| 摘要 |
The invention provides a support roller of a crawler type traveling apparatus which can prevent a rotational resistance from being increased by the soil or the like, and can stably achieve a function serving as the support roller for a long time. The invention provides a support roller of a crawler type traveling apparatus provided with a shaft ( 1 ), a support portion ( 2 ) supporting a center portion in an axial direction of the shaft ( 1 ), and a pair of rollers ( 3, 3 ) respectively arranged in both end portions ( 1 a , 1 a) of the shaft ( 1 ) and rotating together with the shaft ( 1 ). A mounting seat portion ( 36 ) of the support portion ( 2 ) to a track frame ( 51 ) is set within a range (S) of a roller outer shape formed by a pair of rollers ( 3, 3 ) in a plan view.
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