Black bearing bearing 15 × 21 × 4 mm B5 6702-2RS UB-6702-B5

BLACKBEARING B5 6702-2RS Bearing – 15 × 21 × 4 mm

EAN: 3760290191709
Part Number: UB-6702-B5
Brand: BLACKBEARING
Type: Deep Groove Ball Bearing (2RS)

The UB-6702-B5 is a premium-quality, thin-section deep groove ball bearing designed specifically for cycling and precision mechanical applications. The BLACKBEARING B5 series provides excellent rolling performance, low friction, and long service life while offering effective protection against water, dust, and other contaminants. The bearing is manufactured using SAE52100 chrome steel components, reinforced 2RS seals, and premium-quality lubricant to ensure reliable and durable operation.

Key Features

• Premium BLACKBEARING B5 quality
• 6702-2RS standard bearing
• Double rubber seals (2RS)
• Low rolling resistance
• Effective protection against dust and moisture
• Precision manufacturing and assembly
• SAE52100 chrome steel balls (ABEC 5)
• SAE52100 chrome steel rings with precision-ground raceways
• Chrome-plated steel cage
• Pre-filled with high-quality lubricant
• Long service life and reliable performance

Technical Specifications

Applications

• Wheel hubs
• Derailleur pulleys
• Pedals
• Frame pivots and suspension linkage points
• Lightweight bicycle components
• Other precision rotating assemblies

In Practice

The UB-6702-B5 is an ideal choice for applications where compact dimensions, low weight, and high reliability are essential. The reinforced 2RS seals provide excellent protection against moisture and contamination, while precision manufacturing and high-quality materials ensure smooth, quiet, and durable operation.