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1. (WO2014203563) ROLLER WHEEL FOR TRACK BELT-TYPE TRAVELING VEHICLE

Pub. No.:    WO/2014/203563    International Application No.:    PCT/JP2014/054867
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Fri Feb 28 00:59:59 CET 2014
IPC: B62D 55/14
Applicants: KOMATSU LTD.
株式会社小松製作所
Inventors: KITA, Naoaki
北 直明
Title: ROLLER WHEEL FOR TRACK BELT-TYPE TRAVELING VEHICLE
Abstract:
Provided is a roller wheel for a track belt-type traveling vehicle, the roller wheel being configured so that a bearing for supporting a roller shell has a long life. A roller wheel for a track belt-type traveling vehicle is provided with: a shaft (24) which has a cylindrical outer peripheral surface; a roller shell (23) which is disposed so as to circumferentially surround a part of the outer peripheral surface of the shaft (24) and which has an annular end surface and a cylindrical inner peripheral surface which faces the outer peripheral surface; a collar which is affixed to the shaft (24) and which has an annular facing surface which faces the end surface; a radial slide bearing (25) which is disposed between the outer peripheral surface and the inner peripheral surface; and a thrust slide bearing (26) which is disposed between the end surface and the facing surface. The thrust slide bearing ((26) is provided as a separate body from the radial slide bearing (25). The roller wheel is provided with a rotation prevention structure which prevents the thrust slide bearing (26) from rotating relative to the roller shell (23).