40mm Linear Motion Ball Slide Guide Shaft Bearing Unit Set, 2 Pieces For Precise CNC, DIY Robotics, Smooth Sliding Rail With 40 Millimeter Travel, Tough Metal Construction, High Precision Hardware

High-Precision 40mm Linear Ball Slide Unit for CNC & DIY
✔️ 2 x SHF40, 40mm travel, metal construction, 10x6.5x4 cm, 534 g

Two-piece SHF40 linear motion ball slide units deliver precise, smooth sliding guidance for CNC machines, DIY robotics, and automation projects. Built from durable metal, they resist wear in workshop environments.

✅ Shaft diameter: 40 mm / 1.6 in
✅ Travel: 40 mm / 1.57 in
✅ Screw hole dia: 8 mm / 0.31 in
✅ Side hole dia: 11 mm / 0.43 in
✅ Hole spacing: 80 mm / 3.15 in
✅ Overall size: 100 x 65 x 40 mm / 3.94 x 2.56 x 1.57 in
✅ Material: metal
✅ Pack contents: 2 x Linear Motion Ball Slide Unit

💡 What is a 40mm linear motion ball slide unit used for in CNC machines and robotics?

Used for precise, straight-line guidance in compact automation setups.

- precise linear guidance for CNC and DIY robotics projects. - 40 mm travel with metal construction for durability. - mounting with 8 mm screw holes and 80 mm spacing. - shipped as a 2-piece set to extend axis length. ✝️