Black bearing bearing headset 40.5 × 49.5 × 6.5 mm 45° / 45° mm HB-D15

BLACKBEARING D15 headset bearing – 40.5 × 49.5 × 6.5 mm (45°/45°)

The BLACKBEARING D15 is a high-quality sealed cartridge headset bearing designed for bicycle steering systems. Precision manufacturing, low friction, and effective sealing provide smooth steering performance and long service life.

Key features

• High-quality BLACKBEARING headset bearing
• Sealed cartridge design
• 45°/45° angular contact configuration
• Low rolling resistance
• High protection against dust, mud, and moisture
• Chrome steel races and balls
• Precision-ground contact surfaces for smooth operation
• Durable grease for extended service life
• Designed for bicycle headset systems

Technical specifications

Compatibility

• Headset systems requiring a 40.5 × 49.5 × 6.5 mm bearing
• 45°/45° angular contact design
• Specific integrated headset standards
• Always verify dimensions and contact angles before installation, as these bearings are not universally interchangeable

In practice

• Ideal replacement for worn or damaged headset bearings
• Provides smooth and precise steering feel
• Sealed construction protects against dirt and moisture
• Durable design ensures long service life
• Suitable for road, gravel, MTB, and e-bike use