Precautions for measuring radial clearance of bearings
(1) Use special instrument measurement methods whenever possible;
(2) Measurement by hand is required to have higher measurement skills. This method has a large measurement error, especially when the clearance is in the edge state, which is easy to cause an error. In this case, the instrument measurement shall prevail;
(3) When measuring the feeler gauge, it shall be operated in accordance with the standard regulations, and shall not be measured by rolling the roller from the feeler gauge;
(4) During the measurement process, the ball should be guaranteed to fall into the bottom of the ditch; the closed bearing should be measured before closing; when using a loaded instrument, the measured value should also be reduced by the amount of play increase caused by the load.
(5) For multi-row bearings, it is required that the clearance of each column is qualified, and the arithmetic mean of each column clearance is taken as the radial clearance of the bearing.
