| 摘要 |
<p>The deceleration section (B) of an in-wheel motor drive device (21) comprises a casing (22), an input shaft (25) having one end thereof arranged in the casing (22), disc-shaped eccentric members (25a, 25b) which are eccentric with respect to the axis (O) of the input shaft (25) and coupled with one end thereof, revolution members (26a, 26b) each having a central portion supported on the outer circumference of the eccentric member (25a, 25b) through a rolling bearing (41) and performing revolution about the axis (O) of the input shaft (25) as the input shaft (25) rotates, an outer circumference engaging member (27) supported by the casing (22) and engaging with the outer circumferential parts of the revolution members (26a, 26b) to cause the rotation of the members (26a, 26b), and an output shaft (28) engaging with the revolution members (26a, 26b) and picking up the rotation, wherein the rolling bearing (41) has a hole (59) for supplying lubricant to a raceway (42a) which comes into rolling contact with a rolling element (44), and the lubricant hole (59) is arranged in the no-load range 360°-f of the raceway (42a) of the rolling bearing (41) where a bearing load being imparted to the revolution members (26a, 26b) from the output shaft (28) and the outer circumference engaging member (27) is not shared.</p> |
