| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a one-way clutch unit having simple and compact construction. <P>SOLUTION: An annular recessed portion 67 is provided on the inner periphery of a first inner ring 7 of a first one-way clutch 1 at the side of a deep groove ball bearing portion 55, and the end of a second one-way clutch 2 at the side of a deep groove ball bearing portion 65 is placed in the annular recessed portion 67. Thus, the axial size of the one-way clutch unit is shortened by the axial size of the one-way clutch 2 arranged in the annular recessed portion 67. The thicknesses of the first inner ring 7 and a second outer ring 14 at the sides of the deep groove ball bearing portions 55, 65 are greater than those at the sides of one-way clutch portions 50, 60, preventing the degradation of the radial load strength of the one-way clutch unit due to the annular recessed portion 67 provided on the inner periphery of the first inner ring 7 at the side of the deep groove ball bearing portion 55. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
