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
Product Code: BB-46-68/73-D-C
Brand: BLACKBEARING
Type: PressFit Bottom Bracket
Standard: PF46 / PressFit 46
Shell Diameter: 46 mm
Shell Width: 68–73 mm
Crank Compatibility: SRAM DUB (28.99 mm)
Bearing Type: Ceramic

The BLACKBEARING BB-46-68/73-D-C is a premium PressFit bottom bracket designed for frames with a 46 mm internal shell diameter and 68–73 mm shell width. It is specifically engineered for SRAM DUB cranksets featuring a 28.99 mm spindle diameter. The premium ceramic bearings provide exceptionally low friction, smooth rotation, and extended service life.

The sealed design helps protect the bearings from dirt, moisture, and contamination, ensuring reliable performance in demanding road, gravel, and MTB conditions.

KEY FEATURES

• Premium BLACKBEARING Ceramic series
• Compatible with SRAM DUB cranksets (28.99 mm spindle)
• PF46 / PressFit 46 standard
• Fits 68 mm and 73 mm bottom bracket shell widths
• High-performance ceramic bearings
• Extremely low rolling resistance
• Excellent durability and wear resistance
• Improved power transfer efficiency
• Lightweight construction
• Suitable for road, gravel, and MTB applications

TECHNICAL SPECIFICATIONS

• Brand: BLACKBEARING
• Product Code: BB-46-68/73-D-C
• EAN: 3760290195677
• Type: PressFit Bottom Bracket
• Standard: PF46 / PressFit 46
• Shell Diameter: 46 mm
• Shell Width: 68–73 mm
• Crank Compatibility: SRAM DUB
• Spindle Diameter: 28.99 mm
• Bearing Type: Ceramic
• Application: Road / Gravel / MTB

COMPATIBILITY

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

Compatibility should always be verified according to the frame and crankset manufacturer's specifications.

APPLICATIONS

Suitable for, among others:

• Road bicycles
• Gravel bicycles
• MTB bicycles
• Performance-oriented builds
• Racing bicycles
• Endurance bicycles
• Lightweight bicycle builds
• Premium drivetrain upgrades
• Replacement and upgrade projects

IN PRACTICE

The BLACKBEARING BB-46-68/73-D-C is designed for cyclists who want to maximize the efficiency of their SRAM DUB crankset. The ceramic bearings generate less friction than traditional steel bearings, resulting in smoother rotation, improved drivetrain efficiency, and longer service life.

Thanks to its PF46 design, it is compatible with many modern road, gravel, and MTB frames. It is an excellent choice for riders seeking reliable performance, reduced rolling resistance, and maximum power transfer efficiency in demanding riding conditions.