SEAL STRUCTURE OF CRAWLER-DRIVING APPARATUS

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SEAL STRUCTURE OF CRAWLER-DRIVING APPARATUS

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HIROTA YOSHIKAZU / IMOTO CHIKASHI / ITO KAZUMI / SUGIMOTO JUNICHIRO / NOGUCHI EISHIN / KAWABATA KAORI

A seal structure is provided to block a clearance between a rotational casing and a fixed housing for driving a crawler of a crawler vehicle. A seal ring is held in a first annular holding groove provided in the fixed housing together with a first O-ring that biases the seal ring toward the outside of the first holding groove. A second holding groove having an opening facing the first holding groove is provided in the rotational casing to hold a slide ring having a higher rigidity than that of the seal ring together with a second O-ring that biases the slide ring toward the seal ring. A foreign object such as mud is thereby prevented from invading a gear chamber without increasing a frictional loss.

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Title :

SEAL STRUCTURE OF CRAWLER-DRIVING APPARATUS

Contributors:

HIROTA YOSHIKAZU (author) / IMOTO CHIKASHI (author) / ITO KAZUMI (author) / SUGIMOTO JUNICHIRO (author) / NOGUCHI EISHIN (author) / KAWABATA KAORI (author)

Publication date :

2017-06-15

Type of media :

Patent

Type of material :

Electronic Resource

Language :

English

Classification :

IPC:

B62D MOTOR VEHICLES , Motorfahrzeuge / F16J Kolben , PISTONS