| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a camshaft device capable of reducing the rotational torque of a camshaft and facilitating the manufacturing of an assembling part to which bearings for supporting the camshaft are assembled. <P>SOLUTION: The bearing closest to a pulley P out of a plurality of bearings for supporting the camshaft 1 rotatably is formed as a rolling bearing 4, and the other bearings are formed as sliding bearings 3. The rolling bearing 4 includes a roller bearing part 5 having a first outer ring raceway surface 51 and a plurality of cylindrical rollers 53 rolling on the first outer ring raceway surface 51, and a ball bearing part 6 arranged axially adjoining the roller bearing part 5, and having a second outer ring raceway surface 61 and a plurality of balls 63 rolling on the second outer ring raceway surface 61. The first outer ring raceway surface 51 and the second outer ring raceway surface 61 are formed on the inner peripheral surface 7a of a single outer ring 7. <P>COPYRIGHT: (C)2011,JPO&INPIT |
