Black bearing bearing 17 × 26 × 7 mm B5 63803-2RS UB-63803-B5

BLACKBEARING B5 63803-2RS Bearing – 17 × 26 × 7 mm

EAN: 3760290192492
Part Number: UB-63803-B5
Brand: BLACKBEARING
Type: Deep Groove Ball Bearing (2RS)

The UB-63803-B5 is a premium deep groove ball bearing designed for cycling and other demanding mechanical applications. The BLACKBEARING B5 series is engineered to provide smooth rotation, low friction, and long-lasting durability while ensuring strong resistance against dust, water, and contamination.

Key Features

• Premium BLACKBEARING B5 quality
• 63803-2RS standard
• Double rubber seals (2RS)
• Low rolling resistance
• Excellent protection against dust and moisture
• Precision manufacturing with tight tolerances
• Steel cage construction
• Chrome steel balls (SAE52100)
• Pre-filled with high-quality lubricant
• Long service life and reliable performance

Technical Specifications

Applications

• Bicycle hubs
• Bottom brackets
• Suspension linkage points
• Frame pivots
• BMX and urban bicycles
• Skateboards and inline skates
• Other precision rotating components

In Practice

The UB-63803-B5 is a robust and precise replacement bearing suitable for high-load cycling applications. Its reinforced 2RS sealing system effectively prevents contamination, while the precision-ground components and premium lubrication ensure smooth, efficient, and durable operation even under demanding conditions.