What is thermal charging of angular contact ball bearings? How should we heat the thermal packing of angular contact ball bearings? Based on 37 years of experience, Sanli tells everyone that hot charging of angular contact ball bearings generally refers to a heating process after the inner trap of the bearing is installed on the bearing block of the transmission shaft, which is divided into two types: hot charging (or hot charging) and cold charging processing technology. Generally speaking, the former effect is better than the latter. There are four common methods for thermal packing and heating of angular contact ball bearings: (1) Heating insulating oil method Put the angular contact ball bearings on the spherical grid in the insulating oil. Heat the insulating oil, pick it up after the predetermined time, clean the oil stains and appendages with a clean, lint-free cloth towel, and put it on the shaft as soon as possible. (2) DC vortex heating method After the angular contact ball bearing is placed on the moving iron core of the DC heater, it is connected to the power frequency AC power supply of the heater. Due to the magnetic effect of the current, the bearing will generate eddies (current flow) in the inner and outer sides, thereby generating heat and expanding it. This type of heater is produced by a professional factory, with specifications and models of different capacities, which can be selected according to the size of the bearing. To control the heating temperature, you can use its built-in temperature measuring device. If not, you can use thermal resistance or point thermometer to measure directly, or after specific and accurate measurement, statistical analysis reaches the required time, and then change the duration to control , which will be more convenient, but different heating time should be obtained according to different natural ambient temperatures. (3) Drying box heating method Put the angular contact ball bearing into a special drying box, and the temperature of the drying box should be stable and even. After the set time, take it off and put it on the transmission shaft as soon as possible. (4) Electromagnetic cooker heating method Put the angular contact ball bearing on the electromagnetic cooker and heat it, which is more suitable for smaller bearings, especially in the absence of the above equipment, such as when the user replaces the bearing on the spot. Method. The electromagnetic cooker used has products produced by professional factories, and general electromagnetic cookers used for home cooking can also be used. During operation, attention should be paid to adjusting the temperature power switch to accurately measure and maintain the temperature. Only when the torque is accurate can the rotation be stable! (http://)
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