What causes damage to the bearing of the wood pellet machine roller group. During the pellet production process, some users found that the pellet machine roller group stopped rotating and had a high temperature of heating. After inspection by the maintenance master, it was found that the wood chips were caused by damage to the bearing of the pellet machine roller group. Regarding the problem of damage to the roller group bearing, many people don’t know when the roller group bearing was broken, and what exactly causes the roller group bearing of the wood pellet machine to be damaged?

        1. Foreign material pollution

        The working environment of the pellet machine is full of dust. When some fine dust enters the bearing seat that runs at high speed, corrosive particles may wear the parts, conductive particles may interfere with the component current, and once the particles accumulate and block the bearing periphery, overheating will accelerate. Unpack the bearing too early before use, the working environment is not clean during installation, the working environment of the bearing is not clean, the working environment of the bearing, and the working medium contamination will cause bearing pollution.

        2. Poor lubrication

        Poor lubrication is one of the main reasons for bearing damage. The main reasons include: failure to add grease in time or not in place, improper grease selection, incorrect lubrication method, etc., resulting in oil deficiency and burning of bearings.

        3. Improper installation

        When installing, using brute force, directly hitting the bearing with a hammer will cause the most damage to the bearing, which is the main reason for deformation. If the installation is not in place, the installation is biased or not installed in the bearing position, the bearing clearance is too small, the inner and outer rings are not in the same rotation center, resulting in different centers.

        4. Fatigue damage

        Fatigue damage is a common damage to bearings. The main reasons are long-term overload operation, failure to repair in time, and aging of equipment parts. In addition, if the ring die is difficult to discharge, block the die and block the machine, the temperature in the ring die will rise quickly, and the fuselage will vibrate, causing the pressure roller bearing and spindle bearing to burn out.

        5. Improper selection or poor quality

        The mating between the inner diameter of the bearing and the shaft and the outer diameter of the bearing is very important. When the mating is too loose, the mating surface will cause relative sliding. Once creep occurs, it will wear the mating surface, damage the shaft or shell, and wear powder will invade the inside of the bearing, causing heat,

        The ring mold of the pellet machine roller group vibrates or the bearing breaks. When selecting bearings, qualified high-quality products from regular manufacturers should be used, and pay attention to the ultimate speed and load capacity of the bearing, and cannot be used overspeed or overload.