Black Bearing bottom bracket steel bearing PressFit PF 46 68 - 73 mm SRAM DUB 28.99 mm spindle BB-46-68/73-D-B5

BLACKBEARING B5 Bottom Bracket – 46 – 68/73 – DUB

EAN: 3760290195608
Part Number: BB-46-68/73-D-B5
Type: Bottom Bracket – DUB Compatible

The BLACKBEARING B5 Bottom Bracket is a premium-grade solution designed for modern high-performance cycling drivetrains. With precise engineering, high-quality sealing, and smooth-running bearings, it delivers low friction, quiet operation, and long-lasting durability even under heavy load conditions.

Key Features

• Premium BLACKBEARING B5 construction
• SRAM DUB compatible system
• 28.99 mm SRAM DUB spindle diameter
• 46 mm BB shell diameter
• 68/73 mm frame compatibility
• Double-sealed design for maximum protection
• Low rolling resistance for efficient power transfer
• Excellent resistance to dust, mud, and water
• Precision manufacturing for long service life
• Optimized for high-performance cycling use

Technical Specifications

Applications

• Road bikes
• Mountain bikes (MTB)
• Gravel bikes
• Bikes equipped with SRAM DUB drivetrains
• High-load performance cycling applications

In Practice

The BLACKBEARING B5 Bottom Bracket is an ideal upgrade or replacement for worn original components. Its reinforced sealing system provides strong protection against dirt, water, and mud, while maintaining smooth rotation and efficient power transfer. Designed specifically for the 28.99 mm SRAM DUB spindle standard, it ensures wide compatibility and reliable long-term performance.