1. Roller linear guide rail: a guide rail with a cylinder as the carrier.
2. Ball linear guide rail: a guide rail with a ball as the carrier.
Second, the use is different.
1. Roller linear guide rail: mainly used for automation machinery, such as machine tools, bending machines and laser welding machines imported from Germany. Linear bearing is used with a straight axis.
2. Ball linear guide rail: mainly used in mechanical structures with high precision requirements. Rolling steel balls are used to replace the intermediate medium between the moving element and the fixed element of the linear guide rail.
Third, the principle is different.
1. Roller linear guide rail: the final unit design between the slider and the guide rail makes the linear guide rail bear loads in all directions at the same time. Patented reflux system and simplified structural design make HIWIN's linear guide rail move more smoothly and with low noise.
2. Ball linear guide rail: The steel ball rolls circularly between the slider and the guide rail, so that the loading platform can easily perform high-precision linear motion along the guide rail, and the friction coefficient can be reduced to one fiftieth of that of the ordinary traditional sliding guide rail, thus easily achieving high positioning accuracy.
Baidu encyclopedia-linear guide rail