Product Description
Replacement Caterpillar CT 971760-A poly load wheel assembly, with precision-sealed bearings, 3.25 inch diameter by 3.00 inch width, polyurethane tread (95A), steel core, for electric pallet truck and electric lift truck applications.
Specifications
Material & Construction
| Wheel Core Material | Steel, with precision-machined finish |
| Tread Hardness | 95A Shore D |
| Bearing Outer Material | Chrome steel (bearing grade) |
Part Numbers
| SKU | CT 971760-A |
| Manufacturer Part Number | CT 971760-A |
| OEM Part Number | CT 971760-A |
Frequently Asked Questions
Q: What does the -A designation mean for the CT 971760-A?
A: The -A suffix on CT 971760-A indicates this is an assembly version that includes the polyurethane wheel bonded to a precision bearing and axle interface. This is a complete load wheel assembly ready for your equipment, as opposed to a bare wheel. The assembly configuration ensures the bearing is properly seated and the wheel is balanced before it reaches you.
Q: What are the exact dimensions of the CT 971760-A?
A: The CT 971760-A wheel measures 3.25 inches in diameter and 3.00 inches in width. Note that the width is 3.00 inches, which is slightly narrower than the standard CT 971760 at 3.25 inches width. This width difference is significant for fitment; confirm your equipment carriage width before ordering. Using a wheel that is too narrow will cause wobble or side-to-side movement.
Q: What bearing material and type does the CT 971760-A use?
A: The CT 971760-A uses precision-sealed ball bearings with a chrome steel (bearing grade) outer race. Chrome steel is corrosion-resistant and maintains rigidity under the dynamic loads of electric pallet jacks. The sealed bearing design prevents dirt and moisture ingress, extending bearing service life in wet dock and outdoor environments.
Q: Why is the precision-machined steel core significant?
A: The precision-machined steel core ensures the wheel bore is concentric and has tight tolerances, which minimizes radial runout and wobble during operation. Poor machining tolerance causes uneven polyurethane wear and premature bearing failure. The machined finish also provides a stable surface for the sealed bearing outer race to seat, reducing axial play and noise.
Q: How does the 95A Shore D hardness compare to other load wheels?
A: The 95A Shore D polyurethane on the CT 971760-A is a mid-range hardness that balances load capacity with traction. Compared to 97A wheels, the 95A compound provides slightly better grip on wet or contaminated concrete, but may show faster tread glazing in continuous dry-floor operation. For electric pallet trucks working across varied floor conditions, the 95A hardness is a practical choice.
Q: What is the expected service life of the CT 971760-A?
A: In typical heavy-duty electric lift truck environments, the CT 971760-A will deliver 2-4 years of service before the polyurethane tread becomes too glazed for safe operation. The sealed ball bearing typically lasts 3-5 years before noise or wobble appears. Lifespan varies based on load weight, floor conditions, and daily runtime hours. Monitor tread grip quarterly and replace when traction becomes unreliable.