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Dear all, yesterday I finished the assembly of my equipment and tested it, and now I'm here to report some data that may be useful for others. I'm quite impressed (positive) of the temperatures reached by the bearings. Bearing 1 (radial deep groove single row ball bearing): Internal diameter...

Thanks for your reply. From what I understand the manufacturer suggests an ideal oil viscosity at the operating temperature for a mineral oil, however since the base of a synthetic oil is different it should perform better at a lower viscosity: this seems the result of the test described in the...

Hi community, I am the developer of an equipment similar to a pump. This equipment has a bearing lantern with 2 bearings: 1 radial deep groove single row ball bearing (bearing 1) and 1 angular contact deep groove double row bearing (bearing 2). Bearing data: Bearing 1: Internal diameter: 45 mm...

Perfect, thanks, yes, considering no leakage and yes I didn't consider the head as it's negligible.

Hi community! sorry, this may be a stupid question :D and not sure where to post it.. I have the following case: a tank with a pipe connected to its bottom, closed with a plug is partially filled with a liquid (red); the tank is pressurized with compressed air (light blue) from its top, let's...

mmm, ok, isolators seal the housing when not running, I agree and they're like mine. When you say "the expansion chamber can limit the pressure change to reduce the chance of dirty atmospheric air being drawn in" I think you are referring at the moment you start up the pump? So if you have an...

Again, thank you. No, no need for the expansion chamber, but thanks for letting me know about it; since bearing isolators will allow air to go out when the machine runs (air thermal expansion, machine running) the maximum pressure inside the housing will be atmospheric. I just did some basic...

What materials are the rings of the seal? If I understand correctly you described that other than the "rubber" al the components of the seal were intact, but from the picture you attached the rotating ring seems broken. I had an issue with a single type mechanical seal Sic/Sic (where the oring...

Thank you very much for describing a real case. I think I figured out what's wrong in my description: once I have vacuum after the first cooling of the bearing housing, if I start again the pump from vacuum/ambient temperature the bearing isolators will not seal the housing, because the oring on...

Hi community! I'm designing a bearing housing for a pump (in reality this is not really a pump, but for simplicity, let's assume it's like a pump). Inside the bearing housing there are a radial ball bearing (1 row) and a axial/radial ball bearing (2 raws), both with the same internal diameter...