Oil slingers don't do much for bearing lubrication, right?
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Look at the oil level in the sight glass of the pump bearing box to ensure that the bearings are lubricated by the oil bath. The oil slinger on the shaft is far away from the bearings on both sides and is not positioned. I think the oil slinger will not play any role. It can be used without it, right?
The oil slinger ring can help the lubricating oil be supplied to the bearings from all directions during the operation of the pump.
”"Oil slinger", this term may be problematic. It should be called an "oil ring", which is more appropriate to the principle of its setting and function. If you don't believe it, try removing it and look at the bearing bush after half an hour.
I looked at 3 identical pumps and looked inside the bearing box from the exhaust hole. Only one pump saw an oil ring, but the other two did not. This means that the oil ring is near the bearing on one side, so the oil ring has no effect on the bearing on the other side, right?
Bearings can be divided into rolling bearings and sliding bearings. The rolling bearing can be immersed in oil on one side slightly lower than the outer diameter of the inner sleeve of the rolling bearing. When rotating, the thin oil can be brought to the lubricating surface of the ball and the bearing sleeve. It is not necessary to have an oil ring. If it is a sliding bearing, the oil must be brought to the rotor shaft, and then spread to the top of the upper arc of the sliding shaft through the tension of the oil. At this point, the gap between the shaft and the bearing bush is the largest, and the oil can be injected into the lubricating surface to provide lubrication. It is recommended that you pay attention when disassembling and you can understand the principle.
A bit like the structural diagram of a condensate pump
The oil throw ring is hung on the shaft, and the lower part is immersed in the oil. It can be made of metal or non-metal. When the shaft rotates, the oil slinging ring will show irregular idle motion, pick up the lubricating oil, throw it to the inner wall of the bearing box and the bearing, and stir the lubricating oil to make its temperature uniform.
The oil level with an oil slinger is lower than that without an oil slinger.
The bearing beads can be soaked into the window, and it won’t matter if it’s there or not.
I wonder if in addition to the functions mentioned by everyone above, there is also a protective function, that is, when the oil level is lower than the normal value due to oil leakage and other reasons, and the bearing is not soaked in, and it is not discovered in time, the oil slinger can also throw the oil onto the bearing to prevent the bearing from burning immediately.
Oil slingers are generally used in conjunction with sliding bearings to lubricate and cool friction surfaces. When an oil slinger is used in a rolling bearing, the oil level generally only reaches the lower part of the bearing outer ring. Judging from the drawings provided by the poster, the oil level has almost submerged 1/3 to 1/2 of the bearing rollers, which is enough for lubrication. Therefore, I personally think that the oil slinger ring has little significance for bearing lubrication. Considering that there are fins on the suspension for heat dissipation, I guess the oil slinger is to assist in heat dissipation.