BCA part description

National® Oil Seals & Bearings offer a full line of premium oil seals and bearings.
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
TAPER SET
Part Description Taper Bearing Set
Taper Bearing Cone LM12749
Cone Bore (Inch) 0.8661
Cone Bore (MM) 21.9990
Cone Length (Inch) 0.6550
Cone Length (MM) 16.6370
Cone Radius (Inch) 0.0500
Cone Radius (MM) 1.2700
Taper Bearing Cup LM12710
Cup Bore (Inch) 1.7810
Cup Bore (MM) 45.2370
Cup Length (Inch) 0.4750
Cup Length (MM) 12.0650
Cup Radius (Inch) 0.0500
Cup Radius (MM) 1.2700
Standout (Inch) 0.0135
Standout (MM) 0.3430
Width (Inch) 0.6100
Width (MM) 15.4940

The Bearing Corporation of America (BCA®) is backed by over 100 years of experience supplying the American market with top-of-the-line wheel-end solutions. Headquartered in a 670,000-square-foot state-of-the-art facility in Illinois, BCA is renowned as the top supplier of automotive and medium-duty hub assemblies, seals, and bearings for various domestic and foreign applications. BCA products are designed for technicians that need replacement parts that fit right the first time they are installed. These OE solutions, which provide an exact fit, superior performance, unmatched durability, and longer service life, are products of BCA’s commitment to modern technological advancements and the brand’s design philosophy that focuses on performance.

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