Spherical roller bearings installed heating method

Spherical roller bearings installed heating method need ability to size, speed, and other conditions set reasonable use of spherical roller bearing pre-tightening force, to ensure that the transmission way of life. If the pre-tightening force is too large, power consumption, and even lead to overheating. If the pre-tightening force is too small, body load, axial rolling, outer ring, under the action of the gap between the beating, run, transmission precision, in order to reduce the noise increased, affect the gear mesh, serious damage, the teeth and bearings. According to different self-aligning roller bearing assembly, such as: directly by the axial compression internal bearing inner ring of the bearing nut rotation, inside and outside the ring, in order to eliminate the gap and achieve the goal of bearing preloaded force. Achieve common use: first, far more than the pre-loaded bearing, the end of the nut, and then back to 1/4 circle. Assembly method, this method has the advantage of less investment, simple, practical, consistent quality under the premise of tapered roller bearing, it can be used. 1. Electric heating 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 big minor heart roller bearings 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 spherical roller 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 spherical roller bearings, 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, should use no corrosive thermal stability good mineral oil, transformer oil, it is best to oil and the capacity of the container should be kept clean oil tank should be heated and the size of the spherical roller 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.