| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive pinion support device capable of reducing rotation loss during a low load while securing a necessary support capacity. <P>SOLUTION: The drive pinion support device includes a pair of angular ball bearings 30, 32 provided with inner circumference rings 30a, 32a pressurized against outer circumference rings 30b, 32b by belleville springs 46, 48, and a pair of tapered roller bearings 26, 28 provided so as to receive a thrust load in one direction and another direction in parallel with the axis C of a drive pinion 20. Since the thrust load in the one direction and the other direction is supported mainly by the angular ball bearings 30, 32 during the low load lower than a preset first load and second load, and it is supported by the tapered roller bearings 26, 28 in addition during a high load more than or the same as the first load and second load, the rotation loss during the low load wherein fuel consumption running is carried out can be reduced while securing the necessary support capacity. <P>COPYRIGHT: (C)2010,JPO&INPIT |
