| 摘要 |
PURPOSE:To facilitate dismantling operation for a thrust bearing by making the bore of a bearing frame larger than the outside dia. of a coupling flange, and by supporting the undersurface of a frame plate or upper disc by the oversurface or undersurface of the coupling flange. CONSTITUTION:In a bearing frame 8, the inside dia. phi2 of a lower disc 8c and the inside dia, phi3 of an upper disc 8b are made larger than the outside dia. phi1 of a coupling flange 19, This enables sinking the bearing frame 8 below the undersurface of the coupling flange 19, when the bearing device is to be lowered using a hang beam 11 and a chain block 12. When it is conducted, the bearing device is supported on the oversurface of the coupling flange 19 by a support 31 fixed to the undersurface of a frame plate 8a so as to provide a large working space H2 required to take out the bearing 3. |
