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National HM212011 Wheel Bearing Race - Front Inner
| Brand | National HM212011 |
|---|---|
| Position | Front Inner |
| Cup Bore (Inch) | 4.8130 |
| Cup Bore (MM) | 122.2500 |
| Cup Length (Inch) | 1.1700 |
| Cup Length (MM) | 29.7180 |
| Cup Radius (Inch) | 0.1300 |
| Cup Radius (MM) | 3.3020 |
| Part Description | Taper bearing cup |
| Fits | — |
Premium-grade steel. Built for durable wheel bearing support.
Crowned raceways. Promotes even load distribution across the bearing.
Taper bearing cup. A precise race for wheel bearing assemblies.
Cross-references ACI 384458, Bosch 15151 and Eastern Catalytic 93424 for the same application. See all 103.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
National HM212011 Wheel Bearing Race
The National HM212011 is a taper bearing cup made from premium-grade steel for wheel bearing service. Its crowned raceway helps distribute load evenly across the bearing surface, supporting smooth operation in driveline and axle applications.
Key Features
- Premium-grade steel construction for wheel bearing use
- Crowned raceway for more even load distribution
- Cup bore: 4.8130 in. / 122.2500 mm
- Cup length: 1.1700 in. / 29.7180 mm
- Cup radius: 0.1300 in. / 3.3020 mm
- Part description: taper bearing cup
- Part number: HM212011
Detailed Description
National HM212011 is a wheel bearing race engineered as a taper bearing cup for driveline and axle assemblies. The steel cup is built with a crowned raceway profile to help distribute bearing load more evenly, which is important in applications that rely on stable wheel-end support. This part number is commonly searched for wheel bearing race replacement, taper bearing cup replacement, and National HM212011 fitment across axle and hub service needs. It also cross-references Monroe Shocks & Struts 181411 for the same application.
For buyers comparing National HM212011 against other wheel bearing race options, the listed dimensions provide the key sizing reference points needed for service matching. Search terms such as wheel bearing cup replacement, taper bearing race for axle service, and National HM212011 wheel bearing race are commonly used when sourcing this component.
What It Helps Address
- Wheel-end noise related to worn bearing race surfaces
- Rough bearing rotation caused by damaged cup raceways
- Uneven load transfer in taper bearing assemblies
- Service replacement needs for axle and hub bearing maintenance
- Fitment matching for National HM212011 applications
Installation Notes and Tips
Confirm the cup bore, length, and radius against the original race before installation. Inspect the bearing cone, hub, and spindle surfaces for wear or scoring, and replace any damaged mating components as needed. Press the race fully into place using proper bearing service tools to avoid distortion. Verify the final assembly rotates smoothly after installation.
Quality Assurance
National manufactures this taper bearing cup with premium-grade steel and a crowned raceway profile to support consistent bearing load distribution. Use the part number HM212011 and the listed dimensions to confirm the correct replacement before service. Compatible vehicle searches often include Ford F-250 and Ford F-350 wheel bearing race applications, depending on axle configuration and service requirements.
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