VEVOR Linear Motion Set, SBR20 2200mm, Comes with Two 86.6-inch SBR20 Rails & Four SBR20UU Blocks, Ideal for DIY CNC & Automated ProjectsHandle Pressure with EaseSmooth Sliding without StutterMore Accurate Than EverBroad Usage ScenariosStrong Corrosion ResistanceInstallation Made EasyShaft Diameter: Φ20 mm,Material: High Carbon Steel & Aluminum,Model Number: SBR20-C 2200L,Product Dimensions(L x W x H): 86.6 x 3.8 x 2 in/2200 x 96 x 50 mm,Package Size(L x W x H): 89.6 x 5.7 x 3.1 in/2275 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: 32.8 lbs/14.9 kg,Guide Rail Length: 86.6 in/2200 mm