The linear bushing is a linear motion product that is used in combination with a cylindrical LM shaft. The ball bearings in the load area offer point contact with the LM shaft. This allows straight motion with minimal friction resistance and therefore smooth motion High-carbon chromium bearing steel is used for the nut, and the outer and inner surfaces are ground and heat -threated. Linear Bushings are used for medical equipment, packing equipment, and lightweight equipment that is not subject to vibration, shock, etc.. However, they cannot be used for applications in which loads are applied in a rotational direction