20mm CNC Router Rails 30 Inch Long Shaft With Block And Bearing Linear Motion System Chrome Plated 20mm Diameter Shaft Aluminum Slide Unit With Two Preinstalled LME20UU Bearings Slide Size Approximately 3.75 x 2 x 1.5 Inches

20mm CNC Router Rails with 30-Inch Shaft, Block & Bearings
✔️ 30 in long chrome-plated 20 mm shaft with 2 preinstalled bearings

This high-precision linear motion kit uses a 20 mm diameter chrome-plated shaft paired with an aluminum slide unit. The 30-inch length is ideal for CNC routers and milling tables, delivering smooth, straight travel and repeatable positioning for accurate cuts and engravings.

✅ 20 mm diameter shaft, chrome-plated for corrosion resistance
✅ 30 inch length (762 mm) for long-stroke applications
✅ Aluminum slide unit with two pre-installed LME20UU bearings
✅ One kit includes rail, block, and bearings ready for mounting
✅ Precision linear motion system designed for CNC router projects

💡 What is a 20 mm linear guide rail with a block and bearings used for in CNC machines? This handy guide explains common uses and benefits.
- Used for precise, low-friction motion in CNC routers, mills, and automation projects
- Helps maintain accurate tool alignment over long travel
- Ideal for retrofit or new builds requiring smooth linear motion
- Supports sealed ball bearing options for long-lasting performance