These are the advantages of polyurethane casters, polyurethane casters a number of physical and mechanical features of the target are based on the original data selection and adjustment of formula, within the size must be change, then satisfied different needs of users of products function. Such as hardness, is often the user an important goal for products, round polyurethane elastomer can be made into Shao Er A hardness of the 20 or so soft printing rubber roller, and can be made into more than 70 Shao Er D rigidity rolling roller, which is usually elastomer information is hard to do. Polyurethane elastomer is composed of many flexible chain segment and rigid chain segments of the polarity of polymer materials, with the progress of the rigid chain segments share and the increase of density of polar group, elastomer original strength and hardness will progress accordingly. Pu castor especially in the presence of wet media such as water, oil operation conditions, its wear resistance is usually a general rubber data several times to dozens of times. Metal materials such as steel, although is relatively strong, but it will and must be the most wear-resisting, such as the Yellow River irrigated area of large water pump, the flow components metal mouth ring and maintenance by a lot of sediment flushing, in less than a few hundred hours serious wear and tear is leaking, and choose the mouth of the polyurethane elastomer coated rings and maintenance operation successively in 1800 small into still not wear. Other rice huller rubber roller, such as milling, coal preparation with sieve sieve plate, stadium track the runway, forklift truck crane dynamic oil seal, elevator wheels and wheel roller skates, etc are also polyurethane elastomer. In this to be said that to lower the hardness of the friction coefficient of polyurethane elastomer parts progress, improvement under the bearing load of wear-resisting function, can increase the minority in this type of polyurethane elastomer disulfide aluminum and graphite or silicone oil lubricant. These are the advantages of polyurethane casters, more news and information about pu castor please click: hynews / 354. html