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  • Users: jjfa
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  1. jjfa

    Abutment rings

    When you have a shaft with an area which has a cover of tungsten carbide or ceramicic, and this area happens to be where the collar of the mechanical seal is placed, it is well known that the set screws could damage this area and slide because of the hardness of the surface. Because of this to...
  2. jjfa

    Bearing isolators

    I have to order a bearing isolator for an application, but I haven´t been able to take the necessary measures of bore diameter, shaft, nearest obstruction, etc. But the personal at field have a replacement in stock which has the following code, 1750A-01312-0 and 1700-R-02495-5, this is a bearing...
  3. jjfa

    Equivalence between FAG and SKF Bearings

    Hello, Does anybody has information about a table in which equivalence between FAG and SKF bearings is available?. I would appreciate your help ASAP.
  4. jjfa

    Equivalence

    I would like to know the equivalence between API grade and cP or cStoke viscosity. Thanks a lot
  5. jjfa

    Friction coefficient

    I would like to know the static friction coefficient between steel-steel. Thanks
  6. jjfa

    misalingment in a two rows roller bearing

    I would like to know the allowable misalignment in a two rows roller bearing, cause I calculated the misalinment that i have in the places in which the bearings will be placed in the shaft and I need to consider this parameter to see if the bearings will work!
  7. jjfa

    equations needed

    I´m designing a mechanical piece used to induce the movemente in a spooler. This piece has sombre steel plates that area welded to a main one, I would like to know which equations shiold i use in order to estimate the lenght of the welding, according to the loads that are present (torque)
  8. jjfa

    Oring problem

    I´m selecting an oring for an application in whicj the fluid process is ethane/butane and the barrier fluid is methanol. The process temperature is very low (6°F). Viton was at first used but they burned. Which was would you recommend

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