The utility model relates to the technical field of bearing measuring tools, in particular to a large-scale thrust self-aligning
roller bearing raceway measuring tube ruler. The end face positioning
pipe ruler head is detachably fixed to the
pipe ruler body and provided with an end face fulcrum used for abutting against the end face of the
ferrule. The raceway positioning
pipe ruler head comprises a positioning fulcrum
assembly hinged to the positioning moving rod, and the positioning fulcrum
assembly comprises a positioning raceway supporting rod capable of rotating relative to the positioning moving rod so that the positioning raceway supporting rod can perpendicularly abut against the
ferrule raceway. The raceway measuring tube ruler head comprises a measuring fulcrum
assembly hinged to the measuring moving rod, and the measuring fulcrum assembly comprises a measuring meter fixing piece capable of rotating relative to the measuring moving rod so as to fix a measuring meter and enable the measuring end to make vertical contact with the
ferrule raceway. According to the utility model, the rotation angles of the positioning raceway support rod and the measuring meter can be adjusted, the
contact angle with the raceway is 90 degrees during measurement, the detection precision is improved, the product quality is improved, the
retainer fitting process can be canceled, and the production efficiency is improved.