调心球轴承有圆柱孔和圆锥孔两种结构，保持架的材质有钢板、合成树脂等。其特点是外圈滚道呈球面形，具有自动调心性，可以补偿不同心度和轴挠度造成的误差，但其内、外圈相对倾斜度不得超过3度。该类轴承适用于承受重载荷与冲击载荷、精密仪表、低噪音电机、汽车、摩托车、冶金、轧机、矿山、石油、造纸、水泥、榨糖等行业及一般机械。  

    The self-aligning ball bearing has two structures: cylindrical hole and conical hole. The material of the cage is steel plate, synthetic resin and so on. Its characteristic is that the outer ring raceway is spherical and has automatic heart control, and it can compensate the error caused by different degrees of heart and axis deflection, but the relative inclination of inner and outer ring must not exceed 3 degrees. This kind of bearing is suitable for heavy load and impact load, precision instrument, low noise motor, automobile, motorcycle, metallurgy, rolling mill, mine, oil, paper, cement, squeezing sugar and other industries as well as general machinery.