Linear Rail SBR20 200mm 2PCS Fully Supported Linear Rail Shaft Rod with 4PCS SBR20UU Blocks Bearing for Automated Machines DIY CNC Routers Lathes Mills

Linear bearing is a low-cost production of linear motion system for unlimited travel in conjunction with the cylinder axis. Because of point contact between ball and straight axis, so the load is small. The ball is spinning with the smallest friction, it can run a high precision and smooth motion. Flange linear bearings can be divided into: round flange type, oval flange, guide wheel flange, guide the oval flange type, plus long round flange type.This is the sliding unit with the aluminium case, shafts and aluminium rail for preventing deflexion. This is the complete sliding unit systems and can be clamped simply tightening by bolt with high accuracy. The support rail unit provides maximum rigidity and stiffness to the shaft throughout the whole stroke, and ensure the performance of the unit.The shaft is case hardened. If you use normal steel shafts, the bearings will cut them up in no time. So make sure what you buy is case hardened!Package Including2 X SBR20 200mm FULLY SUPPORTED LINEAR RAIL4 X SBR20UU Motion Router Solide Block Bearing16 X Screws1 X Handles1 X Wrenches

• LINEAR RAIL KITS: 2 Pieces rail shafts SBR20 200mm,4 Pieces SBR20UU blocks,16 Pieces Screws,1 piece Handles,1 piece Wrenches
• EASY TO INSTALL: Aluminum support rail with pre-drilled holes for ease of mounting.Suits X, Y, Z axis.Premier Linear Guiding System.The support rail unit provides maximum rigidity and stiffness to the shaft throughout the whole stroke, and ensure the performance of the unit.
• HIGH-QUALITY STEEL MATERIAL: CNC parts linear rails are made of carbon steel, linear bearings are made of quality bearing steel with aluminum alloy housing. Surface chrome plating treatment makes it anti-rust, durable, and extremely hard.
• PREMIER LINEAR GUIDING SYSTEM-Perfect combination of the main axle bearing rail and aluminum alloy support, which nicely stabilizes the original rail. Industrial-grade standard SBR block, with a high precision linear bearing inside.
• WIDELY USED: It is widely used in linear motion system. Such as, punch, tool grinding machine, automatic cutting machine, printer, card sorting machine, food packing machine, other sliding parts on industrial machinery.