Introduction To Linear Bearings

Linear bearings are rolling or sliding bearings used for linear motion. They feature low friction, reliable structure, strong load capacity, high long-distance precision, and long service life. They are commonly used in various industrial machinery and equipment, such as machine tools, punch presses, and printers. The suspension frame of medium- and low-speed maglev vehicles is assembled from multiple modules with the same basic structure. When a maglev train negotiates a curve, the suspension frame modules conform to the line's contours, resulting in different lateral displacements relative to the vehicle body for modules at different positions, with end modules experiencing lateral displacements exceeding 300mm. Given that the air springs commonly used on rolling stock are insufficient to provide such large displacements, linear bearings with large-displacement technology are installed between the vehicle body and the suspension frame to meet the curve requirements of medium- and low-speed maglev vehicles.