Daily Care of Bearings
Bearings simply do not break down one day. Before a breakdown occurs, symptoms such as abnormal
noises, increased vibration and increased operating temperature will occur.
Because of this fact, it is very important to check and record the operating conditions of a bearing at regular
intervals. With this information, problems will be detected and maintenance can be scheduled before
catastrophic failure occurs.
The following items should be checked on a daily basis.
 Changes in vibration values, generation of strange noise
 Increase in temperature
 Changes in amount and condition of lubricant
 Changes in the electrical current value (Ammeter) of the drive motor.
Records of inspection results and trend control should be carried out as follows.
i) Determine chart format for each inspection item
ii) Determine the interval for inspections.
iii) Determine the inspection method and equipment to be used for the inspections.
iv) Carry out the inspections and record the data.
v) Look for any changes in the data on the chart. (Use previous results to determine standard control values).
vi) If the data goes outside the bounds of the standard control values, this is a sign of possible equipment breakdown. The cause of the problem should be determined and
the equipment repaired as necessary.