How are the grease filling hole and the drain hole arranged?
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I have a question for everyone. The bearing of a low-speed shaft is mounted vertically, with both the grease filling hole and the oil drainage hole located on the same plane. I would like to know what the internal structure of these oil holes is like Where does the oil filling hole lead to within the bearing? To which part of the bearing does the oil drain hole lead? Why is it designed this way? Generally, when butter is added through the oil filling hole to a certain amount, it will be discharged from the oil drainage hole (as a way of replacing the grease). What will happen if butter is added through the oil drainage hole? Will too much oil also be discharged through the oil filling hole? Are there any downsides?
The fuel filling ports are usually located on the side or top of the tank, at a sufficient distance from the bottom of the tank, to allow for easy fueling. The fuel drainage ports are typically designed to be at the lowest point, or opposite to the fuel filling ports