深沟球轴承，原名单列向心球轴承，是应用最广泛的滚动轴承类型之一，主要应用于电机、变速箱、汽车、家电等工业领域。其结构包含内外圈、钢球和保持架，内外圈滚道采用深沟弧形设计，摩擦系数小且极限转速高，通常采用钢板冲压或车削成型保持架，并可通过防尘盖、密封圈等配置适应不同环境需求.

     Deep groove ball bearings, formerly known as radial ball bearings, are one of the most widely used types of rolling bearings, primarily used in industrial applications such as motors, gearboxes, automobiles, and home appliances. They consist of inner and outer rings, steel balls, and a cage. The inner and outer ring raceways utilize a deep groove arc design, resulting in low friction and a high maximum speed. Cages are typically formed from stamped or turned steel sheets, and can be configured with dust covers, seals, and other features to adapt to different environmental requirements.