GIVIMO SBR20 1000-mm Linear Guide Rail Set with Two 39.4-in Carbon Steel Rails and Four SBR20UU Slide Blocks for CNC Router DIY Automation

1000-mm Rail Length: Two 39.4-in (1000-mm) chrome-plated carbon steel SBR20 rails fit benchtop CNC routers, mid-format 3D printers, and short Z-axis automation builds.

882-N Dynamic Load: SBR20UU slide blocks rated to 882-N dynamic load and 1370-N static load per block carry full gantry weight without play during long-axis cuts.

Aluminum Block Ball Bearings: Aluminum slide blocks with built-in steel ball bearings glide on chrome-plated rail surface for low-friction X or Y axis motion.

CNC 3D Printer DIY Use: Drives router/mill/lathe sleds, 3D printer Z-axes, laser engraver gantries, CNC machine slides, and trainer rocker plates on home builds.

Chrome-Plated Rust Resistance: Chrome-plated carbon steel rail resists rust through humid garage workshop service across long-term automation and CNC builds.

Specification: Material: High Carbon Steel & Aluminum; Overall Dimensions: 39.4 x 3.5 x 1.4 in/1000 x 90 x 36.3 mm; Package Size(L x W x H): 43.3 x 5.7 x 3.1 in/1100 x 145 x 80 mm; Dynamic Load (per block): 882 N; Mounting Hole Distance B: 1.4 in/35 mm; Mounting Hole Distance A: 1.4 in/35 mm; Slide Block Size(L x W x H): 2 x 1.9 x 1.5 in/50 x 48 x 39 mm; Static Load (per block): 1370 N; Slide Block Model: SBR20UU; Net Weight: 17.4 lbs/7.9 kg; Guide Rail Length: 39.4 in/1000 mm