Although the functions of the linear optical axis and the linear guide are similar, they are both supporting and guiding, but there are still some differences between them, mainly in the installation location and shape. From the shape point of view, the linear optical axis is circular; while the linear guide is generally square and has a fixed installation of the slider on it. Precision shaft

From the installation point of view, the linear optical axis is generally fixed at both ends, and the suspended connecting part in the middle covers all or most of the radial direction of the optical axis; but the linear guide rail is generally close to the equipment installation base on one side and fixed by bolts. of.

After reasonable cooperation, the linear bearing embodies the characteristics of light weight, corrosion resistance, interchangeability, and low cost. It is widely used in various machine equipment, and can achieve the greatest economic benefits of labor saving and automation. Straight lines will be used in precision equipment or special machinery industries such as electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, instruments, robots, tool machinery, CNC machine tools, automobiles, and digital three-dimensional coordinate measuring equipment. Bearing.

In order to meet the needs of these different applications, the linear bearing specifications are also diverse, basically covering the LM and LME, LIN-11, LIN-12, and KH series. Among them, the LM series takes the metric size as the standard, and the linear shaft is equipped. The outer diameter tolerance is generally h7; while the LME series uses inch sizes as the standard, and there are also metric sizes. The outer diameter tolerance of the linear shaft is generally g6.

The LIN-11 linear bearing is a European standard plastic linear bearing, which is installed with a circlip limit; and the LIN-12 series is a narrow design, and its outer diameter is directly installed in a tight fit with the mounting seat hole, mainly for saving Installation space.