Description
The LM4UU 4mm Linear Ball Bearing is a compact component designed to support smooth linear movement along a compatible 4mm shaft or guide rod. It is suitable for applications requiring controlled motion, including 3D printers, CNC machines, engraving equipment, and custom mechanical assemblies.
Manufactured from carbon chromium bearing steel, this bearing is designed for use in compatible linear motion systems. Its small size makes it a practical choice for compact machinery and projects where space is limited.
For smooth operation and extended service life, appropriate lubrication may be required. A running-in period may also be necessary depending on the application. Before installation, check the shaft diameter and bearing dimensions to ensure a proper fit.
Features
- Smooth Linear Movement: Supports low-friction travel along compatible 4mm shafts.
- Durable Material: Made from carbon chromium bearing steel.
- Compact Design: Suitable for small mechanical assemblies and motion systems.
- Versatile Applications: Ideal for 3D printers, CNC machines, and DIY projects.
- Maintenance: May require suitable lubrication and a running-in period.
Specifications
- Product Name: LM4UU Linear Ball Bearing
- Model: LM4UU
- Bearing Type: Linear ball bearing
- Inner Diameter: 4mm
- Outer Diameter: 8mm
- Length: 12mm
- Dimensions: 4 × 8 × 12mm (inner diameter × outer diameter × length)
- Material: Carbon chromium bearing steel
- Compatible Shaft Diameter: 4mm
- Applications: 3D printers, CNC machines, engraving equipment, and linear motion systems
Package Includes
- 1 × LM4UU 4mm Linear Ball Bearing





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