10 Pack JDB Bearing Bushing Sleeve 8mm Bore 12mm OD 20mm Length Self Lubricating Graphite Brass Bushings for Linear Guides and Friction Reduction in Mechanical Assemblies for CNC and Robotics

10-Pack Graphite-Brass Bearing Sleeve, 8x12x20mm
✔️ 8mm bore, 12mm OD, 20mm length; self-lubricating graphite

These bearing sleeves are graphite-impregnated brass bushings designed to guide shafts and reduce friction in linear motion systems. They’re commonly used in CNC machines, robotics, printing equipment, and other mechanical assemblies where maintenance-free operation is desired.

✅ 8mm bore, 12mm outer diameter, 20mm length
✅ Material: cast brass with graphite for self-lubrication
✅ Temperature and corrosion resistance in high-temp environments
✅ Pack size: 10-piece pack
✅ Suitable for linear guides, shafts, wheels in CNC and robotics

💡 What is a graphite self-lubricating brass bearing sleeve used for in linear motion systems?

It provides a maintenance-free sliding surface for shafts and fasteners in tight spaces and high-load setups.

- Handy for CNC guides, robotic axes, and machine tools
- Self-lubricating graphite in brass enables maintenance-free operation
- Fits 8x12x20 mm sleeve sizes with reinforced housings for long life