BCA NBA6 Tapered Roller Bearing and Race Set

The BCA NBA6 is a precision-engineered tapered roller bearing and race set designed for light- and medium-duty automotive applications. Manufactured by the Bearing Corporation of America in partnership with NTN, this OE-style replacement bearing delivers reliable performance for wheel hubs, differentials, transmissions, and other critical drivetrain components.

Key Features:

• Tapered roller bearing design for high-capacity radial, axial, and combined load handling
• Case carburization process creates a hard, wear-resistant outer shell with a tough ductile core
• Forged-steel construction provides exceptional durability for harsh applications
• Bore diameter: 1.250 inches
• Cup outside diameter: 2.328 inches
• Cone width: 0.660 inches
• Cup width: 0.465 inches
• Application-specific engineering reduces noise, vibration, and harshness (NVH)
• Rolling element cages maintain proper spacing to reduce friction and operational temperatures
• Up to 40% longer service life compared to through-hardened bearings

This bearing set is compatible with thousands of domestic and import vehicles, and cross-references to multiple OEM part numbers including 2421068, MB002072, MB515026, 1615339, and 1619686. Backed by over 100 years of bearing manufacturing expertise, BCA products are designed to fit right the first time and deliver optimal performance and extended service life.