Deep groove ball bearing with fault detection and elimination method
The internal clearance of the bearing is too small or the design and manufacturing precision of the machine is not good. It is the main reason for the high operating temperature of the deep groove ball bearing of the extension. It is convenient for the installation of the fan equipment; repair and maintenance. Generally, the design of the sleeve bearing is adopted. The inner ring of the tapered bore is matched with the bearing of the bearing, but it is also easy to cause problems due to the negligence of the installation procedure, especially the proper clearance.
Deep groove ball bearing with fault detection and elimination methods:
(1) Inherent noise:
Rolling sound and various bearing and rolling friction sounds (cylindrical roller bearings) are the inherent sound of rolling bearings. The rolling sound is generated by the elastic characteristics of the rolling elements in contact with the raceway. When the deep groove ball bearings rotate, the rolling a continuous and sophisticated sound that the body rolls on the raceway;
Unusual rolling friction sounds can produce an uncomfortable metal friction abnormal sound such as "squeaky, squeaky", and does not emit such a sound when it is smooth. Therefore, it is not a problem under normal conditions, as long as the noise is increased, it is necessary to pay attention. TIMKEN bearing · deep groove ball bearing with fault detection and elimination method and bearing load properties
(2) Noise related to bearing manufacturing: This includes the bracket noise and vibrato, and the main noise of the rack noise is mainly in the ball bearing and the bearing. When the deep groove ball bearing rotates, the vibration of the bracket and the collision of the bracket and the rolling body occur. Will make a sound.
This kind of sound has periodicity, and the vibrato (various bearings) is a sound with a certain frequency, which is caused by the vibration caused by the large waviness on the raceway surface. This phenomenon is the most common problem, we will later A lot of attention is needed.
(3) Noise caused by improper use: There are various bearings. When the surface of the deep groove ball bearing raceway or the rolling external surface is bumped, crushed, rusted, there will be a certain period of noise and vibration. Contaminant noise occurs when the bearing invades dust during operation. This kind of noise is non-periodic, and it is also accompanied by vibration. The sound size is not fixed, sometimes it is not.
(4) When handling, retract the adapter sleeve and re-adjust the tightness of the shaft to the inner ring. The clearance after replacing the bearing is 0.10 mm. After the reinstallation is completed, the fan is restarted, and the bearing vibration value and operating temperature are restored to normal.
The internal clearance of the bearing is too small. The operating temperature rises rapidly: the inner ring cone of the bearing is too loosely fitted with the adapter sleeve, and the bearing is easily damaged due to the loosening of the mating surface. TIMKEN· deep groove ball bearing with fault detection and elimination method and bearing load properties
As for large bearings, sometimes in order to avoid the difficulty of loading and unloading, there is also a method of using a ferrule clearance to withstand a rotating load. In this case, the shaft should be made of hard material, the surface should be carefully processed, and the lubricant should be added to minimize the damage caused by the slip.
