10 Pack 693ZZ Shielded Bearings 3x8x4mm Pre Lubricated Low Friction Quiet Operation Dust Proof Seal Prevents Lubricant Leakage And Dust Intrusion Improved High RPM Performance Heat Reduction And Overall Efficiency For Small Motors Beefed Up

10 Pack 693ZZ Shielded Bearings 3x8x4mm, Pre-Lubricated
✔️ Low-friction, sealed on both sides, pre-lubricated, dustproof

Compact 3x8x4 mm 693ZZ shielded bearings come in a 10-pack. They are factory pre-lubricated and fully sealed to block dust, moisture, and lubricant leakage, making them ready for small motors, RC kits, 3D printers, skateboards, and light power tools.

Pack size: 10 bearings
Size: 3x8x4 mm
Shielding: double-sided to resist dust and moisture
Lubrication: factory pre-lubricated with high-speed grease
Sealing: prevents lubricant leakage and dust intrusion
Applications: skateboards, rollers, 3D printers, RC cars, power tools

What is a shielded bearing used for in small motors? This brief Q&A explains its role.

- 3x8x4 mm size and 693ZZ shielded type
- Shielded on both sides to resist dust intrusion
- Pre-lubricated with grease for maintenance-free use
- Commonly used in skateboards, 3D printers, RC cars, and hobby tools
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