Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25

Thread: Hong Hua sleeve bearing fan

  1. #21
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    2,592
    Thanks Thanks Given 
    178
    Thanks Thanks Received 
    97
    Thanked in
    88 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    I would think it is obvious.

    A lower viscosity lubricant is used and is circulated by the grooves.

    Sleeve bearings use a higher viscosity to prevent pooling, but eventually the centrifugal force does result in a pool of lubricant leaving parts of the sleeve unlubricated.

    Furthermore, the grooves increase the oil storage capacity of the bearing.

    Hard drive fluid bearings have rifling groves?

  2. #22
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    16,892
    Thanks Thanks Given 
    569
    Thanks Thanks Received 
    515
    Thanked in
    383 Posts

    Default

    Quote Originally Posted by ashiekh View Post
    Hard drive fluid bearings have rifling groves?
    Yes. Of course.


  3. The Following User Says Thank You to Jon Gerow For This Useful Post:

    Philipus II (02-04-2020)

  4. #23
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    2,592
    Thanks Thanks Given 
    178
    Thanks Thanks Received 
    97
    Thanked in
    88 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    Yes. Of course.


    That is not what I meant by rifling, that is for axial load; I meant along the shaft.

  5. #24
    Join Date
    Oct 2006
    Location
    jonnyGURU forums, of course!
    Posts
    16,892
    Thanks Thanks Given 
    569
    Thanks Thanks Received 
    515
    Thanked in
    383 Posts

    Default

    Quote Originally Posted by ashiekh View Post
    That is not what I meant by rifling, that is for axial load; I meant along the shaft.
    Look down the shaft. It's rifled as well.

    Hope this helps: https://www.nidec.com/en/technology/capability/fdb/

  6. The Following User Says Thank You to Jon Gerow For This Useful Post:

    Philipus II (02-04-2020)

  7. #25
    Join Date
    Oct 2017
    Location
    Grand Junction, CO
    Posts
    2,592
    Thanks Thanks Given 
    178
    Thanks Thanks Received 
    97
    Thanked in
    88 Posts

    Default

    Quote Originally Posted by Jon Gerow View Post
    Look down the shaft. It's rifled as well.

    Hope this helps: https://www.nidec.com/en/technology/capability/fdb/

    Grooved radial is different from a helix
    Attached Images Attached Images

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •