Linear Rail Kit, 1000 mm Rails, 4 Bearing Blocks

Linear rail kit delivers smooth, stable motion for CNC, engraving, lathe, and milling builds, helping reduce play and improve positioning accuracy over long travel. This 1000 mm (39.4 in) linear motion guide rail set includes corrosion-resistant, high-hardness steel shafts and low-noise ball-bearing slide blocks designed to glide with low friction while holding tight for consistent linear travel. Ideal for DIY machine upgrades, training rocker plates, and rail replacements where repeatability matters.

• Includes 2 × 1000 mm (39.4 in) rails and 4 × SC25 bearing slide blocks for complete linear motion setup


• Delivers quiet, low-friction travel with ball-bearing blocks that grip the shaft tightly for stable movement


• Resists rust with >10 μm electroplated coating plus aluminum alloy blocks/supports for humid shops or basements


• Improves alignment with 0.1–0.22 μm surface finish and 5 mΩ/100 mm straightness for repeatable positioning


• Fits DIY engraving machines, CNC machine tools, lathes, milling slides, and training rocker plate builds

Upgrade worn rails or build a new linear slide system with components chosen for precision, load handling, and smoother travel. High carbon steel shafts (HRC58–62) support stable movement, while the SC25 slide blocks help reduce chatter and uneven motion that can affect cuts, engraving lines, or feed consistency. With accurate hole spacing for straightforward mounting, this set is ready for workshop projects and machine retrofits. Grab yours today and get your motion system running cleaner and more consistently.

• Rail length: 1000 mm / 39.4 in (2 rails)


• Slide blocks: SC25 (4 blocks)


• Shaft diameter: Ø 25 mm / 0.98 in


• Material: High carbon steel shafts + aluminum alloy blocks/supports


• Hardness (shafts): HRC58–62


• Surface finish: 0.1–0.22 μm


• Straightness: 5 mΩ/100 mm


• Static load capacity: 1570 CN / 93 kg


• Dynamic load capacity: 980 CN / 67 kg


• Coating thickness: >10 μm electroplated layer