691 Bearing Open 1x4x1.6mm Miniature Micro Ball Bearing

691 Open Miniature Ball Bearing
✔️ 1mm x 4mm x 1.6mm - High Precision

The 691 open deep groove miniature ball bearing is designed for ultra-compact applications where precision and high speed are key. Made from durable 52100 chrome steel, its open design allows for easy lubrication and low friction performance in micro-mechanical setups. Pack size: 1 bearing.

✅ Inner Diameter (ID): 1mm
✅ Outer Diameter (OD): 4mm
✅ Width: 1.6mm
✅ Type: Deep groove miniature ball bearing
✅ Closures: Open
✅ Dynamic Load Rating (Cr): 140 N
✅ Static Load Rating (Cor): 40 N
✅ Grease Limiting Speed: 120,000 RPM
✅ Material: 52100 chrome steel

💡 Why use open miniature ball bearings in micro applications?
They offer low resistance and precise rotation in tiny assemblies.

• Allows for direct lubrication for extended life

• Maintains accuracy in high-speed micro-mechanisms

• Reduces friction for smoother operation

• Fits extremely tight design tolerances

If you need ultra-small, high-speed precision bearings, this one’s a perfect fit, order today and keep your micro-projects running flawlessly.