| 摘要 |
1,112,631. Securing hubs on shafts. GENERAL ELECTRIC CO. 22 Sept., 1966 [9 Nov., 1965], No. 42405/66. Heading F2U. A fan rotor 19 is secured on the end of a drive-shaft 8 by a U-shaped hub portion 1 provided with a radial slot 11, the hub being frictionally engaged with the shaft by a nut and bolt 15 inserted in aligned grooves 13, 14 in the leg portions 3, 4 formed by the slot 11. The hub is encircled by a flange 2 and is provided with a series of grooves 10 forming lands 9 engaging the shaft 8, and the grooves and lands may be tapered axially to assist the withdrawal of a cast rotor from its mould. The hub portion 21 is shaped to form a counterbalance weight to the leg portions 3, 4 and securing bolt 15. |
