Black Bearing bottom bracket ceramic bearing PressFit PF 46 68 - 73 mm SRAM DUB 28.99 mm spindle BB-46-68/73-D-C

BLACKBEARING Ceramic Bottom Bracket – PF46 68/73 mm – SRAM DUB

EAN: 3760290195677
Part number: BB-46-68/73-D-C
Type: PressFit bottom bracket

The BLACKBEARING BB-46-68/73-D-C is a premium PressFit bottom bracket designed for frames with a 46 mm bottom bracket shell diameter and 68/73 mm shell width. It is specifically engineered for SRAM DUB cranksets with a 28.99 mm spindle and features high-performance ceramic bearings for maximum efficiency and durability.

Key features

• BLACKBEARING Ceramic series bottom bracket
• Compatible with SRAM DUB cranksets (28.99 mm spindle)
• PF46 / PressFit 46 standard
• Fits 68 mm and 73 mm bottom bracket shells
• High-performance ceramic bearings
• Reduced friction for improved drivetrain efficiency
• Excellent durability and wear resistance
• Smooth and efficient power transfer
• Lightweight construction
• Suitable for road, gravel, and MTB applications

Technical specifications

Compatibility

• PF46 (46 mm) frame shells
• 68 mm road frames
• 73 mm MTB frames
• SRAM DUB cranksets
• SRAM and Truvativ DUB systems

In practice

The BB-46-68/73-D-C is designed for riders seeking maximum drivetrain efficiency and long-term performance from a SRAM DUB setup. The ceramic bearings reduce rolling resistance compared to standard steel bearings while providing smooth rotation and excellent durability. Its PF46 design allows installation in modern 46 mm PressFit frames used across road, gravel, and mountain bikes.