| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing an inner ring for uniform velocity universal coupling with which a lubricating treatment can be performed in inline and the good lubricating performance is secured at a low cost. SOLUTION: In the apparatus for manufacturing the inner ring for uniform velocity universal coupling, which forms the plurality of track grooves on an outer peripheral surface at the same interval in the circular direction along the axial direction; at the output side of a pressing machine 29 for forge-forming the raw-shaped material 16b for inner ring, water-soluble lubricator 34 is coated on the surface of the raw-shaped material 16b and a film-forming device 31 for forming the water-soluble film by vaporizing flux in the water-soluble lubricator 34 with the excessive heat of the forging, is set. COPYRIGHT: (C)2008,JPO&INPIT
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