To provide a support shaft forming and journaling method of a turning body, avoiding complicated work requiring a great deal of labor and skill such as positioning of a support shaft set on both sides of the turning body, boring of a shaft hole for setting a bearing and passing of the support shaft through a bearing hole, and parallel arranging turning bodies without a clearance gap between the connected turning bodies.

A support shaft member in which a shaft body 13 is formed on one side of a fitting part 11 shaped like rectangular prisms is face-to-face engaged with a square-like face part of the turning body corresponding to the fitting part to form the support shaft. After the bearing is divided into a fitting base member 2a and a covering member 2b and the fitting base member 2a is fastened on the body bearing part B, the support shaft of the turning body 1A is placed on the base member 2a to be held with the covering member 2b.