Rolling bearing temperature measuring location regulations

In daily operation, should be through the human senses or special equipment running status monitor and check of the bearing, and when found early failure, and take corresponding measures to deal with, in order to avoid failure of expansion, a series of serious consequences. Here is the commonly used monitoring inspection and fault judgement method. At present, the market has appeared quite a number of instruments, used to monitor the bearing, most of these instruments is based on the vibration measurement. These instruments, however, not all the machines are equipped in this case, the relevant personnel to bearing fault signal 'remain on high alert, such as temperature, noise and vibration. 'Listen', 'touch', 'observation' is an effective means of three commonly used. Bearing temperature thermometer method available at runtime or embedded thermometry meter method to measure. When measured, should guarantee the thermometry meter with good heat transfer between measured parts, for example, all the air gap should be in thermal conductive materials filled in. Measure the position should be close to the table 5 - as much as possible 1 the measuring point specified in A or B, as shown in figure 5 - Shown below. Between points A and B as well as between these two points and bearing the hot temperature difference, its value is related to the bearing size. The pressure into the type of bearing sleeve bearing and inner diameter & amp; lt; 150 mm ball or roller bearings, bearing temperature between A and B general negligible; For the bigger bearing, A point temperature up to 15 k higher than point B. (1) for external rotor motor, A point is located in the bearing inner circle still part of no more than 10 mm, point B is located in the outer surface of the stationary part, as close as possible to the bearing outer ring. (2) points away from the bearing outer ring or oil film clearance distance from the thermometer or embedded thermometry meter counted up recently.