Black bearing bearing ceramic 18 × 30 × 7 mm B5 18307-2RS UB-18307-CS

BLACKBEARING Ceramic Hybrid 18307-2RS Bearing – 18 × 30 × 7 mm

EAN: 3760290198357
SKU: UB-18307-CS
Brand: BLACKBEARING
Type: Hybrid Ceramic Deep Groove Ball Bearing (2RS)

The BLACKBEARING UB-18307-CS is a premium-quality hybrid ceramic bearing designed for high-performance cycling applications. The 18307-2RS bearing has dimensions of 18 × 30 × 7 mm and is developed for precision rotating components requiring low friction, smooth operation, and long service life.

The hybrid construction combines steel races with silicon nitride (Si₃N₄) ceramic balls, providing reduced friction, improved rolling efficiency, increased wear resistance, and extended durability compared to standard steel bearings.

The double 2RS rubber sealing system protects the bearing against dust, moisture, and contamination while keeping the lubricant inside for smooth and reliable operation.

Key Features

• Premium BLACKBEARING quality
• Hybrid ceramic construction
• 18307-2RS standard
• Double rubber seals (2RS)
• Silicon nitride (Si₃N₄) ceramic balls
• Excellent rolling efficiency
• Low friction
• High wear resistance
• Protection against water and dust
• Long service life

Technical Specifications

Applications

• Wheel hubs
• Freehub bodies
• Bottom bracket systems
• Derailleur pulleys
• E-bike components
• Other precision rotating components

In Practice

The BLACKBEARING UB-18307-CS is designed for demanding cycling applications where smooth rotation, reduced friction, and long-term reliability are essential. The hybrid ceramic design improves efficiency and durability compared to conventional steel bearings.

With its 18 × 30 × 7 mm dimensions, this bearing is suitable for various bicycle components requiring high-quality bearing performance and reliable operation.