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Typically, the temperature of the deep groove ball bearings with bearings running slowly began to rise, 1-2 hours after the steady state is reached. The bearing normal temperature varies due to the heat capacity of the machine, the amount of heat, the rotational speed and load. If appropriate lubrication, installation, bearing temperature will rise abrupt, abnormal high temperature must stop running, take the necessary precautions. The temperature of the bearings, usually the outside temperature of the bearing housing can be inferred, and if the use of the hole can be directly measured the fag bearing outer ring temperature, and even bit suitable.
Thermal sensors can monitor the working temperature of the deep groove ball bearings and automatic alarm or stop to prevent burning shaft accident occurred when the temperature exceeds the specified value.
High temperatures often said that bearing in an abnormal situation. The high temperature is also harmful to the bearing lubricant. Sometimes bearing overheating can be attributed to the bearing lubricant. If the bearing in the long term even transfer over 125 ℃ temperature reduce bearing life. High-temperature bearings caused by reasons including: lack of lubrication or over lubrication, lubricant. Contains impurities, the load is too large, bearing loss of the ring, the lack of space, and oil seals produce high friction, and so on.
Thus continuous monitoring bearing temperature is necessary, the bearing bearing itself, whether it is the measurement or other important parts. If it is in the case of operation conditions unchanged, any change in temperature can be expressed has malfunctioned.
Regular bearing temperature measurement by means of a thermometer, digital thermometer can accurately measure the bearing temperature according ℃ or Fahrenheit temperature fixed units. The importance of the bearing, which means when it is damaged, can cause equipment downtime, so this type of bearing temperature probe should preferably be retrofitted. Under normal circumstances, the bearing just lubrication or re-lubrication after there will be a natural temperature rise and lasted one to two days.
Typically, the working temperature above 150 ° referred to as high-temperature bearings deep groove ball bearings, chromium bearing steel its hardness to a sharp decline in the temperature exceeds 150 °, dimensional instability, so that the bearing is not working properly. Bearing working temperature of 150 ° to 350 °, if the rings and rolling elements still use ordinary carbon chromium bearing steel manufacturing, must be tempered special bearing parts, should generally be higher than the operating temperature 50 ° tempering. After processing by the above requirements tempering of bearing steel, at the operating temperature under normal use. But tempered hardness decreased, reduced bearing life.
Period check and record the working conditions of the deep groove ball bearings is very important to analyze the information, can be found the problem and arrange for repair before failure. To ensure the safe use of the bearing!
The following is the introduction of routine maintenance checks:
Check deep groove ball bearing vibration value changes, the generation of abnormal noise, temperature rise, the amount of lubricant and traits change, driving changes in the mechanical and electrical current value is normal, check if there are abnormal, they should be handled accordingly.
Here is the tendency to control checks are performed.
1. Determine each check chart format.
Sure to check the cycle.
3. Determine equipment inspection methods and inspection needs. Inspection record data. Observe the change of the data in the chart.
If the data beyond the standard control value, may be a sign of damage to the equipment. Confirm the problem, the need for repairs.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| LM304025 NSK | 25 | 40 | 25.2 |
| LM304020 NSK | 25 | 40 | 20.2 |