General description The Mophorn Linear Guide Rail Set is a premium solution for precision engineering in automated machines and DIY projects. This set includes 2 durable SBR16 guide rails, each measuring 39.4 inches (1000 mm), and 4 SBR16UU slide blocks designed for smooth and quiet operation. Constructed from high carbon steel and aluminum, this guide rail set ensures high precision and wear resistance, making it ideal for various applications such as CNC routers, 3D printers, and laser engravers. Technical specifications Material: High Carbon Steel & Aluminum Slide Block Model: SBR16UU Product Dimensions (L x W x H): 1000 x 90 x 45 mm (39.4 x 3.5 x 1.8 in) Guide Rail Length: 1000 mm (39.4 in) Shaft Diameter: 16 mm (Φ16) Mounting Hole Distance A: 32 mm (1.3 in) Dynamic Load (per block): 774 N Static Load (per block): 1180 N Slide Block Size (L x W x H): 45 x 45 x 33 mm (1.8 x 1.8 x 1.3 in) Net Weight: 5.2 kg (11.5 lbs) Model Number: SBR16-C 1000L Mounting Hole Distance B: 30 mm (1.2