General description The Mophorn Linear Guide Rail Set is designed for precision and durability, featuring 2 guide rails and 4 slide blocks. Crafted from durable aluminum, the guide rails provide precise hole spacing, while the SBR slide blocks with ball bearings ensure smooth and quiet operation. This set is available in various sizes to accommodate different applications, providing reliable, high-precision support. Technical specifications Guide Rail Length: 1500 mm (59 in) Slide Block Model: SBR20UU Shaft Diameter: Φ20 mm Dynamic Load (per block): 882 N Static Load (per block): 1370 N Material: High Carbon Steel & Aluminum Slide Block Size (L x W x H): 50 x 48 x 39 mm (2 x 1.9 x 1.5 in) Product Dimensions (L x W x H): 1500 x 90 x 36.3 mm (59 x 3.5 x 1.4 in) Package Size (L x W x H): 1580 x 145 x 80 mm (62.2 x 5.7 x 3.1 in) Net Weight: 10 kg (22 lbs) Mounting Hole Distance A: 35 mm (1.4 in) Mounting Hole Distance B: 35 mm (1.4 in) Package Content 4 x SBR20UU Sliding Blocks 2 x SBR20