BLACK BEARING B5 Bearing - ABEC5 - 30x41/44x10mm for BB86/92

Specifically designed for cycling, this top-quality range is ideal for withstanding the most extreme conditions.
Every component (balls, rings, cages and grease) is precision-manufactured and assembled.

A BlackBearing B5 bearing is synonymous with reliability, smoothness and durability...

It's the best-selling bearing in the range and is 100% compatible as a replacement for your original bearings.

Technical specifications :

• SAE52100 chromium-plated steel balls
• SAE52100 chromium-plated steel rings with ground raceway
• 2RS" seals: latest-generation double-lip labyrinth seals. Better resistance to water and dust, combined with reduced friction.
• Ground tracks for smooth operation and long service life.
• Highest quality lubricants.
• Chrome-steel cage