Product Description
Caterpillar load wheel assembly CT 1201778-A engineered for electric lift trucks; features 3.5 inch diameter, high-impact polyurethane tread, 20 mm bore, sealed ball bearing, and compatibility with OEM part 1201778 and SK02191115JE cross-references.
Specifications
Material & Construction
| Wheel Material | High-impact polyurethane |
| Core Material | Precision-machined steel |
| Finish | Polyurethane bonded to steel core |
| Hardness | Shore A 92 |
Part Numbers & Compatibility
| OEM Part Number | CT 1201778-A |
| Cross-Reference Part Numbers | 1201778, SK02191115JE |
Frequently Asked Questions
Q: What are the specifications of the CT 1201778-A load wheel assembly?
A: The CT 1201778-A is a complete load wheel assembly with a 3.5-inch diameter, 20 mm bore, high-impact polyurethane tread, precision-machined steel core, sealed ball bearing, and Shore A 92 hardness. This configuration is engineered for Caterpillar electric lift truck applications.
Q: What does a Shore A 92 hardness rating mean for this wheel?
A: Shore A 92 indicates a moderately firm polyurethane compound that balances load capacity and floor grip. This hardness resists permanent deformation under heavy loads while providing adequate traction. It is suitable for general warehouse and material handling duty cycles.
Q: What OEM part numbers cross-reference to the CT 1201778-A?
A: The CT 1201778-A cross-references to Caterpillar OEM part number 1201778 and SK02191115JE. These alternate part numbers identify equivalent or superseding wheels. Always verify your equipment documentation lists the correct cross-reference before ordering.
Q: Is the CT 1201778-A compatible with other lift truck brands?
A: The CT 1201778-A is engineered for Caterpillar electric lift trucks. While the 20 mm bore and 3.5-inch diameter may be compatible with other brands, always confirm your equipment specification matches before ordering. Using mismatched wheels can cause alignment issues and safety hazards.
Q: Why is this assembly steel-cored instead of nylon-cored?
A: The precision-machined steel core provides superior rigidity and load distribution compared to nylon cores. Steel cores resist deflection under sustained heavy loads and offer better radial strength, making them ideal for intensive duty cycles on electric lift trucks.
Q: What maintenance does the sealed bearing require?
A: The sealed ball bearing in the CT 1201778-A requires no maintenance or lubrication during operation. The seal excludes contaminants and retains internal grease. Replace the assembly when bearing noise or excessive lateral play indicates wear.