| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber crawler with high durability using a rubber composition improving adhesiveness between a metal reinforcement, such as a steel cord, and rubber, especially improving adhesion after heat aging or under high humidity while reducing scorch of rubber as much as possible by exhibiting good work efficiency using a vulcanization accelerator having a moderate vulcanization-retarding effect without using a vulcanization retarder, such as CTP having a possibility to cause problems, such as deterioration of physical properties of rubber and blooming after vulcanized.SOLUTION: The rubber crawler uses a rubber composition as treat rubber, the rubber composition containing 0.1-10 pts.mass of a sulfenamide-based vulcanization accelerator represented by formula (I), 0.03-3 pts.mass, as an amount of cobalt, of a cobalt-containing compound, and 0.3-10 pts.mass of sulfur based on 100 pts.mass of a rubber component. Wherein, R1 is a 3-12C branched alkyl; R2 is a 1-10C straight chain alkyl; R3 to R6 are each a hydrogen atom, a 1-4C straight chain alkyl or alkoxy, or a 3-4C branched alkyl or alkoxy, and may be the same or different; n is 0 or 1; and x is 1 or 2. |
