求翻译：6．避免轮毂甩油。轮毂轴承及腔内润滑油脂过多，或其油封装配不妥，质量不良及老化失效；制动频繁引起的轮毂温度过高；车轴螺母松动等都会引起轮毂甩油。因此要用“空腔润滑法（即适量润滑）”，疏通通气孔。是什么意思？

6. To avoid rejection of the oil hub. Wheel bearings and grease cavity too much, or seal assembly is wrong, poor quality and aging failure; frequent cause of wheel brake temperature is too high; axle nut loose, and this will lead to rejection of the oil hub. So the word "cavity lubrication (ie moder

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6. avoids the wheel hub flinging the oil.In the wheel hub bearing and the cavity the lubricating grease excessively are many, or its oil seal assembly improper, quality not good and aged expiration; Applies the brake wheel hub hyperpyrexia which causes frequently; The axle nut becomes less crowded a

6. Avoid wheel oil leakage. Hub bearing and lubricating oil and grease in the cavity is too large, or its oil seal Assembly defects, poor quality and aging failure; brake wheel overheating caused by frequent; hub oil leakage caused by loose axle nut. Therefore, should use the "cavity method of lubri

6. Avoid wheel oil leakage. Hub bearing and lubricating oil and grease in the cavity is too large, or its oil seal Assembly defects, poor quality and aging failure; brake wheel overheating caused by frequent; hub oil leakage caused by loose axle nut. Therefore, should use the "cavity method of lubri