Introduction Metal linear bearings are linear motion sy […]
Metal linear bearings are linear motion systems that are produced at low cost for use with infinite strokes in conjunction with cylindrical shafts. Since the carrier ball is in point contact with the shaft, the load used is small. The steel ball rotates with a very small frictional resistance, so that high-precision smooth motion can be obtained.
The plastic linear bearing is a self-lubricating linear motion system. The biggest difference between the metal linear bearing is that the metal linear bearing is rolling friction, and the bearing is in point contact with the cylindrical shaft, so this is suitable for low-load high-speed motion; The plastic linear bearing is sliding friction, and the bearing is in surface contact with the cylindrical shaft, so this is suitable for high-load medium-low speed movement.
Linear bearings are used in conjunction with hardened linear drive shafts. A system for infinite linear motion. The load ball and the quenching drive shaft have a small allowable load because of point contact, but the frictional resistance is the smallest, the precision is high, and the movement is quick.