The linear axis is a linear motion system produced at low cost, used in conjunction with a cylindrical axis with an infinite stroke. Since the bearing ball is in point contact with the shaft, the use load is small. The steel ball rotates with minimal frictional resistance, so that high-precision and smooth motion can be obtained.
Linear axes are widely used in electronic equipment, tensile testing machines and digital three-dimensional coordinate measuring equipment and other precision equipment, as well as the sliding of industrial machinery such as multi-axis machine tools, punches, tool grinders, automatic gas cutting machines, printers, card sorting machines, food packaging machines, etc. part.
The linear slide and the linear axis are basically two product accessories from the top. The linear slide is an accessory that transmits motion. The reciprocating linear motion from a specified point to the next point is a guide rail. The appearance of the linear axis is obviously different from the outside of the linear slide. The linear axis runs in a cylindrical barrel shape and relies on the linear optical axis. From the equipment point of view: linear slides have higher accuracy, greater load and stronger stability than linear axes. Relatively speaking, linear axes are only suitable for preliminary processing.
Linear shafts are used in conjunction with linear bearings and cylindrical shafts. Since the bearing ball is in point contact with the bearing jacket, the steel ball rolls with a small frictional resistance, so the linear optical axis has low friction, is relatively stable, does not change with the bearing speed, and can achieve smooth linear motion with high sensitivity and high accuracy.
The consumption of the linear axis also has its limitations. The main reason is that the linear bearing has poor impact load capacity and poor carrying capacity; secondly, the linear axis has high vibration and noise during high-speed motion, which need to be overcome.