6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
6704, 6704Z, 6704ZZ, 6704RS, 6704-2RS Ball Bearings 20x27x4mm – Miniature Deep Groove Ball Bearings for High-Speed & Precision Mechanical Devices
High-precision 6704 series miniature ball bearings in compact size 20mm (ID) × 27mm (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:
Manufactured from high-quality chrome steel (GCr15), these bearings feature precision-ground raceways for smooth, quiet rotation and extended service life under light radial loads. Commonly used in small electric motors, power tools, drones, RC vehicles, 3D printers, robotics, medical instruments, office equipment, and precision automation systems.
Most sealed models are pre-lubricated with high-performance grease for maintenance-free operation. The 6704 series supports both radial and limited axial loads, making it ideal for compact, high-speed mechanical assemblies requiring reliability and efficiency.
🔧 Key Specifications:
