求翻译：轮毂轴承采用润滑油润滑，不需拆卸轮毂即可保养，同时油腔和主减速器的油腔相通，轮毂轴承的运行条件得到极大改善，使用寿命得到了提高。是什么意思？

Wheel bearing lubricating oil, can be maintained without removing the wheel, while the oil chamber and the main gear box oil cavity, wheel hub bearing operating conditions have been greatly improved, life has been improved.

wheel bearings used lubricating oil lubrication and do not require demolition Wheel can be maintained, and oil and oil also communicates the reducers in the running wheel bearings will be greatly improved, life conditions have been improved.

The wheel hub bearing uses the lubrication oil lubrication, does not have to disassemble the wheel hub then to maintain, simultaneously the oil cavity and the main gear box oil cavity is interlinked, the wheel hub bearing movement condition had the enormous improvement, the service life obtained the

Wheel bearings are lubricated by lubricating oil, without dismantling wheels can be maintained, while oil cavity communicates with the main reducer oil cavity, wheel hub bearing operating conditions are vastly improved, improved service life.

The hub bearing adopts the lubricating oil to lubricate, does not need to dismantle the hub to maintain, oil and oil of the main decelerator communicate at the same time, the operating condition of the hub bearing gets the great improvement, service life was improved.