Specification Brand : uxcell BulletPoint1 : Package Included - 2pcs x MGN9H Carriage Block; Material: Bearing Steel; Color: Chrome; Length: 40mm/1.57"; Width: 20mm/0.8"; Height: 8mm/0.3"; BulletPoint2 : Quality Material - Made of Bearing steel, high toughness, rust resistance, corrosion resistance, and longer service life. With automatic centering function, it can achieve accurate positioning at μm level. BulletPoint3 : Smooth and Quiet - This linear motion rail bearing block is in high speed, has low wear and low noise, also smooth sliding without sticking. Designed to achieve high-precision linear motion, with a low friction coefficient. BulletPoint4 : Easy To Install - Apply lubricant to the rail and slider again before installation. Help reduce friction and ensure smooth operation of the sliding mechanism. Not to remove the block unless it is necessary during the installation.Not to switch the blocks of the rail arbitrarily when installing the rail. To maintain the efficiency and longevity of the rail system, the rail should be regularly lubrication. Lubrication helps prevent burns and minimize wear. BulletPoint5 : Wide Application - The linear guide rail is widely used in automatic equipment, such as DIY CNC routers, lathes, CR10 series 3D printers, machine tools, laser welding machines, etc.Also applicable for large-scale transmission equipment, including industrial robots, and cracker machines. ItemForm : Rod ItemName : uxcell MGN9H Bearing Steel Carriage Block for 9mm Linear Motion Slide Rail Guide, 2PCS Chrome ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 3.54 inches ItemPackageDimensions_Width : 2.36 inches ItemPackageQuantity : 2 ItemTypeKeyword : linear-motion-guides Manufacturer : uxcell Material : Alloy Steel PartNumber : a23090900ux0548 ProductDescription : Advantage: Made of Bearing steel, high toughness, rust resistance, corrosion resistance, and longer service life. This linear motion rail bearing block is in high speed, has low wear and low noise, also smooth sliding without sticking. Widely used in automatic equipment, such as DIY CNC routers, lathes, machine tools, laser welding machines, etc. Also applicable for large-scale transmission equipment, including industrial robots, and cracker machines.