久久国产美女精品久久|少妇AV一区二区三区无码|少妇被又大又粗又爽毛片久久黑人|超碰97人人做人人爱亚洲

Linacent? The engineering plastic linear bearing is a self-lubricating linear motion system. The difference between it and the metal linear bearing is that the metal linear bearing is rolling friction, and the point contact between the bearing and the cylindrical shaft is suitable for low-load high-speed movement; The bearing is sliding friction, and the bearing is in surface contact with the cylindrical shaft, which is suitable for high-speed medium-low speed movement.


The advantages of plastic linear bearings are: no ball, corrosion resistance, dust resistance, abrasion resistance, waterproof, no lubrication, light weight, low noise, no magnetism, insulation, etc.


Characteristic Is

All plastic structure

Convenient maintenance

Can be used in places with large liquid and dust





久久国产美女精品久久|少妇AV一区二区三区无码|少妇被又大又粗又爽毛片久久黑人|超碰97人人做人人爱亚洲