| 摘要 |
PURPOSE:To fix a bearing or the like to a predetermined position of a main shaft in a main shaft system structure of a gas turbine engine by using a normal lock nut and not making adjustment. CONSTITUTION:A bearing 5 or the like is fixed to a main shaft 1 through a first spacer 9 having a convex surface 9b, and a second spacer 10 having a concave surface 10b abutting against the convex surface 9b and being provided with the same radius of curvature as the surface 9b, by a lock nut 8. |
