汽车水泵轴承是轴与内圈—体化的轴承单元，通过对轴承村料、工艺装备及金刚滚轮等的改进，使水泵轴承的尺寸精度提高，振动值优于ＦＡＧ公司产品。所采用的金刚滚轮成形修整砂轮切入磨创新工艺对提高产品的尺寸精度，旋转精度和动性能有决定性的作用。附图８幅，表３个。 Automotive water pump bearings are shaft and inner ring - the body of the bearing unit, through the bearing village material, process equipment and diamond wheel and other improvements, so that the dimensional accuracy of the pump bearings to improve the vibration value is better than the FAG products. The use of diamond wheel forming grinding wheel cutting new technology to improve the product dimensional accuracy, rotational accuracy and dynamic performance has a decisive role. Figure 8, Table 3.