623ZZ Ball Bearing 3x10x4mm

623ZZ Ball Bearing — 3x10x4mm

The 623ZZ is a micro deep-groove ball bearing with a 3mm bore, 10mm outer diameter, and 4mm width. Fitted with double metal shields (ZZ), it keeps dust and debris out while retaining lubrication, making it a reliable, low-maintenance choice for very small-scale rotating assemblies.

Its extra-compact size makes it ideal for tight spaces where even a 605 or 606 bearing would be too large — commonly used in micro robotics, small drone components, and precision instruments needing smooth, low-friction rotation on a 3mm shaft.

Product Details

Features

• Double metal shields protect against dust and contamination
• Pre-lubricated for smooth, low-friction rotation
• Extra-compact micro size for very space-constrained assemblies
• Consistent radial load performance for light-duty applications
• Standard bearing dimensions — compatible with common 3mm shafts

Applications

• Micro robotics and small precision mechanisms
• Small drone and RC model components
• 3D printer small idler pulleys and tensioners
• Precision instruments and miniature mechanical assemblies
• Fidget toys and other small rotating builds

Package Includes

• 1 x 623ZZ Ball Bearing (3x10x4mm)

Note: Product images are for illustrative purposes; actual product may vary slightly in finish or packaging.