Black bearing bearing 20 × 42 × 12 mm B5 6004-2RS UB-6004-B5

BLACKBEARING B5 6004-2RS Bearing – 20 × 42 × 12 mm

EAN: 3760290191594
Part Number: UB-6004-B5
Type: Deep Groove Ball Bearing (2RS)

The BLACKBEARING B5 6004-2RS is a premium-grade industrial bearing designed for high-performance cycling and demanding mechanical applications. Precision-engineered with high-quality sealing and advanced lubrication, it ensures low friction, smooth rotation, and long-lasting durability even under heavy loads and harsh conditions.

Key Features

• Premium BLACKBEARING B5 series bearing
• 6004-2RS standard
• Double rubber seals (2RS) for maximum protection
• Low rolling resistance for efficient performance
• Excellent resistance against dust and moisture
• Precision manufacturing and assembly
• Steel cage construction for durability
• Pre-filled with high-performance grease (+90%)
• Optimized for cycling applications
• Long service life and reliable operation

Technical Specifications

Applications

• Bicycle wheel hubs
• Bottom brackets
• Pedals
• Freehubs and freewheel systems
• Suspension pivot points
• Other precision rotating assemblies

In Practice

The BLACKBEARING B5 6004-2RS is an ideal replacement for worn or damaged original bearings. Its reinforced sealing system provides strong protection against water, dust, and contaminants while maintaining smooth, efficient rotation. The widely used 6004 size makes it a reliable choice across many cycling and mechanical applications where durability and consistent performance are essential.