FAG bearing accuracy
1,FAG bearings installed in the host, such as measuring the FAG bearing spindle runout, can be found in the measured value of each turn to have some changes; continuous measurements, can be found after a certain number of revolutions, this change will approximately repeated.
Indicators to measure the degree of this change for the circular rotation accuracy, changes in approximate repeat accuracy required for the transfer on behalf of the cyclic rotation "quasi-periodic, the magnitude of changes in amplitude in the quasi-periodic cycle rotation accuracy is .
Be properly pre-load, such as FAG bearing spindle speed will be gradually increased to close to operating speed, to "run" the role of the implementation of the bearing can improve the accuracy of cyclic rotation of the spindle.
2, to improve the accuracy of a method of FAG Bearings
A factory trial precision instruments, spindle 6202/P2 type bearing its accuracy still can not meet the requirements of the journal after the bold and produced on the raceway to replace the inner ring, and carried the ball to the precision measurement of the size a group of three, the ball of each group to take close to 120 ° intervals to separate due to the reduction of re-machined surface, but also to reduce a heavy mating surface, while the stiffness of the shaft bearing system, a maximum of three with minimum three the ball close to equidistant distribution, but also improves the axis of rotational accuracy, then meet the requirements of the precision of the instrument.
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