Method for adjusting axial clearance of tapered roller bearing for rail transit

The invention discloses a method for adjusting the axial clearance of a tapered roller bearing for rail transit, relates to the technical field of bearing detection, and is used for solving the problems that the axial clearance detection is inaccurate due to the precision limitation of measuring equipment, the equipment precision requirement for machining the width of a space ring is higher and the machining cost is low in the existing axial clearance adjusting mode. And a bearing user needs to be equipped with special equipment for processing the space ring. Comprising the following steps: (1) calculating the width size of a space ring to be assembled; (2) selecting an assembly space ring meeting the width size requirement; and (3) assembling. The axial clearance adjusting device is suitable for adjusting the axial clearance when two single-row tapered roller bearings of a rail transit wheel are installed in a back-to-back mode. The nominal size of the width of the assembling space ring is far smaller than t