


ML1204 1.2mm x 4mm x 1.8mm Miniature Ball Bearing
UPC: 00193019068922
Type: Radial Small Bearing
ML1204 Dimensions: 1.2mm x 4mm x 1.8mm
Bearing Inner Diameter: 1.2mm ID/Bore
Bearing Outer Diameter: 4mm OD
ML1204 Miniature Ball Bearing
✔️ 1.2mm x 4mm x 1.8mm - Open Chrome Steel Micro Bearing
The ML1204 is a precision open-style miniature bearing built for ultra-small assemblies. Made from durable 52100 chrome steel, it's perfect for delicate instruments, micromotors, and ultra-compact mechanisms where space is extremely limited and performance matters.
✅ Inner diameter: 1.2mm
✅ Outer diameter: 4mm
✅ Width: 1.8mm
✅ Open-style bearing - no seals or shields
✅ Made from 52100 chrome steel for high wear resistance
✅ Metric standard sizing
✅ Quantity: 1 miniature bearing
💡 Where are ultra-small open ball bearings like ML1204 typically used?
Micro bearings like this are built for space-limited precision work:
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Ideal for tiny motors, tools, and medical devices
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Open design keeps friction low in clean environments
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Used in RC builds, watch mechanisms, and robotics
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Great when sealed protection isn't required
When small size meets serious precision, this bearing delivers. Add it to your ultra-miniature setup and keep everything spinning smooth.