BBB Precision 11278 Tapered Roller Bearing Cup Outer Race

The BBB Precision 11278 is a precision-manufactured tapered roller bearing cup (outer race) designed to pair with compatible tapered roller bearing cones in demanding automotive, industrial, and powersports applications. Engineered to exacting tolerances, this bearing cup provides a hardened raceway surface that efficiently handles combined radial and axial (thrust) loads.

Key Features:

• Type: Tapered roller bearing cup (outer race/ring)
• Bore/OD: Designed to match the 11278 standard series bearing dimensions
Material: High-grade bearing steel with precision ground raceway
• Heat Treatment: Case-hardened for extended service life and wear resistance
• Interchangeable with Timken 11278, National 11278, and other industry-standard 11278 cups
• Manufactured to ABMA/ANSI standards for consistent fit and performance

The 11278 cup is commonly used in automotive wheel bearing assemblies, axle applications, transmissions, and various industrial equipment. It is designed for use with the matching 11162 or compatible tapered roller bearing cone. BBB Precision manufactures this component to OEM-equivalent specifications, making it a reliable direct replacement for worn or damaged bearing cups.