10-Pack 681ZZ Miniature Ball Bearings 1x3x1mm | Metal Open
10-Pack 681ZZ Miniature Ball Bearings 1x3x1mm | Metal Open
10-Pack 681ZZ Miniature Metal Ball Bearings – 1×3×1mm
Precision-engineered and ultra-compact, these 681ZZ miniature ball bearings are the go-to choice for hobbyists, model makers, and engineers who need reliable, low-friction rotation in tight spaces. With an inner diameter of just 1mm and an outer diameter of 3mm, these micro bearings fit seamlessly into small motors, RC cars, drones, spinners, and precision instruments.
Made in Mainland China.
Key Features
- Model: 681ZZ
- Material: Iron (metal open construction)
- Color: Silver tone
- Inner Diameter: 1mm
- Outer Diameter: 3mm
- Thickness: 1mm
- Pack Size: 10 pieces
Why Choose These Micro Bearings?
- ✅ Ultra-compact 1×3×1mm size — perfect for miniature assemblies where space is critical
- ✅ Metal open design — allows for easy cleaning and re-lubrication
- ✅ Smooth, consistent rotation — reduces friction in high-speed micro applications
- ✅ Versatile use — compatible with RC models, spinners, micro motors, robotics, DIY projects, and more
- ✅ Value pack — 10 bearings per order, so you always have spares on hand
Common Applications
- RC cars, trucks, and aircraft
- Drones and quadcopters
- Fidget spinners and gyroscopes
- Miniature motors and robotics
- Precision instruments and clocks
- DIY mechanical projects
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Frequently Asked Questions
Q: What is the exact size of the 681ZZ miniature ball bearing?
A: The 681ZZ ball bearing measures 1mm inner diameter × 3mm outer diameter × 1mm thickness, making it one of the smallest standard micro bearings available for precision applications.
Q: What are these 681ZZ micro bearings commonly used for?
A: These miniature ball bearings are widely used in RC cars, drones, fidget spinners, micro motors, robotics, small mechanical clocks, and various DIY precision engineering projects that require smooth, low-friction rotation in a very small footprint.
Q: Are these bearings open or shielded?
A: These are metal open-style bearings (despite the "ZZ" designation, please verify upon receipt as configurations may vary). The open design allows for straightforward cleaning and lubrication to maintain smooth performance over time.