National B-66 Wheel Bearing - Front Inner
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National

National B-66 Wheel Bearing - Front Inner

Brand National B-66
Position Front Inner
Bore (Inch) 1.375
Bore (mm) 34.912
Design Single row angular contact
Inner Race Bore (Inch) 1.375
Inner Race Bore (MM) 34.912
Inner Race Outside Diameter (Inch) 1.995
Inner Race Outside Diameter (MM) 50.673
Inner Race Radius (Inch) 0.140
Inner Race Radius (MM) 3.556
Inner Race Width (Inch) 0.646
Inner Race Width (MM) 16.408
Outer Race Bore (Inch) 2.443
Outer Race Bore (MM) 62.052
Outer Race Outside Diameter (Inch) 2.963
Outer Race Outside Diameter (MM) 75.268
Outer Race Width (Inch) 0.571
Outer Race Width (MM) 14.503
Outside Diameter (Inch) 2.963
Outside Diameter (mm) 75.268
Part Description Wheel bearing
Series Fwbs
Type E-1
Width (Inch) 0.761
Width (mm) 19.329
Fits Buick, Cadillac, and Oldsmobile · 52 vehicles

OE-quality replacement. Built to meet or exceed OE standards for service applications.

Single row angular contact. Supports smooth load handling in the bearing assembly.

Exacting manufacturing standards. Made for lasting performance and extended bearing life.

Cross-references Anchor 10066, Autolite 66 and Autolite 666 for the same application. See all 17.

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Wheel Bearing Overview

National B-66 is a wheel bearing built to meet or exceed OE quality standards for service applications that require precise fit and dependable rotation. Its single row angular contact design supports smooth load handling in the bearing assembly.

Compatible With classic Buick, Cadillac, and Oldsmobile applications, this bearing is specified for front inner use on the listed vehicles. The National B-66 part number appears throughout the catalog for easy identification during replacement matching.

Key Features

  • Single row angular contact design for controlled load support.
  • Premium-quality construction manufactured to exacting standards.
  • OE-quality replacement bearing for service work.
  • Series FWBS with Type E-1 identification.
  • National B-66 part number for accurate ordering and lookup.

Detailed Description

The National B-66 wheel bearing is engineered for front inner fitment on 1957-1961 Buick, Cadillac, and Oldsmobile applications listed in the catalog. It is a single row angular contact bearing with defined bore, race, and width dimensions that help ensure proper seating and consistent operation in the hub assembly. For buyers searching for a wheel bearing for 1959 Oldsmobile 98, 1957 Buick Century, or 1957 Cadillac DeVille, B-66 provides a direct catalog match.

National states that this bearing is manufactured to meet or exceed OE quality and built to exacting standards for lasting performance and extended bearing life. This part cross-references Gates B66 and Autolite 66 for the same application.

What It Helps Address

  • Wheel end noise caused by worn bearing surfaces.
  • Excessive play from a deteriorated bearing assembly.
  • Rough rotation in the hub area.
  • Service replacement needs for front inner bearing applications.

Installation Notes and Tips

Verify the bearing dimensions, series, and front inner position before installation. Match the application to the exact year, make, and model listed for Buick, Cadillac, and Oldsmobile vehicles, and inspect related hub components for wear during service.

Quality Assurance

National describes this bearing as meeting or exceeding OE quality and manufacturing standards intended to deliver extended bearing life and consistent performance.

Related reading

This part fits 52 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1961ChevroletC10 Panel——Front Inner—
1961ChevroletC10 Pickup——Front Inner—
1961ChevroletSuburban——Front Innerwith RWD
1961GMC1000 Series5.0LV6Front Inner—
1961Oldsmobile98——Front Inner—
1961OldsmobileClassic 98——Front Inner—
1961OldsmobileDynamic 88——Front Inner—
1961OldsmobileFiesta——Front Inner—
1961OldsmobileStarfire——Front Inner—
1961OldsmobileSuper 88——Front Inner—
1960BuickElectra——Front Inner—
1960BuickEstate Wagon——Front Inner—
1960BuickInvicta——Front Inner—
1960BuickLeSabre——Front Inner—
1960ChevroletC10 Panel——Front Inner—
1960ChevroletC10 Pickup——Front Inner—
1960ChevroletSuburban——Front Innerwith RWD
1960GMC1000 Series5.0LV6Front Inner—
1960GMCTruck5.0LV6Front Inner—
1960Oldsmobile98——Front Inner—
1960OldsmobileDynamic 88——Front Inner—
1960OldsmobileFiesta——Front Inner—
1960OldsmobileSuper 88——Front Inner—
1959BuickElectra——Front Inner—
1959BuickEstate Wagon——Front Inner—
1959BuickInvicta——Front Inner—
1959BuickLeSabre——Front Inner—
1959CadillacDeVille——Front Inner—
1959CadillacEldorado——Front Inner—
1959CadillacSeries 60 Fleetwood——Front Inner—
1959CadillacSeries 62——Front Inner—
1959CadillacSeries 75 Fleetwood——Front Inner—
1959Oldsmobile98——Front Inner—
1959OldsmobileDynamic 88——Front Inner—
1959OldsmobileFiesta——Front Inner—
1959OldsmobileSuper 88——Front Inner—
1958BuickCentury——Front Inner—
1958BuickLimited——Front Inner—
1958BuickRoadmaster——Front Inner—
1958BuickSpecial——Front Inner—
1958BuickSuper——Front Inner—
1958CadillacDeVille——Front Inner—
1958CadillacEldorado——Front Inner—
1958CadillacSeries 60 Fleetwood——Front Inner—
1958CadillacSeries 62——Front Inner—
1958CadillacSeries 70 Fleetwood Eldorado——Front Inner—
1958CadillacSeries 75 Fleetwood——Front Inner—
1957BuickCentury——Front Inner—
1957BuickRoadmaster——Front Inner—
1957BuickSpecial——Front Inner—
1957BuickSuper——Front Inner—
1957CadillacDeVille——Front Inner—
Directly replaces or cross-references 17 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 10066Autolite — 66Autolite — 666Gates — B66TC Remanufacturing — 56603699N074176832209M19090669095669096669097624252939BB909066F066G909066Y909066