Product Description
Crown CR 77084-040-A polyurethane load wheel assembly engineered for material handling equipment. Features 95A durometer Durarun compound in 5 inch outer diameter configuration with 4.12 inch tread contact width and 2.44 inch bearing bore. Integrated shoulder bearing design provides complete replacement assembly for Crown pallet jack and electric lift truck load wheel applications. Cross-references to CR077084-040, 77084040, and related Crown OEM specifications.
Specifications
Material & Construction
| Wheel Material | Polyurethane compound |
| Durometer Hardness | 95A Shore A hardness rating ( specification) |
Part Numbers & Compatibility
| OEM Part Number | CR 77084-040-A |
| Cross-Reference Part Numbers | CR077084-040, CR77084040, 77084040, CR077084, 077084 |
Frequently Asked Questions
Q: What are the specifications of the CR 77084-040-A assembly?
A: The CR 77084-040-A features a 5 inch outer diameter, 4.12 inch tread contact width, and 2.44 inch bearing bore. It uses 95A durometer Durarun polyurethane compound and includes integrated shoulder bearing assembly for complete load wheel replacement on Crown pallet jacks and electric lift trucks. These dimensions and bearing configuration distinguish it from wheel-only variants.
Q: Is the CR 77084-040-A compatible with Crown PE 4000 equipment?
A: The CR 77084-040-A is engineered for Crown electric pallet truck and lift truck load wheel applications. Cross-reference your equipment nameplate to confirm compatibility with PE 4000 or similar Crown models. The integrated bearing design makes this a complete replacement assembly, not just a wheel, so verify that your equipment uses a shouldered bearing configuration.
Q: What polyurethane compound is used and what hardness rating does it have?
A: The CR 77084-040-A uses Durarun 95A polyurethane, which is rated at 95A Shore A hardness. This compound is designed for standard warehouse and material handling environments with typical concrete or composite flooring. It does not have the extended temperature range or high-traction formulation needed for cold storage or wet floor applications.
Q: What cross-reference part numbers can I use to verify this assembly?
A: The CR 77084-040-A is equivalent to CR077084-040, CR77084040, 77084040, CR077084, and 077084. If you are replacing an existing assembly and see any of these numbers on your equipment, the CR 77084-040-A is the direct replacement. Always verify the bearing configuration matches before ordering.
Q: What is the expected lifespan of the shoulder bearings in this assembly?
A: The double-row shoulder bearing design in the CR 77084-040-A is engineered for extended service life under continuous lift truck operation. Bearing lifespan depends on load, floor conditions, and maintenance practices. Regular inspection for noise, resistance, or play in the wheel rotation indicates bearing wear. Replace the assembly when bearing noise becomes audible or wheel spin becomes sluggish.