The bearings in paper tube machinery sometimes make some abnormal noises. What is the reason? We summarized the following:
        Grease has impurities; insufficient lubrication, too low oil level, improper storage causes oil or grease to leak through the seal; paper tube machine bearings are mixed with impurities such as sand or carbon particles to act as abrasives; water, acids Dirt or paint can cause corrosion; the bearing is pinched by the seat hole, the roundness of the seat hole is not good, or the seat hole is distorted; the horn on the bottom surface of the bearing seat is uneven, causing the seat hole to deform or even the bearing seat crack.
        There are debris in the bearing seat hole of the paper tube machine, and chips and dust particles remain. The sealing ring is eccentric, and it touches adjacent parts and causes friction. Two fixed-end bearings; the fit between the bearing and the shaft is too loose, the shaft diameter is too small or the tension sleeve is not locked; the bearing clearance is too small, the paper tube machine is too tight when rotating, and the adapter sleeve is over-tightened The bearing is noisy, caused by the roller's end face or steel ball slipping; the shaft's thermal elongation is too large, the bearing is subject to the axial additional load of the fixed seat; the shaft shoulder is too large, and it encounters the bearing's seal and friction occurs.

        The shoulder of the seat hole is too large, and the seal sent by the bearing is distorted; the teeth of the lock washer are bent, and the bearing comes into contact with the friction; the position of the oil ring is not suitable, and the flange cover is brought into friction; steel Balls or rollers have pressure pits, which are caused by hammering the bearings during installation; bearings are noisy and interfere with external vibration sources; the bearings are discolored and deformed by heat; the bearings are disassembled by heating with a spray gun; the shaft is too thick and the actual fit is too tight The diameter of the bearing seat hole is too large, and the actual fit is too loose; the cage is broken; the bearing raceway is rusty, which are all the reasons that can cause the abnormal noise of the paper tube machine bearing.