6706, 6706Z, 6706ZZ, 6706RS, 6706-2RS Ball Bearings 30x37x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Systems

6706, 6706Z, 6706ZZ, 6706RS, 6706-2RS Ball Bearings 30x37x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Systems

High-precision 6706 series miniature ball bearings in compact size 30mm (ID) × 37mm (OD) × 4mm (W), engineered for space-constrained, high-speed, and low-noise applications. Available in multiple sealed and shielded configurations to suit diverse operating environments:

• 6706: Open type – ideal for applications requiring re-lubrication or custom sealing
• 6706Z / 6706ZZ (6706-2Z): Single or double metal shields – provide effective protection against dust and help retain lubricant
• 6706RS / 6706-2RS: 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 vehicles, 3D printers, robotics, medical instruments, office automation equipment, and precision mechanical assemblies.

Most sealed models are pre-lubricated with high-performance grease for maintenance-free operation. The 6706 series supports both radial and limited axial loads, making it ideal for compact, high-speed systems where reliability and efficiency are essential.

🔧 Key Specifications:

• Models: 6706, 6706Z, 6706ZZ (6706-2Z), 6706RS, 6706-2RS
• Dimensions: 30 × 37 × 4 mm
• Material: Chrome Steel (GCr15)
• Precision Rating: ABEC-1 (ISO P0)
• Ideal for: High-speed, low-vibration, precision mechanical systems