针对目前９００－２０１６ＰＲ轮胎胎圈早期损坏的问题，分析了这种缺陷的特征和成因。通过使用条件与损坏特征之间关系的实际调查，认为低气压、超载、长时间行驶及使用非标准轮辋６００Ｔ是在使用方面导致胎圈早期损坏的原因，而轮胎在超载行驶条件下的变形、生热是导致胎圈早期损坏的主要因素。在减少胎体变形、降低胎圈应力、提高胎圈复合材料间粘合性能等方面采取措施，增强胎圈的薄弱环节，使这一问题得到了很好的解决 In view of the problem of the early damage of the 900-2016PR tire bead, the characteristics and causes of this defect are analyzed. Through the actual use of conditions and the relationship between damage characteristics of the survey, that the low pressure, overload, prolonged use and use of non-standard rims 6  00T is caused by the use of the cause of the early damage to the bead, and the tires in the overloaded driving conditions Deformation, heat is the main cause of early damage to the bead. Take measures to reduce the deformation of the carcass, reduce the bead stress and improve the adhesive properties of the bead composite to enhance the weakness of the bead so that the problem is well solved