Black Bearing bottom bracket ceramic bearing PressFit 46 68 - 92 mm SRAM DUB 28.99 mm spindle BB-46-68/92-D-C

BLACKBEARING SRAM DUB Bottom Bracket – 46 × 68/92 mm – Ceramic Bearings

The BLACKBEARING BB-46-68/92-D-C is a premium bottom bracket designed for frames with a 46 mm PressFit bottom bracket shell and SRAM DUB cranksets. Its ceramic bearings provide exceptionally low friction, smooth operation, and extended service life. The threaded-together cup design improves shell alignment and helps reduce creaking.

Key features

• Designed for SRAM DUB cranksets (28.99 mm spindle)
• Compatible with 46 mm PressFit bottom bracket shells
• Fits frame shell widths from 68 mm to 92 mm
• Premium ceramic bearings
• Thread-together aluminum cup design
• Improved shell alignment for smoother performance
• Reduced risk of creaking and noise
• Easy bearing replacement
• Installation tool included

Technical specifications

Compatibility

• SRAM DUB cranksets
• PF30, BB386EVO, and other 46 mm internal diameter frame standards within the compatible width range
• Road, gravel, and MTB applications

In practice

The threaded aluminum cups screw together through the frame, improving bottom bracket alignment and reducing the likelihood of creaks. Combined with high-performance ceramic bearings, this design delivers smooth pedaling, efficient power transfer, and long-term durability for demanding road, gravel, and mountain bike riders.