Patent ID: 9086092
Filing Date: 2015-07-21
Classification: F16C,H02K

Abstract:
1. An AC generator for a vehicle, the AC generator comprising: a bearing box which is formed in a bracket and includes a threaded portion formed on a circumferential surface of the bearing box; a bearing which is inserted into the bearing box proximate to an inner circumference portion of the bearing box; a retainer, which fixes and retains the bearing in the bearing box, and has a cylindrical shape and a threaded portion formed on a circumferential surface of a cylindrical section, wherein a dimension of the circumferential surface of the retainer conforms to that of the circumferential surface of the bearing box, and the threaded portion on the circumferential surface of the retainer is configured to be directly screwed to the threaded portion on the circumferential surface of the bearing box to fix and retain the bearing, so that a gap between an outer circumference surface of the bearing box or an outer circumference surface of the retainer and an opposing side of a cooling fan is made uniform.