What are the advantages of plastic linear bearings?

Plastic linear bearings are a linear motion system with self-lubricating characteristics. The biggest difference between them and metal linear bearings is that metal linear bearings are rolling friction, and there is point contact between the bearing and the cylindrical shaft, so this type is suitable for low-load high-speed motion;
Plastic linear bearings are sliding friction, and there is surface contact between the bearing and the cylindrical shaft, so this type is suitable for high-load medium and low-speed motion.
Linear bearings are used in conjunction with hardened linear transmission shafts. A system for infinite linear motion. Because the load ball and the hardened transmission shaft are point contact, the allowable load is small, but during linear motion, the friction resistance is extremely small, the precision is high, and the motion is fast.
There are no special requirements for plastic linear bearings to match the shaft; they can withstand greater loads than metal bearings, but because the motion between the bearing and the shaft is sliding friction, the motion speed of plastic linear bearings is subject to certain restrictions;
The motion resistance is greater than that of metal linear bearings; but its motion noise is lower than that of metal linear bearings, especially in the case of medium and high speeds, the noise of plastic linear bearings is very little affected by speed.
Plastic linear bearings can be used in dusty places because of the chip removal groove design inside. Dust is automatically removed from the friction surface of the bearing body from the chip removal groove during movement. Plastic linear bearings can also be cleaned during use. The internal sliding film made of special materials can even be used for long-term operation in liquids.
Plastic linear bearings are a linear motion system with self-lubricating characteristics. The biggest difference between them and metal linear bearings is that metal linear bearings are rolling friction, and there is point contact between the bearing and the cylindrical shaft, so this type is suitable for low-load high-speed motion;
Plastic linear bearings are sliding friction, and there is surface contact between the bearing and the cylindrical shaft, so this type is suitable for high-load medium and low-speed motion.
Linear bearings are used in conjunction with hardened linear transmission shafts. A system for infinite linear motion. Because the load ball and the hardened transmission shaft are point contact, the allowable load is small, but during linear motion, the friction resistance is extremely small, the precision is high, and the motion is fast.
There are no special requirements for plastic linear bearings to match the shaft; they can withstand greater loads than metal bearings, but because the motion between the bearing and the shaft is sliding friction, the motion speed of plastic linear bearings is subject to certain restrictions;
The motion resistance is greater than that of metal linear bearings; but its motion noise is lower than that of metal linear bearings, especially in the case of medium and high speeds, the noise of plastic linear bearings is very little affected by speed.
Plastic linear bearings can be used in dusty places because of the chip removal groove design inside. Dust is automatically removed from the friction surface of the bearing body from the chip removal groove during movement. Plastic linear bearings can also be cleaned during use. The internal sliding film made of special materials can even be used for long-term operation in liquids.