Pro Grade SBR12 400mm Linear Rails Kit With Four SBR12UU Blocks For CNC Machines And Automated Equipment, High Precision Rails And Bearing Set For Easy Mounting And Smooth, Reliable Motion

Pro Grade SBR12 400mm Linear Rails Kit with 4 Blocks
✔️ 2x SBR12-400 rails (15.7 in) with 4x SBR12UU blocks for motion

This CNC-ready linear rail kit combines two SBR12-400 mm rails with four SBR12UU blocks, delivering smooth, reliable motion for projects. Used in CNC machines, automation equipment, and large-scale transmission systems.

✅ Includes 2 x SBR12-400 mm rails and 4 x SBR12UU blocks
✅ Made from bearing steel and aluminum alloy with chrome plating for rust resistance
✅ Adjustable tightening via the guide block handle for precise positioning
✅ High-precision linear bearings deliver smooth, reliable motion
✅ Ideal for DIY CNC routers, lathes, laser welders, and automation equipment

💡 What is a linear rail kit used for in CNC and automation projects? A handy overview for planning and purchasing. - Provides guided, low-friction motion for moving components in CNC machines - Improves positioning accuracy and repeatability in automation tasks - Eases mounting on common aluminum or steel frames with standard holes - Supports integration with compatible SBR12UU blocks and 400 mm rails