Features Smoother Sliding: The slider adopts a steel wire holder structure to effectively prevent the steel balls from falling off, and the accurate steel ball rows is very stable with small friction, also very durable. High in Accuracy: The linear guide rail is interchangeable, and the slider or guide rail, or even the linear guide rail group, can be replaced separately to obtain high accuracy guidance again. Fully sealing system, smooth sliding without jamming, high p Wide Application: Widely used in wind power generation, solar energy equipment, new energy equipment, high speed railway equipment, electronic equipment, etc. Good Bearing Steel: Made of premium bearing steel, it can bear high loads. With automatic centering function, it can achieve accurate positioning at μm level. Quick Installation: Comes with a compact size and a light weight as well, the carriage block is very convenient to install in minutes. Specification: Item Type: Carriage Block Model: MGN12H Material: Bearing Steel Use: The product is widely used in various industrial fields such as machine tools, construction machinery, robots, speed reducers, steel, metallurgy, textiles, mining, printing, aerospace, and so on.  Package List:1 x Carriage Block Package List 1 x Carriage Block