The bearing damage and failure formation
Bronze Bearings damage and failure of the formation of a major oil loss, fatigue damage, impurity entry and protection of permanent damage caused by deformation.
In the routine inspection work:
① Look - the height of the oil level, check the refueling record time, oil, grease and the amount of oil per unit bearing oil model specifications are correct.
② Listening - using the needle tool for equipment in the operation of whether there is jam phenomenon, whether the noise, the operation is stable.
③ touch - temperature measurement can be used temperature, can also be hand touch bearing shell temperature, whether the controllable range of technical specifications within the numerical requirements.
The flanged bearings inspection methods to prevent damage
We work in the daily inspection, the use of hearing, touch, look at the inspection methods, know how to use the bearings in the production process of operation and maintenance of common sense. Sliding bearing is mainly used in high-speed operation, low-speed heavy equipment, such as: turbine generator, rotary kiln wheel group, coal mill, cement mill, large motor, its nature is sliding friction, lubrication of these devices The way of using water-cooled oil station, oil circulation between the shaft and the bearing pad to produce a layer of isolated oil film, which play a role in lubrication, while the friction generated by the bearing heat reduction.
Rolling bearings are mainly used in small motors, reducer, drive shaft, roller and other equipment, it is the nature of rolling friction, rolling bearing lubrication can be grease, lubricating oil or solid lubricant. Rolling bearings in the gap (ie, oil gap) role is to ensure the normal operation of the rolling body, lubrication, and as compensation for the amount of thermal expansion. The purpose of the bearing seal is to prevent dust. Moisture, etc. into the bearing, and to prevent the loss of lubricating oil. Bearing and shaft assembly before measuring the outer diameter of the shaft size and bearing diameter size, to avoid too tight too loose phenomenon, too tight assembly easy to make the gap gap is too small, bearing temperature rise; too loose assembly, bearing run sets Or jacket, resulting in shaft and bearing damage. When assembling the flange bearing, it is strictly forbidden to use the hand hammer to directly knock, and the method of copper bar or sleeve transition can be used.