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  • Users: A_123
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  1. A_123

    shaft Fit to Spherical Roller bearing

    Actually , the bearing install on shaft without sleeve. Bearing type: spherical roller bearing Bearing No. 22214E/C3 My question about diameter shaft what is min/max to be tight fit with bearing? I attached similar picture of split bearing but it’s without adapter beqring directly install...
  2. A_123

    shaft Fit to Spherical Roller bearing

    Bearing Replacement: Two split block bearing use for Force Draft Fan measuring shaft OD = 69.97 mm spherical roller bearing 22214E/C3 use on Split Roller bearing. what is the clearance between the shaft and Inner race for Spherical Roller bearing...
  3. A_123

    Seal Failure

    I have some inquiry about Mechanical Seal in Petrochemical. most pump that we have 2 for each Tower(under Vacuum) one running another one standby. My Question What is the best practice for standby pump that has Gas Seal (N2). Seal Plan 74 1- Keep N2 online all the time. 2- Isolated N2...
  4. A_123

    Mech.Seal

    question about the function of Throttle bush in Single Seal plan 32 : 1)does it prevent leak or to reduce the leak? 2) standard clearance between throttle bush & sleeve? 3) as you can see in the attached picture PIT Port is not used on the seal just plug, how that will be use to help & prevent...
  5. A_123

    SKF Bearing Designation

    Do you have any idea about the difference between SKF bearing NJ2224EC and NJ2224ECM ??
  6. A_123

    shaft key

    Is there any affect of shaft key looseness? any limit or standard? how to solve it?
  7. A_123

    shaft key

    if there is loose in the key between shaft and impeller, that will cause any vibration or unbalance for two-stage pump. as you can see the picture. http://files.engineering.com/getfile.aspx?folder=ef5231c9-b351-4a68-8e25-9f53b2bbd318&file=tech5_vacuum_ring01.jpg
  8. A_123

    Vibration

    vibration overall change because the shaft bent that increase vibration, Runout 0.25 mm direct coupled anti-friction Cylindrical roller bearing / double-row vibration Reading Min 4.0 mm/s and max 5.3 mm/s (peak) that means overall Axial Measured around the face of plummer block
  9. A_123

    Vibration

    we have change the shaft and impeller for FD Fan after start up vibration in Axial Direction for None Drive End Bearing 4.5 to 5.2 mm/s. and temperature of Drive End (Plummer Block Bearing) 70 to 80 Celsius while None Drive End 55-68 celsius . what do you think the reason of increase the...

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