| 摘要 |
PURPOSE: To prevent lubricating oil from the bearing side, from flowing out to the outside by disposing an oil seal between the extending part of the inner race of a bearing supported on a sleeve and the sleeve. CONSTITUTION: A drive pinion 41 is supported on a sleeve 45 through a taper roller bearing 43. The inner race 49 of the taper roller bearing 43 is extended onto a companion flange 53 side to form an extending part 49a with the absence of a roller 51. An oil seal 59 is disposed between the extending part 49a and the sleeve 45. The oil seal 59 is provided with seal lips 59a, 59b brought into contact with the outer periphery of the extending part 49a of the inner race 49 and a seal lip 59c brought into contact with the side of a dust shield 61. This sealing structure inhibits lubricating oil from reaching a contact part 53a with the inner race 49 of the companion flange 53, thus preventing lubricating oil from flowing out to the outside. |
