Based on past experience of many users, we analyzed the rubber roll life is not long categories reasons. First, select the cot in addition to look at product quality, but there is a good service is necessary, many users choose the nearest cot illustrates this point. Roller is a very delicate thing, and most of the users' awareness of cot poorly understood, which means that users need timely and thoughtful service suppliers. If you do not receive timely after-sales support, there is no practical way to solve practical problems, so shortening the life of rubber roller can be imagined. Secondly, many users likely to commit such a mistake, spending too much time on the replacement rollers. Users mind is good: three months to replace a roller, each time with new products that can enhance the print quality. But in fact often counterproductive. Cots and press is a running process, with the use of rubber roller, you will find new problems, the next will have a better solution, in order to achieve the best stage. The constantly changing Cots get excellent print actually become shackles, each a replacement rubber roller, to be shut down, disassembly, installation and commissioning. It sounds like installation is not difficult, but it is a very important issue. Roller bearings are properly installed, generally include suitable bearings between the roll neck and tightness. Now a lot of users in order to save costs, often install their own bearings, in fact there will be some small parts between the shaft and the bearing head Cots some models, is used to maintain the dynamic balance Cots, so Cots better performance of its quality balance. If because of the rubber roller bearing problems, and affect print quality, a bit more harm than good.