Joint bearing heating device

Joint bearing additional sealing device can effectively protect bearings in the outside dirt intrusion under the favorable conditions of work, but this kind of additional sealing device will increase the mechanical mechanism of axial size, the use of bearing and inconvenient installation, at the same time, the additional sealing performance of the sealing device is often shaft neck and match the shell parts of the processing precision and the influence of the shape tolerance, so the structure is compact, and strict sealing parts. Heating methods are: 1. Electric hot plate bearing heating method be placed on the electric hot plate temperature of 100 ℃ for a few minutes, this method is most convenient, such as reverse it a few times can make the bearing heated evenly, and the efficiency is high, the size of joint bearing can use this method. 2. Electric furnace heating method to the bearing in the automatic temperature control of the closed electric furnace heating, uniform heating, accurate temperature control, heat fast, suitable for the occasion of a batch of heating a lot of bearing. 3. Induction heating method using induction heater can be fast, reliable and clean will be heated to the required temperature joint bearing, which are particularly suitable for the inner ring of the tight fit, just because of the heated inner ring, and the outer heat is small, so can be a drag on the shaft, also easily into a hole. 4. Light bulb light bulb heating method using 50 w heat joint bearing, can guarantee the heating temperature about 100 ℃, the smaller the bearing can be directly on the bulb, larger bearings taper enclosure may be placed on a light bulb, conical cover can prevent heat losses, light bulbs and uniform heating cone cover can be adjusted up and down, in a certain heating range that can adapt to different size of bearing using infrared light bulb, pay attention to the light bulb direction should be down, in order to avoid this kind of bulb of infrared radiation is bad for the eyes can be energy-saving bulb heating method is suitable for small and often do not need; To the bearing heating, light bulbs still can make lighting at ordinary times, moreover does not need any other equipment. 5. Oil tank heating method which is widely used traditional heating method, the bottom of the tank from 50 to 70 mm in a metal mesh, bearing on the Internet, large bearing to hoist hooks in the bearing should not be placed directly on the bottom of the channel, in case of contact with the bottom of the channel bearing parts of the local heat is too high, or the bottom of the channel deposition of dirt into the bearing oil tank heating method of key points are as follows, no corrosive thermal stability good mineral oil should be used, it is best to transformer oil, the oil and the capacity of the container should be kept clean oil tank should be with the size of the heated joint bearing and oil amount, if the container is too small, in continuous operation, one into the bearing oil temperature will drop quickly, the effect is bad. Axis of tolerance and selection of TIMKEN bearing chamber and control: after bearing rotating pressure block no flexibility. If significant rotation is not flexible, so the size of the shaft is too big, and tolerance. Such as TIMKEN bearing pressed into obvious 'sasha vujacic' after hand steering shaft in a certain sense, it may be too much of circular shaft or tolerance of shaft is not good. A good shaft is controlled and bearing tolerance, so also should control the roundness. TIMKEN bearing assembly mode: because of the bearing is high precision products, such as improper assembly, channel bearing, which are easily damaged, result in bearing damage. TIMKEN bearing in the assembly, there should be a special mould, can't beat, push the axial force is only a small circle, only when the press stress circle. Congress requires the use of pneumatic or hydraulic pressure, when pressure to lower die, a national level, if the channel slope will result in bearing damage, due to power, leave production bearing TIMKEN guide ring. Assembly to prevent foreign body: bearing installed within the rotor dynamic balancing is easy to produce iron bearing before the installation of dynamic balance, so it's best to do dynamic balance. TIMKEN bearings in the conference room to put some oil or grease lubrication, but operators are often difficult to control, if oil or grease in the bearing plot to stay indoors, easily along the axis of rotation to the TIMKEN bearings inside. Bearing room had better not apply oil or grease, such as the coating control, can not have conspiracy TIMKEN bearings, to stay indoors. Paint rust rust prevention, the characteristic is in a sealed motor, the assembly of multiple motors sounds good, but in the warehouse for a period of time, motor become very abnormal sound, remove import bearing serious rust. Many manufacturers will be deemed to be the front bearing, the main electrical appliance factory have realized the problem of the varnish. The main problem is that the insulating paint volatile acid in a certain temperature, the humidity of metal corrosion and protection, the formation of corrosive substances, channel TIMKEN bearing corrosion damage. Now the only problem is to choose a good varnish, air drying after assembly for a period of time. TIMKEN bearing life is manufacturing, assembly, closely related to the use, must make every link, in order to make the country works the best bearing, so as to prolong the service life of TIMKEN bearings.