6709, 6709Z, 6709ZZ, 6709RS, 6709-2RS Ball Bearings 45x55x6mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Systems

6709, 6709Z, 6709ZZ, 6709RS, 6709-2RS Ball Bearings 45x55x6mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Systems

High-precision 6709 series miniature deep groove ball bearings in size 45mm (ID) × 55mm (OD) × 6mm (W), designed for compact, high-speed, and low-noise mechanical applications. Available in multiple configurations to suit diverse operating environments:

• 6709: Open type – ideal for re-lubrication or custom sealing in controlled conditions
• 6709Z / 6709ZZ (6709-2Z): Single or double metal shields – protect against dust and help retain lubricant
• 6709RS / 6709-2RS: Single or double rubber seals – offer superior resistance to moisture, dirt, and contaminants

Manufactured from high-quality chrome steel (GCr15), these bearings feature precision-ground raceways for smooth, quiet rotation and extended service life under light to moderate radial loads. Commonly used in small electric motors, power tools, drones, RC models, robotics, medical devices, 3D printers, office automation equipment, and precision instrumentation.

Most sealed versions are pre-lubricated with high-performance grease for maintenance-free operation. The 6709 series supports both radial and limited axial loads, making it ideal for compact, high-speed systems where reliability and efficiency are critical.

🔧 Key Specifications:

• Models: 6709, 6709Z, 6709ZZ (6709-2Z), 6709RS, 6709-2RS
• Dimensions: 45 × 55 × 6 mm
• Material: Chrome Steel (GCr15)
• Precision Rating: ABEC-1 (ISO P0)
• Ideal for: High-speed, low-vibration, space-efficient mechanical systems