Honda Motor Co., Ltd.

Isamu Muramatsu

Mariko Shibamura

A planetary carrier includes first and second support hole parts that support a pinion shaft on which a pinion gear is provided from both sides in an axial direction. The planetary carrier includes a first holding member and a second holding member. The first holding member includes a connection end that extends in an axial direction toward a second holding member and that is connected to and faces the second holding member. The second holding member includes a fragile part formed on an end part in a circumferential direction in a region to which the connection end is connected.

Planetary carrier

An annular first thrust bearing () includes a first race () which is in contact with a sun gear (Sb), a second race () which is in contact with a ring gear side member (), and a rolling body () disposed therebetween, and the second race has a flange portion protruding radially outward. A second connection member () is disposed on a radially outer side of the first thrust bearing () to face the second race (), and a restricting portion () is disposed at a position facing the first race () or the rolling body () on the rolling element () side of the second race (). A distal end of the restricting portion () is located radially inward of a distal end of the flange portion ().

Structure with thrust bearing

Provided is a structure with a bearing which is capable of suppressing abrasion of a first member and a first annular member of the bearing in contact with the first member even when relative movement occurs between the first member and the first annular member. The structure with a bearing supplies lubricating oil scraped up from an oil reservoir by an output member () to a bearing () disposed between a ring gear (Rb) and a transmission case (). The ring gear (Rb) has a communication groove () which allows two spaces adjacent to the bearing () to communicate with each other in a portion which is in contact with the first annular member () located on an inner circumferential side of the bearing ().

Growing community of inventors

Saitama, Japan

Isamu Muramatsu