Patent ID: 8434210

Claim:
A device for assembling, by screwing, a drive member with a shaft, the drive member including a base section ( 21 ) or a sleeve ( 120 ), the shaft intended to be coupled to a rotor of a rotating electrical motor ( 8 ), the device including: a cavity ( 19 ) delineated by the base section ( 21 ) or the sleeve ( 120 ); a central hole ( 16 , 17 ) formed in the base section ( 21 ) or the sleeve ( 120 ) of the drive member, the central hole of the drive member having an internally threaded section ( 17 ), the central hole opening out at the level of a front face of the base section ( 21 ) or of the sleeve; a threaded section ( 13 ) provided at a front end of the shaft ( 1 ), the threaded section of the shaft intended to work in conjunction with the internally threaded section ( 17 ) of the drive member for screwing the drive member to the shaft; and a supplementary welded connection between the front face ( 40 ) of the base section ( 21 ) or the sleeve ( 120 ) of the drive member ( 8 ) and the threaded section ( 13 ) of the shaft ( 1 ); one of the front face ( 40 ) of the base section ( 21 ) and the front face ( 140 ) of the sleeve ( 120 ) of the drive member ( 8 ) being chamfered; and the central hole ( 16 , 17 ) in the front face of the base section ( 21 ) or the front face of the sleeve being open out at the level of the chamfer.