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National 14138A Wheel Bearing - Front Inner or Rear
Overview of National 14138A Wheel Bearing Cone
The National 14138A is a precision-engineered taper bearing cone designed for driveline and axle applications. Specifically compatible with Aston Martin Zagato and Ford Escort models, this wheel bearing cone ensures reliable performance and proper fitment.
- Cone bore diameter: 1.3750 inches (34.9250 mm)
- Cone length: 0.7710 inches (19.5830 mm)
- Cone radius: 0.1400 inches (3.5560 mm)
- Part type: Taper bearing cone
- Part number: 14138A
Detailed Product Description
The National 14138A wheel bearing cone is manufactured to meet exacting specifications for driveline and axle systems. With a cone bore measuring 1.3750 inches (34.9250 mm), this component fits precisely within the wheel bearing assembly. The cone length of 0.7710 inches (19.5830 mm) and cone radius of 0.1400 inches (3.5560 mm) contribute to its proper seating and load distribution. This taper bearing cone is engineered to maintain optimal alignment and reduce friction in the wheel hub, supporting smooth rotation and vehicle stability.
Compatible Vehicles and Applications
This wheel bearing cone is compatible with select Aston Martin and Ford models, including the Aston Martin Zagato and Ford Escort. It is designed for use in driveline and axle assemblies where precise bearing fitment is critical for vehicle safety and performance.
- Compatible with Aston Martin Zagato wheel bearing assemblies
- Compatible with Ford Escort driveline and axle systems
- Suitable for replacement in wheel bearing maintenance and repair
Common Issues Addressed by National 14138A
- Eliminates wheel bearing noise caused by worn or damaged cones
- Prevents excessive wheel play and vibration
- Restores proper bearing preload and alignment
- Reduces premature bearing wear and potential axle damage
- Improves overall driveline smoothness and vehicle handling
Installation Notes and Tips
When installing the National 14138A wheel bearing cone, ensure the bearing surfaces are clean and free of debris. Proper lubrication should be applied to the cone and bearing assembly to prevent premature wear. Verify the cone bore and length dimensions match the vehicle specifications for the Aston Martin Zagato or Ford Escort. Use appropriate tools to seat the cone without causing damage to the bearing surfaces.
Quality Assurance and Warranty
National manufactures the 14138A wheel bearing cone to meet industry standards for durability and precision. While specific warranty details are not provided, National products typically adhere to strict quality control processes to ensure reliable performance in automotive driveline applications.
| Brand | National |
| Part Number | 14138A |
| Cone Bore (Inch) | 1.3750 |
| Cone Bore (MM) | 34.9250 |
| Cone Length (Inch) | 0.7710 |
| Cone Length (MM) | 19.5830 |
| Cone Radius (Inch) | 0.1400 |
| Cone Radius (MM) | 3.5560 |
| Part Description | Taper bearing cone |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1988 | Aston Martin | Zagato | Front Inner | |
| 1987 | Aston Martin | Zagato | Front Inner | |
| 1961 | Ford | Escort | Rear | with Ford Europe Axle |
| 1960 | Ford | Escort | Rear | with Ford Europe Axle |
| 1959 | Ford | Escort | Rear | with Ford Europe Axle |
| 1958 | Ford | Escort | Rear | with Ford Europe Axle |
| 1957 | Ford | Escort | Rear | with Ford Europe Axle |
| 1956 | Ford | Escort | Rear | with Ford Europe Axle |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.