Ok, so I took a run to my garage and had a better look at the seal. First, yes there is a spring inside and it is on the inside lip in other word if you are looking at the seal with the # facing you, it would be the second lip inside. That lip is also different than the other one. It is made more like a V shape. The other lip closest to you or I should say closest to the face of the seal with the # is more like a wiper lip and is shape going outside. I took some more pics. So if logic stands, the lip with the spring, shape like a V should be the oil seal and the other lip should be the one stopping the contaminant from going in which mean the seal is wrongly install. Your thoughts please.
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I have never seen a seal fitted otherwise than with the garter spring and lip facing toward the oil or grease in the bearing. (But I have never worked on ag equipment) But if the workshop manual for your machine says otherwise, follow that.
That includes double lip seals, which usually face the same way as a single lip seal.
Normally it is not recommended to pump a bearing so full of grease that it comes out the seal. The recommendation is they need air space inside the bearing for the grease to flow around in there. One or two squirts a year should be enough. If it is packed full the grease can overheat and deteriorate. Again, if the factory workshop manual or owners manual says otherwise, follow that.
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If the machine is so old that it came with leather seals, which always puked eveywhere, then it probably had instructions to keep up the grease supply regularly. But if replacing the leather with modern double lip seals you probably don't need to top up the grease regularly. Like wheel bearings in a car, they pretty much will run for life without fresh grease as long as none is leaking out.
Edited By Hopper on 02/03/ 02:35:00
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