Manufacturing technology of polyurethane bearing wheel

       From the current market situation, polyurethane rubber coated bearings basically exist in real life, but in order to meet the needs of some bearings, in fact, sometimes there are different ways of use in the actual use of long rubber coated bearings. We must know more about what polyurethane rubber coated bearings should pay attention to.
　　1. During the actual use of polyurethane rubber coated bearing, we must pay attention to the strength, because the rubber coated mold should pay attention to the strength of the skeleton to prevent deformation after rubber coating.
　　2. When using polyurethane rubber coated bearings, we should also pay attention to their shrinkage. The rubber coated mold should pay attention to the shrinkage rate. From the appearance, there is basically no shrinkage of the external parts, and then there is the problem of design. Because many places need to be placed outside, it will not affect the sealing in principle. In this way, it is very good, but from the existing situation, The softening temperature of the bottom part and the rubber coating material shall be at least 20 ° C different.
　　3. When selecting polyurethane rubber coated bearings, we should also pay attention to the positioning of relevant molds to achieve reliable sealing. Prevent some deformation in the process of use, and leave more places for preloading at the sealing position, especially the back with soft glue.