| 摘要 |
<P>PROBLEM TO BE SOLVED: To decrease an axial clearance without decreasing a radial clearance of a rolling bearing. <P>SOLUTION: The electric power steering device is provided with a worm 3 coupled to an output shaft 1a of an electric motor 1, a worm wheel 4 engaged with the worm 3, and a rolling bearing 6 wherein an outer ring 6b is loosely fitted with a housing 7. A shaft part 3b of the worm 3 is pressed in an inner ring 6a of the rolling bearing 6, and an annular groove 15 is provided on a peripheral surface of the shaft 3b contacted by this pressing-in or an peripheral surface of the inner ring 6a. The inner ring 6a is deformed to an orbit groove 6c side while making an orbit groove 6c as a center by pressure in a radial direction added on a non-annular groove part. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
