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Recent content by Hidromar

  1. Hidromar

    Help with Selecting Seal Type.

    Hi! These pressure and speed is not very dramatic for a seal. Specially a plastic seal Depending on finishing and misalignement, you can use a plastic seal Later on you’ve got the possibility to use packings, but this needs to have some maintenance as far as a compression should be guaranteed...
  2. Hidromar

    O-Ring friction

    Hi! All replies are inside a book that is being written during these days ;) but there's no right answer for this as son as materials on production of seals are very different. Nevertheless, please, consider the following: 1) As soon as an O-Ring is a (said) automatic seal (need to be...
  3. Hidromar

    Plastic Lip Seal

    Hi! Some important information is missing: speed If looking for high speed, plastic seals are OK, otherwise, rubber O-Ring is the low-priced seal for you. Counterface is also important, so (as son as I understand) is a plastic material, but (some) plastic, working against plastic tends to...
  4. Hidromar

    Rod seals

    Oops! I guess you found this seal, as it has been said, it's very easy to find another similar seal to retrofit. In any case, if you are looking for the exact manufacturer of this one, Parker has got a similar color for a PUR compound. So, if you found it Nice! otherwise, please try to send...
  5. Hidromar

    Pneumatic piston ring design

    Hi, Fluffy! I guess you have considered using floating seals, as soon as speed is high. In this case, you can almost use both plastic and metal seals since pressure is not such higher. For plastic, and depending the counterface material, I would use PTFE+Ekonol, or PTFE+PI (being the first...
  6. Hidromar

    Sticky O-ring

    Hi! Sorry to be so late! Standard EPDM O-Rings' compound tend to be more stickier than other standard rubber o-ring material. This can be the reason why it works fine at mounting but after a time (enough to get off the grease on the contact area) it becomes more difficult. On the other hand...
  7. Hidromar

    submarine seals

    Hi! On seals used for this application it exist a deformation of the seal, into the housing, to do the job to avoid the ingress of water into the system. By the way, all these elements are ready to withstand friction. Nevertheless, friction, in this case, will not be very important since: -...
  8. Hidromar

    Seal seminar

    Hi, rayhawk Regarding Spring energised seals, you can try on, but this kind of seals are very critical (more for use you intend to do) and, mostly, you might get more information thanks to different cathalogues. (On the other hand, most of these are very focused on how's best is their seal...as...
  9. Hidromar

    O-Ring Calculation

    HI, mirovyaneto You are right with your calculations. Even the O-ring O.D. is pretty close to bore O.D. you avoid an excess of contact at this point. Doing this way, you avoid an early damage of the seal (more contact->more friction->more heat->more damage) Tests have been done showing that...
  10. Hidromar

    Sealing a shaft for concrete delivery screw

    Grindy May you share a drawing? http://www.hidromar.es
  11. Hidromar

    Advice on LCP-POM wear?

    Hi! Ticona (itself) has a document(Plain bearings made from engineering plastics) on which you can see a "small" relation of plastic/plastic combinations. Althougth it isn't included POM/PEEK, you tan take the combination POM/PBT or PET On the other hand you've got the point about tribology...
  12. Hidromar

    Bearing OD Fits or Anti-Rotation Features

    Hi! "Just adding" 1) We produce rotary polymer seals. Some of them are made for high speed rotating. In these cases, an O-ring on the "static" part of the seal is, also, the part we use on these seals in order to avoid self-rotation of the seal, as soon as housing don't allow to install...
  13. Hidromar

    Meta to metal face seal

    Hi! Just like "brainstorming" (not to be critical) Europipe: Spiral wound gasket will be good as far as maintenance will be considered, but, I think, this system would be "no maintenance". At the same time, torque tend to be higher, and temperature is a point to take care about. Regarding...
  14. Hidromar

    Meta to metal face seal

    arounhere The point with these seals (as far as I hardly know them) is that these seals are not prepared to work under these conditions, I mean, being face seal. Swageloc system is good while fitting 2 parts (tubes...) http://www.hidromar.es
  15. Hidromar

    Sealing a shaft for concrete delivery screw

    Interesting point, MikeHalloran This kind of seals are widely used on machinery's wheel's axes in order to avoid inlet of mud, sand... This one can be considered also! http://www.hidromar.es

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