Product Description
CT 971757-XL-A Load Wheel Assembly for Caterpillar electric pallet jacks utilizes a 3.94 inch diameter polyurethane wheel with a 97A durometer, engineered for high-durability applications on electric lift trucks. Features a 20 mm bore, sealed ball bearings, and high-strength steel core. Direct replacement for CT 971757-XL, compatible with Raymond 6210 and select CAT equipment.
Specifications
Application
| Intended Use | Load wheels for material handling equipment |
Material
| Wheel Material | Polyurethane, Shore 97A hardness |
Part Numbers
| OEM Part Number | CT 971757-XL-A |
Frequently Asked Questions
Q: What is the difference between CT 971757-XL-A and CT 971757-XL?
A: The CT 971757-XL-A is a complete assembly that includes sealed ball bearings pre-installed on the axle, whereas the CT 971757-XL is the wheel only. If your equipment needs the wheel and bearing together as a unit, the -A assembly is ready to install. Both use identical 3.94 inch (approximately 100 mm) polyurethane wheels with 97A durometer compound and 20 mm bores.
Q: Which equipment models are compatible with the CT 971757-XL-A?
A: The CT 971757-XL-A is listed as compatible with Caterpillar electric pallet jacks, Raymond 6210 models, and select CAT equipment with 20 mm axle bore specifications. However, verify bore diameter and wheel carriage width before ordering, as compatibility requires matching both dimensions. Equipment serial ranges may vary; confirm by measuring your current wheel axle bore.
Q: What bearing type is included with the CT 971757-XL-A assembly?
A: The CT 971757-XL-A includes sealed ball bearings rated for material handling equipment loads. Sealed bearings keep dirt and moisture out, extending bearing life in warehouse and dock environments. The ball bearing design reduces friction and supports smooth wheel rotation even under continuous duty electric lift truck operation.
Q: What core material does the CT 971757-XL-A use and how durable is it?
A: The CT 971757-XL-A features a high-strength steel core that is precision-machined to ensure axle bore accuracy and runout tolerances. High-strength steel resists permanent deformation under the continuous load cycles of electric lift trucks and provides a stable bearing mount surface. The core supports the sealed ball bearings without flex or play that would accelerate bearing wear.
Q: How long do the sealed bearings last on the CT 971757-XL-A?
A: Sealed bearing lifespan is typically 3-5 years in continuous warehouse duty, though heavy loads or contaminated floors may shorten this. The sealed design slows bearing degradation compared to open bearings. When bearings wear, you will notice increased wheel drag, noise, or wobble. At that point, the entire assembly should be replaced rather than attempting to service bearings.
Q: Why is the 97A durometer polyurethane important for this assembly?
A: The 97A Shore durometer polyurethane tread provides excellent wear resistance and load capacity for electric lift truck applications. This hardness resists fast tread degradation from abrasion and maintains grip on clean, dry concrete floors. The harder compound also reduces rolling resistance compared to softer wheels, which is beneficial for battery-powered equipment efficiency over long shifts.