Patent ID: 8330309

Claim:
Tubular induction motor ( 20 ; 30 ) with two directions of rotation, contained in a tube ( 11 ) of a tubular actuator designed to be installed horizontally in a building and adapted for maneuvering a mobile home-automation element, comprising a squirrel cage rotor ( 24 ; 34 ) supported by bearings ( 26 ; 36 ; 46 ) and a stator ( 12 ) comprising a stack of metal laminations forming a central bore ( 12 a ) and centered in the tube, wherein support parts of the bearings ( 29 ; 37 ; 47 ) are centered in the central bore, wherein the bearings are of the plain and conductor type and wherein they are each placed less than 2 mm away from short-circuiting rings ( 24 c ) of the rotor.