持久性密封轴承或持久性润滑轴承具有使用方便,承载能力高,摩擦力低的性能而广泛应用。它们不仅使现代设计师免除了维修保养和制造润滑设备的必要性,而且由于轴承的装配,润滑和密封都在同一另件上有利于使设计更加简单和经济。另一个重要的优点是“持久性轴承”可由半熟练工进行操作和装配。它不可能因灰尘进入或润滑剂被污染而损坏。对纺织、汽车和农机工业来说,这是特别引人注目的特征。持久性轴承的使用期限是由密封的效果和润滑脂的有效期控制的。当出现过度的噪音。磨损、运动间隙、腐蚀、表面疲劳、污染时,或者当润滑失效或出现摩擦,或者当滚动元件 Durable sealed bearings or permanent lubricated bearings with easy to use, high load capacity, low friction performance and widely used. Not only do they eliminate the need for modern designers to maintain and manufacture lubrication equipment, but also make the design simpler and cheaper because the bearings are assembled, lubricated and sealed all on the same piece. Another important advantage is that “permanent bearings” can be operated and assembled by semi-skilled workers. It can not be damaged by dust ingress or lubricant contamination. This is a particularly compelling feature for the textile, automotive and agricultural industries. The durability of a durable bearing is controlled by the sealing effect and the grease’s life. When there is excessive noise. Wear, movement gaps, corrosion, surface fatigue, contamination, or when lubrication fails or friction occurs, or when rolling elements