6801, 6801Z, 6801ZZ, 6801RS, 6801-2RS Ball Bearings 12x21x5mm – Ultra-Miniature Deep Groove Ball Bearings for High-Speed & Precision Micro Mechanical Systems

6801, 6801Z, 6801ZZ, 6801RS, 6801-2RS Ball Bearings 12x21x5mm – Ultra-Miniature Deep Groove Ball Bearings for High-Speed & Precision Micro Mechanical Systems

Ultra-compact 6801 series deep groove ball bearings in size 12mm (ID) × 21mm (OD) × 5mm (W), engineered for micro-mechanical and precision applications where space is limited but smooth, quiet, and high-speed rotation is essential. Available in multiple sealing configurations to suit diverse operating environments:

• 6801: Open type – ideal for cleanroom conditions or custom lubrication
• 6801Z / 6801ZZ (6801-2Z): Single or double metal shields – protect against dust while retaining lubricant
• 6801RS / 6801-2RS: Single or double rubber seals – provide excellent resistance to moisture, dirt, and contaminants

Manufactured from high-grade chrome steel (GCr15), these micro bearings feature precision-ground raceways for low-friction, low-noise performance under light radial loads. Commonly used in miniature electric motors, dental handpieces, surgical instruments, micro drones, robotics joints, smart wearables, cooling fans, lab automation equipment, and precision instrumentation.

Most sealed models are pre-lubricated with high-performance grease for maintenance-free operation. The 6801 series supports both radial and limited axial loads, making it ideal for compact, high-RPM systems requiring reliability, quietness, and long service life.

🔧 Key Specifications:

• Models: 6801, 6801Z, 6801ZZ (6801-2Z), 6801RS, 6801-2RS
• Dimensions: 12 × 21 × 5 mm
• Material: Chrome Steel (GCr15)
• Precision Rating: ABEC-1 (ISO P0)
• Ideal for: Medical devices, micro-electronics, robotics, and precision micro-mechanisms