Method for measuring pairing repair and grinding amount of two-row ball bearing

A method for measuring the pairing and repairing amount of a two-row ball bearing includes the steps that firstly, an inner standard block and an outer standard block are manufactured according to the two-row ball bearing to be paired and repaired, the outer diameter and the inner diameter of the outer standard block are equal to the outer diameter and the inner diameter of a bearing outer ring respectively, and the inner diameter and the axial length of the inner standard block are equal to the inner diameter and the axial length of a bearing inner ring respectively; the outer diameter of the inner standard block is equal to the inner diameter of the bearing outer ring; the axial length of the bearing outer ring is measured, the inner standard block is installed in an inner hole of the outer standard block, the end face distance between the inner standard block and the outer standard block is measured, then zero setting is conducted on a torsion spring comparator of the measuring device through the standard