Comprehensive category for specialized bearings that support and guide linear motion. Handles components that move linearly on shafts and guide rails, including linear bushings, linear bearings, slide bushings, and bearing blocks for linear guides. Used in table feed mechanisms of NC machine tools, actuator sections of automation equipment, and assembly line conveyor systems. Features dedicated linear motion design clearly distinguished from rotary bearings. Classified by structure types such as ball type, needle type, and sliding type, and by seal specifications including open type and sealed type, achieving high-precision linear motion and long service life.