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National A-53 Wheel Bearing and Race Set - Rear Inner
| Brand | National A-53 |
|---|---|
| Position | Rear Inner |
| Cone Bore (Inch) | 2.2500 |
| Cone Bore (MM) | 57.1500 |
| Cone Length (Inch) | 0.9540 |
| Cone Length (MM) | 24.2320 |
| Cone Radius (Inch) | 0.0200 |
| Cone Radius (MM) | 0.5080 |
| Cup Bore (Inch) | 3.8125 |
| Cup Bore (MM) | 96.8380 |
| Cup Length (Inch) | 0.6250 |
| Cup Length (MM) | 15.8750 |
| Cup Radius (Inch) | 0.0300 |
| Cup Radius (MM) | 0.7620 |
| Footnote | Components Not Available Seperately |
| Part Description | Taper Bearing Set |
| Taper Bearing Cone | NP114036 |
| Taper Bearing Cup | NP064306 |
| Width (Inch) | 0.8640 |
| Width (mm) | 21.9460 |
| Fits | Ford · 55 vehicles |
Premium-grade steel. Built for durable wheel bearing performance.
Crowned raceways. Promote even load distribution for smoother operation.
Taper bearing set. A complete wheel bearing and race set in one package.
Cross-references Schaeffler NP064306, F81W-1243AA and F81Z-1243AA for the same application. See all 3.
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Not what you need? See all Wheel Bearing and Race Set options
National A-53 Wheel Bearing and Race Set
National A-53 is a taper bearing set built with premium-grade steel and crowned raceways and rollers for even load distribution. It is a direct-fit rear inner wheel bearing and race set for select Ford Super Duty, Ford F-250, Ford F-350, and Ford Excursion applications.
Key Features
- Part number: A-53
- Taper bearing cone: NP114036
- Taper bearing cup: NP064306
- Cone bore: 2.2500 in. / 57.1500 mm
- Cup bore: 3.8125 in. / 96.8380 mm
- Overall width: 0.8640 in. / 21.9460 mm
- Premium-grade steel construction
- Crowned raceways and rollers for even load distribution
- Components not available separately
Detailed Description
National A-53 is a wheel bearing and race set engineered as a taper bearing assembly for rear inner service locations. The cone and cup dimensions are matched for proper seating, and the crowned roller and raceway profile helps distribute load across the bearing surface. This makes the A-53 a practical replacement for rear axle service on 1999-2012 Ford F-250 Super Duty, 1999-2012 Ford F-350 Super Duty, 2000-2009 Ford F-250, 1999-2009 Ford F-350, and 2000-2005 Ford Excursion models. This part cross-references Schaeffler NP064306 for the same application.
What It Helps Address
- Rear wheel bearing noise from worn rollers or race surfaces
- Excessive wheel end play caused by bearing wear
- Rough rotation at the rear inner hub area
- Service issues on Ford F-250 Super Duty and Ford F-350 Super Duty rear axles
- Replacement needs where the cone and cup must be serviced together
Installation Notes and Tips
Verify rear inner fitment by year, model, and axle configuration before installation. Inspect the hub, spindle, and sealing surfaces for wear or scoring before pressing in the new bearing and race set. Clean all mating surfaces thoroughly and follow the vehicle service manual for bearing preload and torque procedures. The A-53 is listed as a taper bearing set with cone and cup components matched as a unit.
Quality Assurance
National manufactures this bearing set with premium-grade steel and crowned raceways and rollers to support consistent load distribution in service. Part number A-53 is built to the stated dimensional specifications for the listed Ford rear inner applications.
This part fits 55 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2012 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2012 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2011 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2011 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2010 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2010 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2009 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2009 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2009 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2009 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2008 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2008 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2008 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2008 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2007 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2007 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2007 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2007 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2006 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2006 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2006 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2006 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2005 | Ford | Excursion | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2005 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2005 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2005 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2005 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2004 | Ford | Excursion | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2004 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2004 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2004 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2004 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2003 | Ford | Excursion | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2003 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2003 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2003 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2003 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2002 | Ford | Excursion | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2002 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2002 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2002 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2002 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2001 | Ford | Excursion | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2001 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2001 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2001 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2001 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2000 | Ford | Excursion | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2000 | Ford | F-250 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2000 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 2000 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 2000 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 1999 | Ford | F-250 Super Duty | Rear Inner | Tapered wheel bearing and race set with cup and cone design for optimal fitment. |
| 1999 | Ford | F-350 | Rear Inner | Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| 1999 | Ford | F-350 Super Duty | Rear Inner | with 10.5 (in) Ring Gear; Single Rear Wheel; Taper Bearing Set Includes Cup and Cone |
| No rows match your filter. | ||||
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Schaeffler — NP064306F81W-1243AAF81Z-1243AA