①滚动轴承标有代号的端面应装在可见方向，以便更换时查对。 The end face of rolling bearing with code should be in a visible direction, in order to change the check. ②轴颈或壳体孔台阶处的圆弧半径应小于轴承上相对应处的圆弧半径。 (2) shaft neck or hole in arc radius should be less than the bearing shell are corresponding to the arc radius. ③轴承装配在轴上和壳体孔中后，应没有歪斜现象。 (3) bearing assembly on the shaft and hole in the shell, should be no askew phenomenon. ④在同轴的两个轴承中，必须有一个随轴热胀时产生轴移动。 (4) in the two coaxial bearing, there must be a along with the axial thermal produced when axis movement. ⑤装配滚动轴承时，必须严格防止污物进入轴承内。 (5) when the rolling bearing assembly, must be strictly prevent dirt from entering the bearings. ⑥装配后的轴承，须运转灵活、噪声小、工作温度一般不宜超过65℃. 6 after the bearing assembly, flexible operation, low noise, working temperature should not be commonly more than 65 ℃.