| 摘要 |
A rubber crawler track having less wear at its left and right end portions to improve its durability. The rubber crawler track has steel cords 12 embedded in the longitudinal direction of the track and has a rubber lug 15 formed on the outer periphery side thereof. The rubber crawler track is constructed from three kinds of rubbers that are an inner peripheral side rubber (a), an outer peripheral side rubber (b), and an edge rubber (c) at the left and right of the rubber crawler track. The edge rubber (c) is a rubber layer having the highest hardness degree. The ground contact side, inner peripheral side and ends in the width direction have different kinds of rubber, and the edge rubber (c) having excellent wear resistance with a hardness degree of 72 (JIS A) or greater is placed in particular at the machine body side end of the rubber crawler track because of the significant wear at this location.
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