Professional Grade Dang Smooth HGR20 Linear Guide Rail Kit With Two Three Zero Shafts And Four HGH20CA Runner Blocks For DIY CNC Router Build Projects

HGR20 Linear Slide Rail Kit With Gcr15 Steel Guide Shaft
✔️ Pack of 2 rails plus 4 pre drilled slider blocks mounted ready

This complete linear motion kit provides precise sliding tracks and matching carriage units optimized for DIY CNC routers, laser engravers, and automation frames. Includes two solid guide tracks and four sliding carriage units that bolt directly onto standard wood or aluminum extrusion workframes for stable axis building.

✅ Precision ground Gcr15 steel shafts resist wear over long runs
✅ 20mm (0.79in) width and 17.5mm (0.69in) height profile fits
✅ 300mm (11.81in) length offers rough travel per rail mount
✅ M5x16mm (0.63in) threaded screws secure blocks without shift
✅ Sealed bearing design keeps debris out during high speed cuts

💡 How do linear guide rails actually reduce vibration on homemade machines?
The proper selection of tracks prevents wobble during rapid direction changes.
Building a handy rig relies on keeping friction low and alignment tight.
Lock the carriage bolts to remove side to side slack
Match the ball circuit to your expected cutting torque
Anchored plates absorb force before reaching flimsy stands