equipment hub diameter before ordering.
Q: What is the equivalent part number for the 4879331?
A: The 4879331 cross-references to equivalent part number KA74879331-XL. This designation may appear in some OEM and aftermarket catalogs. Both SKUs reference the same wheel specification with machined steel core and precision sealed bearings.
Q: How does the machined steel core affect wheel performance and durability?
A: The machined steel core provides high load-bearing capacity and extends wheel service life in heavy-duty applications. Steel cores resist deformation under sustained loads and provide better stability on uneven surfaces compared to composite or lighter cores. This construction is ideal for warehouse and industrial environments.
Q: What maintenance is required for the precision sealed bearings on the 4879331?
A: Precision sealed bearings require minimal maintenance. Inspect periodically for bearing play, unusual noise, or seal leakage. Clean wheels regularly to prevent debris buildup. Replace bearings if play develops or seals fail. Sealed bearings prevent contaminant entry and extend wheel operational life.