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National A-23 Wheel Bearing and Race Set - Front Inner
Overview of National A-23 Wheel Bearing and Race Set
The National A-23 wheel bearing and race set is designed specifically for Cadillac Eldorado and Oldsmobile Toronado models. This taper bearing set ensures precise fitment and reliable performance for driveline and axle maintenance.
- Includes taper bearing cone (LM104949E2) and cup (LM1049112)
- Cone bore diameter: 2.0000 inches (50.8 mm)
- Cone length: 2.0380 inches (51.765 mm)
- Cone radius: 0.1400 inches (3.556 mm)
- Cup bore diameter: 3.2500 inches (82.55 mm)
- Cup length: 1.6380 inches (41.605 mm)
- Cup radius: 0.0500 inches (1.27 mm)
- Includes spacer X-2446-6 for proper assembly
Detailed Product Description
The National A-23 wheel bearing and race set is engineered to meet the exact specifications required for Cadillac Eldorado and Oldsmobile Toronado vehicles. Featuring a taper bearing cone with a bore of 2.0000 inches and a length of 2.0380 inches, this set provides a precise fit to maintain optimal wheel alignment and reduce friction. The cup bore measures 3.2500 inches with a length of 1.6380 inches, designed to accommodate the cone securely. The included spacer X-2446-6 ensures proper spacing and assembly during installation. This set is ideal for restoring or maintaining driveline components where accurate bearing dimensions are critical.
Common Applications and Issues Addressed
- Replacement of worn or damaged wheel bearings on Cadillac Eldorado and Oldsmobile Toronado
- Eliminating wheel noise caused by bearing wear
- Resolving wheel play or looseness due to bearing failure
- Preventing premature wear of axle components by restoring proper bearing fit
- Maintaining smooth wheel rotation and driveline efficiency
Installation Notes and Tips
When installing the National A-23 wheel bearing and race set, ensure the bearing cone and cup are clean and free of debris. Use appropriate tools to press the cup into the hub bore without damaging the bearing surfaces. Verify the spacer X-2446-6 is correctly positioned to maintain proper bearing preload. Follow vehicle-specific torque specifications and alignment procedures to ensure optimal performance and longevity.
Quality Assurance and Warranty
National wheel bearing and race sets are manufactured to meet OEM standards for fit and durability. The A-23 part number undergoes rigorous quality control to ensure consistent dimensions and material integrity. While specific warranty details are not provided, National products typically come with a limited warranty against defects in materials and workmanship.
| Brand | National |
| Part Number | A-23 |
| Cone Bore (Inch) | 2.0000 |
| Cone Bore (MM) | 50.8000 |
| Cone Length (Inch) | 2.0380 |
| Cone Length (MM) | 51.7650 |
| Cone Radius (Inch) | 0.1400 |
| Cone Radius (MM) | 3.5560 |
| Cup Bore (Inch) | 3.2500 |
| Cup Bore (MM) | 82.5500 |
| Cup Length (Inch) | 1.6380 |
| Cup Length (MM) | 41.6050 |
| Cup Radius (Inch) | 0.0500 |
| Cup Radius (MM) | 1.2700 |
| Footnote | Includes spacer x-2446-6 |
| Part Description | Taper bearing set |
| Standout (Inch) | 0.0200 |
| Standout (MM) | 0.5080 |
| Taper Bearing Cone | Lm104949e2 |
| Taper Bearing Cup | Lm1049112 |
| Width (Inch) | 0.2038 |
| Width (mm) | 5.1770 |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1978 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1978 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1977 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1977 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1976 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1976 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1975 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1975 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1974 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1974 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1973 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1973 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1972 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1972 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1971 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1971 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1970 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1970 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1969 | Cadillac | Eldorado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1969 | Oldsmobile | Toronado | Front Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
* 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.