2 Pack 20mm Chrome Plated Linear Rails 39.37in 1000mm Kit With 4 SK20 Fixed Shaft Supports And 4 SCS20UU Pillar Block Bearings For 3D Printer DIY CNC Projects And Precise Motion
✔️ Includes 2x 1000mm rails, 4x SK20, 4x SCS20UU blocks
This kit provides two 1000mm chrome-plated 20mm rails with four fixed SK20 shaft supports and four SCS20UU pillar block bearings. It’s designed to deliver precise linear motion in CNC machines, 3D printers, engraving, and automation projects.
✅ 2 x 20mm x 1000mm chrome plated linear rails (C45# carbon steel, hardness 58-64 HRC; chrome 15-20 micron) ✅ 4 x SK20 fixed shaft supports with aluminum housing for stable mounting ✅ 4 x SCS20UU pillar block bearings with high-precision linear bearings ✅ Surface finish Ra 0.8, straightness below 5 micron/100 mm ✅ Compatible with CNC machines, 3D printers, engraving machines, and automation setups ✅ Customizable length and end processing options on request
💡 What is a pillow block bearing used for in CNC setups?
They help keep shafts aligned and moving smoothly in motion systems.
- Supports rotating shafts to maintain precise alignment - Reduces shaft wobble and wear in CNC machines, 3D printers, and engraving devices - Works with linear rails and bearing blocks to stabilize motion - Provides flexible mounting options for different frame designs ✝️