SBR20 Linear Rail Kit with 2pcs 2000mm Rails & 4pcs SBR20UU Square Blocks, 20mm Supported Linear Guide System Made from Bearing Steel & Aluminum for CNC Routers, Automated Machines & DIY Projects

20mm SBR Linear Rail Kit with Supported Rails for CNC and Automation
✔️ SBR20 Linear Slide System with 2000mm Rails and 4 Bearing Blocks

This supported linear rail kit is built for automated machines, DIY CNC routers, and large motion systems that need stable travel over long distances. The setup combines hardened steel rails with aluminum support and precision square bearing blocks, making it a handy choice for smooth motion and solid positioning. Pack size includes two rails and four matching bearing blocks.

✅ Pack size: 2 linear rails and 4 square bearing blocks
✅ Rail type: SBR20 supported linear rail system
✅ Rail diameter: 20mm 0.79 inch
✅ Rail length: 2000mm 78.7 inch
✅ Bearing blocks: SBR20UU square type linear blocks
✅ Material: bearing steel rail with aluminum alloy support base
✅ Surface finish: chrome plated for corrosion and wear resistance
✅ Smooth travel with low operating noise
✅ Adjustable bearing block preload for accurate alignment
✅ Includes M6 mounting screws for installation
✅ Suitable for CNC routers, lathes, machine tools, robots, and automation frames

Dimensions
Rail Diameter 20mm 0.79 inch
Rail Length 2000mm 78.7 inch

Included Components
Linear Rails 2 pcs
Bearing Blocks 4 pcs

💡 What are supported SBR linear rails used for in long travel CNC and automation systems?
Supported linear rail systems are designed to handle long spans while keeping motion stable and accurate.

• Aluminum supported rails reduce shaft deflection and maintain straight travel over long distances

• Square linear bearing blocks provide smooth motion and consistent positioning under load

• SBR linear rail kits are widely used in CNC routers, automation equipment, and industrial motion setups

This linear rail kit is a solid pick when you need long travel capability, steady movement, and reliable performance for larger CNC or automated machine builds.