| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive pinion support device with improved rigidity for supporting a drive pinion 38 without enlarging components of an end retarder 12. SOLUTION: The drive pinion support device 10 rotatably supports the drive pinion 38 having a pinion shaft 36 and a pinion gear 28 provided on one end of the pinion shaft 36 to have a diameter larger than that of the pinion shaft 36 via a pair of tapered roller bearings 40, 42 separated from each other to have a predetermined distance X between support points in the axial direction C1 of the pinion shaft 36. An inner ring 50 of the tapered roller bearing 40 on the pinion gear 28 side has a circular projection 58 projecting toward the pinion gear 28. The pinion gear 28 is formed on a rear surface on the pinion shaft 36 side and has a recessed part 62 inserted with the circular projection 58. COPYRIGHT: (C)2010,JPO&INPIT
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