Observation of rubber rollers aging performance of Dongguan-ho Cots plant, adhere to strong quality image, science and technology enterprises, pay close attention to product quality, integrity first, to win the market, to achieve leapfrog development. We use advanced technology and imported raw materials, and through cooperation with domestic Institute of Materials, constantly optimize the process to ensure product quality. Rubber rollers in alternating stress or strain under the effect of the gradual deterioration of physical and mechanical properties, and finally the loss of use value called cot fatigue aging. Eventually leading to ozone aging. Here we take a look at what the performance belongs to aging. Aging rubber roller are expressed as follows: (1) stretched rubber roller to produce ozone aging, surface cracking to produce ozone, ozone cracking rubber rollers have a critical stress exists, elongate when the rubber or when the stress is lower than the critical value, aging occurs when ozone is no crack. (2) Ozone aging rubber roller is a surface reaction, unstressed rubber surface reaction depth of 10 to 40 molecules thick. (3) rubber roller when generating ozone cracking, crack direction and the direction perpendicular to the force, which is light oxygen ozone cracking and aging-induced cracking of the difference.