Replace new bearing, should choose with original identical model bearings.
更换新轴承时，要选用与原来型号相同的轴承。
Or bearing crack, inside and outside circle chipped or bearing excessive wear when, should replace new bearing.
或轴承有裂纹、内外圈碎裂或轴承过度磨损时，应更换新轴承。
After about 500 hours' operation, please check the main bearing. If it is necessary, please clean and add proper amount of grease or replace it with a new one.
本机器运行累计500小时左右时，请检查主轴承，必要时清洗，加入适量的润滑脂或更换。
If you find any ball bearings wrong, please replace it with new ball bearing. Higher grade ABEC ball bearings do little, and normal grade is enough.
如果你发现有任何轴承坏了，请重新换上好的轴承，最好是用高等级的ABEC轴承，一般等级的轴承也足够了。
If you find any ball bearings wrong, please replace it with new ball bearing. Higher grade ABEC ball bearings do little, and normal grade is enough.
如果你发现有任何轴承坏了，请重新换上好的轴承，最好是用高等级的ABEC轴承，一般等级的轴承也足够了。
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