Product Description
Crown OEM CR 81645-040 is a Durarun 95A polyurethane load wheel assembly engineered for electric pallet jack and electric lift truck applications. Wheel features high-durability 95 Shore A polyurethane tread for optimal abrasion resistance and load handling. OEM fitment ensures compatibility with select Crown electric lift trucks.
Specifications
Material
| Tread Material | 95A durometer polyurethane |
| Core Material | Carbon steel, SAE 1045 |
Part Numbers
| OEM Part Number | CR 81645-040 |
| Vendor Part Number | CR 81645-040 |
Frequently Asked Questions
Q: What is the material composition of the CR 81645-040 load wheel?
A: The CR 81645-040 features a 95A durometer polyurethane tread bonded to a carbon steel SAE 1045 core. SAE 1045 carbon steel provides high strength and impact resistance essential for heavy-duty electric pallet jack and lift truck applications. This core material handles repeated loading without permanent deformation.
Q: Which Crown electric lift truck models are compatible with the CR 81645-040?
A: The CR 81645-040 is engineered for Crown electric pallet jack and electric lift truck applications. Verify your specific Crown model and serial range for fitment confirmation. Cross-compatible parts include CR 81645-030, CR 81645-035, and CR 81645-A.
Q: What does a 95A Shore A polyurethane tread provide for load handling performance?
A: A 95A Shore A rating indicates a hard, durable polyurethane compound optimized for load handling and abrasion resistance. The 95A tread resists cutting and tearing under high-load scenarios typical of warehouse pallet jacks. This hardness level balances grip without excessive rolling resistance on concrete and smooth warehouse floors.
Q: What part numbers does the CR 81645-040 replace or cross-reference?
A: The CR 81645-040 is equivalent to and interchangeable with CR 81645-030, CR 81645-035, and CR 81645-A. Always confirm the bore diameter, hub width, and wheel diameter of your current wheel before ordering a replacement part number.
Q: How does the carbon steel SAE 1045 core differ from aluminum or polymer hubs?
A: SAE 1045 carbon steel cores provide superior strength-to-weight ratio compared to aluminum hubs and greater impact resistance than polymer hubs. Carbon steel cores do not flex under heavy sustained loads, ensuring consistent wheel geometry and reducing bearing stress. This material is standard for high-cycle industrial lift truck wheels.
Q: What conditions indicate that the CR 81645-040 wheel needs replacement?
A: Replace the wheel if tread is visibly worn flat, if the wheel develops a flat spot or wobbles during rotation, if bearings produce grinding noise, or if the tread is cracked or chunks are missing. In high-cycle environments, wheel replacement every 18 to 24 months is typical. Damaged wheels reduce load capacity and damage lift truck frames.