Product Description
Toyota OEM Polyurethane Load Wheel, SKU 00591-31861-81, for electric lift truck applications. Features 5.00 inch outside diameter, 2.88 inch tread width, 2.047 inch bore with sealed bearing. 95A Shore hardness; constructed from 305 compound polyurethane. Supersedes 00591-31861-71; equivalent to Crown 310164, 4826270, and 4826279.
Specifications
Material & Construction
| Shore A Hardness | 95A |
| Tensile Strength | 3–53 MPa |
| Elongation | 22%–76% |
| Tear Strength | 10–195 kN/m |
| Resilience | 20%–50% |
| Abrasion Loss | 0.02–0.045 g/1.6 km |
Part Numbers
| OEM Part Number | 00591-31861-81 |
| Manufacturer Part Number | 00591-31861-81 |
Frequently Asked Questions
Q: What are the complete specifications for 00591-31861-81?
A: Part 00591-31861-81 is a Toyota OEM polyurethane load wheel with 5.00 inch outside diameter, 2.88 inch tread width, and 2.047 inch bore. It features sealed bearings, 95A Shore hardness, and is constructed from 305 compound polyurethane bonded to an iron core.
Q: Which electric lift truck brands are compatible with 00591-31861-81?
A: This wheel is designed for Toyota electric lift truck applications. It is equivalent to Crown parts 310164, 4826270, and 4826279. Always verify your equipment model and mounting dimensions before ordering.
Q: What part did 00591-31861-81 supersede?
A: Part 00591-31861-81 supersedes the earlier version 00591-31861-71. If your equipment currently uses 00591-31861-71, you can upgrade to the newer 00591-31861-81, which uses improved 305 compound polyurethane for extended durability.
Q: Why is the 305 compound polyurethane specification important?
A: 305 compound polyurethane is a high-bond formulation that provides superior adhesion between the tire and iron core. This prevents tread separation and extends wheel life under heavy electric lift truck loads. The 95A Shore hardness rating delivers excellent load resistance.
Q: Are there equivalent or cross-reference part numbers for 00591-31861-81?
A: Yes. This wheel is equivalent to Crown parts 310164, 4826270, and 4826279. However, for Toyota equipment, always order using the exact OEM part number 00591-31861-81 to ensure correct specifications and fitment.
Q: How does the sealed bearing design benefit electric lift truck operations?
A: Sealed bearings eliminate maintenance requirements for bearing lubrication and protect against contamination from warehouse dust and moisture. This design reduces downtime and extends overall wheel assembly life in demanding electric lift truck applications.