1This linear rail and block are small in size and lightweight, especially suitable for small equipment. 2Adopting 4point contact design, it can bear load from every direction, and has good strength and high accuracy. 3Designed with ball retainer, which allows interchangeability in the case of small accuracy. 4Block has lubrication system; lubrication oil can be easily put into the oil inlet on the side. 5Widely used for automatic equipment, accuracy measuring equipment, and many other machines that need accuracy linear movement.