12mm Diameter Linear Bearing Pillow Block [SBR12UU]

An SBR12UU sliding linear ball-bearing pillow block for use with 12 mm supported rail systems. The platform slides smoothly along the rail on internal ball bearings, providing low-friction linear motion for CNC machines, 3D printers, and robotics projects.

The slider measures 39 × 36 mm and has four holes tapped for M5 machine screws, making it easy to mount a platform, tool holder, or other hardware. The pillow block won't come off the rail by itself but can rotate slightly, so using two parallel rails is recommended for stable, rigid motion.

Key Features

• SBR12UU Type – Designed for 12 mm diameter supported linear rails
• Ball Bearing Interior – Smooth, low-friction linear travel
• M5 Mounting Holes – Four tapped holes for secure platform attachment
• Compact Platform – 39 × 36 mm slider body

Specifications

• Type – SBR12UU pillow block
• Rail Diameter – 12 mm
• Platform Size – 39 × 36 mm
• Mounting – 4× M5 tapped holes

Ideal For

• CNC routers and laser cutters
• 3D printer motion systems
• Robotics linear actuators
• Any project requiring smooth linear motion on a supported rail

Package Contents

• 1× SBR12UU Linear Bearing Pillow Block