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Precautions for radial clearance measurement of IKO bearing

  1. Special instrument IKO bearing method shall be adopted as far as possible;
  2. Using the hand push method requires the surveyor to have high measurement skills. The measurement error of this method is large, especially when the clearance is in the edge state, it is easy to cause errors. At this time, the instrument measurement of IKO bearing should prevail;
  3. When measuring with a feeler gauge, it should be operated according to the provisions of the standard, and it is not allowed to use the method of rolling rollers from the feeler gauge to measure;
  4. During the IKO bearing, ensure that the ball falls into the ditch bottom; Closed IKO bearing shall be measured before sealing; When using a loaded instrument, the measured value should also subtract the increase in clearance caused by the load.
  5.  For multi row  IKO bearing, the clearance of each row is required to be qualified, and the arithmetic mean of the clearance of each row is taken as the radial clearance measurement of IKO bearing.
measurement of IKO bearing

Cleaning measurement of IKO bearing

  1. When the IKO bearing is removed for inspection, the appearance record shall be made by photography and other methods first. In addition, confirm the amount of remaining lubricant and sample the lubricant before cleaning IKO bearings.

  2. The cleaning of measurement of IKO bearing is divided into rough cleaning and fine cleaning, and the metal mesh frame can be placed at the bottom of the container used.

  3. During rough cleaning, remove grease or adhesion with a brush in oil. At this time, if the IKO bearing is rotated in oil, be careful that the rolling surface will be damaged by foreign matters.

  4. During fine cleaning, rotate IKO bearing slowly in oil and carefully.The commonly used cleaning agent is neutral water-free diesel oil or kerosene, and warm lye is sometimes used as needed.

  5.  No matter what kind of detergent you use, you should always filter it to keep it clean. After cleaning, coat measurement  with antirust oil or grease immediately

measurement of IKO bearing

measurement of IKO bearing

  1. The cleaning of measurement of IKO bearing is divided into rough cleaning and fine cleaning, and the metal mesh frame can be placed at the bottom of the container used.

  2. Using the hand push method requires the surveyor to have high measurement skills. The measurement error of this method is large, especially when the clearance is in the edge state, it is easy to cause errors. At this time, the instrument measurement of IKO bearing should prevail;
  3. The cleaning of measurement of IKO bearing is divided into rough cleaning and fine cleaning, and the metal mesh frame can be placed at the bottom of the container used.

  4. The limit speed of IKO bearing depends on some specific conditions, including the stability or strength of cage structure, lubrication conditions of cage surface, centrifugal force and rotary force acting on the rolling element, manufacturing accuracy and other factors that limit the speed, such as sealing elements and lubricating grease of IKO bearing.

measurement of IKO bearing

Inspection and judgment measurement of IKO bearing

  1. In order to judge whether the removed IKO bearing can be reused, the dimensional accuracy, rotation accuracy, internal clearance, mating surface, raceway surface, cage and sealing ring should be emphatically checked.

  2. The judgment standard varies according to the mechanical performance, importance and inspection cycle. IKO bearings must not be reused and must be replaced in case of the following damage.

  3.  Fracture and defect of measurement of IKO bearing parts.

  4.  Peeling of the rolling surface of the raceway surface.

  5. In the configuration of connecting rod IKO bearings, IKO bearings with preload and lighter and smaller rolling elements are usually used. 

  6. Compare the allowable speed and limit speed obtained by calculating IKO bearing, and take the lower value between them.