Crown Durarun 95A Polyurethane Load Wheel Assembly

Frequently Asked Questions

Q: What is the CR 81645-040 and what equipment does it fit?
A: The CR 81645-040 is a direct-replacement load wheel assembly manufactured by Crown for electric pallet jacks and electric lift trucks. The Durarun 95A polyurethane tread combined with a carbon steel core provides durability and reliable performance in warehouse and distribution environments.

Q: What does the 95A Shore A durometer rating mean for this load wheel?
A: A 95A Shore A rating indicates a hard, durable polyurethane compound optimized for load handling and abrasion resistance. This hardness level resists cutting and tearing under high-load scenarios typical of warehouse pallet jacks while maintaining adequate grip on concrete and smooth warehouse floors without excessive rolling resistance.

Q: How does the carbon steel SAE 1045 core perform compared to other hub materials?
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 part numbers are cross-compatible with the CR 81645-040?
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 to ensure proper fitment.

Q: What are the signs that a 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. Damaged wheels reduce load capacity and can cause frame damage. In high-cycle environments, wheel replacement every 18 to 24 months is typical maintenance.

Q: How should the CR 81645-040 wheel be stored or maintained?
A: Store wheels in a clean, dry environment away from direct sunlight and extreme temperatures. Periodically inspect the polyurethane tread for cracks, flat spots, or uneven wear patterns. Keep wheel bearings clean and lubricated according to your equipment manufacturer recommendations. Proper storage and maintenance extend wheel service life.