2pcs SBR20 1000mm Linear Slide Rail Shaft 4pcs SBR20UU Baring Slide Block

Features: 1. Chrome plating linear shaft, high hardness, lasting to use. 2. Standardized processing aluminum alloy sliding block, with strong interchangeability. 3. Built in high precision linear bearings allows the slide block to move smoothly with little resistance. 4. Oxidation surface treatment makes the sliding block beautiful, rustproof and more durable. 5. The linear slide rail has pre drilled holes for easy mounting. Specification: Material: High carbon steel + aluminum alloy Slide rail width: 45mm 1.77in Rated dynamic load: 860 Rated dead load: 1370 Accuracy grade: H Fixing bolt size: 8mm Allowable static moment: 1kN.m Weight: 5.2kg (approx.) Package List: 2 * Linear Rail Shaft 4 * Slide Block .