Linear Guide Rail Kit 20mm x 1000mm, 2 Rails 4 Blocks

Linear guide rail set delivers smooth, accurate linear motion to improve precision and reduce binding in CNC and automation builds. This 1000 mm rail kit pairs carbon-steel shafts with sealed SC20 slide blocks and ball bearings for low-friction travel under load. Designed for repeatable movement, it helps stabilize router, mill, lathe sleds, 3D printers, and laser engravers while keeping installation straightforward with pre-spaced mounting holes.

• Includes 2 x 1000 mm (39.4 in) SFC20 shafts, 4 x SC20 slide blocks, and 4 x rail supports for a complete linear motion upgrade


• Delivers smooth, low-noise sliding with sealed aluminum blocks and internal ball bearings to reduce friction and stutter


• Handles high loads with up to 882 N dynamic and 1370 N static capacity per block for stable automated machine movement


• Improves accuracy with precise shaft straightness and consistent travel for repeatability in CNC and DIY linear rail systems


• Simplifies mounting with 40 mm hole spacing and rigid aluminum base for quick alignment and secure fastening

Built for workshop and production environments, this linear shaft and bearing kit combines a chrome-plated surface with corrosion-resistant materials to support long service life. Use it to upgrade or build linear motion stages for CNC machines, laser engravers, 3D printer assemblies, router tables, or custom automation rigs where smooth travel and dependable alignment matter. Stock for builds moves fast—grab yours today and get your next motion project running cleaner and more precise.

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


• Shaft diameter: 20 mm


• Slide blocks: SC20, 4 pcs; size 50 x 54 x 41 mm (2 x 2.1 x 1.6 in)


• Rail supports: 4 pcs


• Dynamic load (per block): 882 N


• Static load (per block): 1370 N


• Mounting hole distance A/B: 40 mm / 1.6 in


• Materials: high carbon steel & aluminum; chrome-plated surface


• Product dimensions (L x W x H): 1000 x 120 x 51 mm (39.4 x 4.7 x 2 in)


• Net weight: 3.3 kg / 7.3 lb